Home > Altimeters / Tubing & Connectors / Variometers > Winter


Gebr. Winter GmbH & Co.KG
On-Board Devices for Aviation
Jungingen, Germany

On This Page


Overview
Winter has an excellent reputation as a quality manufacturer of aircraft instruments.  With all the high tech devices in sailplanes these days, having a reliable mechanical variometer makes sense.  It will continue to work perfectly regardless of the status of your glider battery and fuses.  Winter is also known for their airspeed indicators, MacCready speed-to-fly rings, altimeters, barographs and accessories for all those products.

The Company
Flight instruments must ensure a safe flight and afford the pilot the opportunity of exploiting the capabilities of his aircraft to the fullest.  The requirement placed on instruments of this nature in regard to measuring accuracy, insensitivity to outside influences (vibration, acceleration, fluctuations in temperature, etc.) and operational reliability are stringent in the extreme
.

Behind The Glass
The August/September 2013 edition of Sailplane & Gliding magazine featured a nice 3-page article about Winter. Click on the image below to view the article.

Photos from Winter's Headquarters in Jungingen, Germany
Click on the images below to view larger versions.
The small town of
Jungingen, Germany
The small town of
Jungingen, Germany
Photo from the castle
(Burg Hohenzollern) in the fog.
 
Instrument Assembly Instrument Assembly Adjusting Airspeed Indicators

Gebr. Winter has accumulated many years' experience in manufacturing and developing flight instruments.  Thanks to optimally equipped test facilities, instrument workshops and a staff of experienced specialists, Winter instruments have become a byword for high precision and reliability.  Maximum emphasis is placed on dependable service in the after-sales inspection and overhaul of the instruments. 

Company Overview Video

This page will give you an overview of the range of flight instruments Winter produces.  

Special Instrument Dial Colors
In addition to the standard and classy white on black instrument dials, Winter offers light ivory and anodized aluminum colors an option for many of their instruments.  The light ivory dials (with black markings and red and black pointers) give the instruments a classic look that looks fantastic in vintage sailplanes.  Below is a photo of the ivory dials installed in the panel of a Spalinger sailplane that is being worked on by Mike Redman at RAW Fabrication, LLC.  Click on the image to view a larger version. There is a $80 extra charge for the ivory dials for most instruments, and $50 for the W-1115 QM III bank indicator shown in the bottom center of the photo.  The upgrade part number is W-8028.

Special Instrument Dial Colors
Standard
White markings
and pointers on a
black anodized background
Black markings and
red and black pointers on a
light ivory background
Black markings and
red and black pointers on an
anodized aluminum background

Winter Catalog
The latest Winter catalog is available here:
http://www.winter-instruments.de/data/winter_Instruments.pdf

Installation and Maintenance Manuals
Manual-5StV-Variometers.pdf
Manual-7FMS-57mm-Airspeed-Indicators.pdf
Manual-6FMS-80mm-Airspeed-Indicators.pdf
Manual-4FGH2040-57mm-Altimeters.pdf
Manual-4FGH10-80mm-Altimeters.pdf


How to Order
To order a product, click on the
button next to the product. 
When you are ready to complete your order, click on the
button. 
Click on the small images to view larger versions.

Part # Description Photo
(Click on images below to view large versions)

Price

Lead-time
Slip/Skid Indicators
W-1110 Ball Bank Indicator, Model: QM I
Fits in a 57 mm (2 1/4") instrument hole.  See drawing at right for dimensions.
Whenever there is no turn and bank indicator, it is advisable to install a bank indicator.  This simple instrument is particularly useful in training aircraft.

Note: There is a small bubble inside the glass tube.  There is a small space for the bubble to hide on the right end of the tube.  If you see the bubble then simply tilt the unit to the left until the bubble goes "home".

$65 In Stock
W-1115 Ball Bank Indicator, Model: QM III
This version is mounted in a case that fits into a standard 57 mm (2 1/4") instrument hole.  See drawing at right for dimensions.
Whenever there is no turn and bank indicator, it is advisable to install a bank indicator.  This simple instrument is particularly useful in training aircraft.

Note: There is a small bubble inside the glass tube.  There is a small space for the bubble to hide on the right end of the tube.  If you see the bubble then simply tilt the unit to the left until the bubble goes "home".

$79 In Stock
W-1120 Ball Bank Indicator, Model: QM II
See drawing at right for dimensions.
Whenever there is no turn and bank indicator, it is advisable to install a bank indicator.  This simple instrument is particularly useful in training aircraft.

Note: There is a small bubble inside the glass tube.  There is a small space for the bubble to hide on the right end of the tube.  If you see the bubble then simply tilt the unit to the left until the bubble goes "home".

$65 In Stock
 
Watch
W-1800 Watch, Winter, by Renée Gerove
This nice watch is a great conversation starter. It features the Winter logo and a nice image of a glider. I wear mine often. It is neat to be able to point to the glider image when describing to my friends what I do for fun.  I would describe the watch as a medium quality watch - as reflected by the price.

Whoever sits in the cockpit knows – precision becomes a passion. The high-quality wrist watch is made by the well known manufacturer Renée Gerove who has produced clocks for more than 30 years. The fashionable noble-steel-casing is provided with a high-quality Swiss quartz-work. With unscratchable mineral-glass and noble leather bracelet. Special edition for our customers.  You can see other watches by Renée Gerove on their web site here:
http://www.renee-gerove.de

Battery
The watch uses a standard 377 battery.  Mine came with a Sony SR626SW battery which is also sometimes referred to as a 377 battery.  I replaced it with an Energizer 377 battery.  The back can be popped-off somewhat easily, but a tool is required to close it.  I have the proper tools here and can replace the battery for you for $30.  The battery should last several years.  As with any watch purchased in any store, it is unknown how new the battery will be when you purchase the watch.  It may have been on the shelf at Winter or my office for several months.  If the battery dies within 6 months of purchasing the watch from me, I'll replace it for free - as long as you pay to ship the watch to me. 

$99 In Stock
 
Flight Hours Counters
W-1500 FSZMD, Flying Hours Counter, Digital
Winter flying hours counters are installed wherever actual flying time has to be recorded, primarily a consideration in training and charter aircraft, although this instrument should also be installed in aircraft operated by clubs or by private individuals, where it permits a check of inspection intervals to be kept.

The flying hours counter has an digital display which displays in hours. It is connected to the aircraft’s total pressure sensor (pitot) and automatically switches on when airspeed increases to 60 km/h. This ensures that actual flying time only is recorded, while secondary times for take off and landing are ignored.

Once installed, the plug can be sealed to prevent tampering.

Fits in a 57 mm (2 1/4") instrument hole.  See drawing at right for dimensions.
T tubing connector included
Power Input Required: 12 to 24 VDC, 2 to 4 mA
  $434 In Stock
W-1510 FSZM, Flying Hours Counter, Analog
Winter flying hours counters are installed wherever actual flying time has to be recorded, primarily a consideration in training and charter aircraft, although this instrument should also be installed in aircraft operated by clubs or by private individuals, where it permits a check of inspection intervals to be kept.

The flying hours counter has an electrically driven counter mechanism and the readings are in hours and minutes. It is connected to the aircraft’s total pressure sensor (pitot) and automatically switches on when airspeed increases to 60 km/h. This ensures that actual flying time only is recorded, while secondary times for take off and landing are ignored.

Once installed, the plug can be sealed to prevent tampering.

Fits in a 57 mm (2 1/4") instrument hole.  See drawing at right for dimensions.
T tubing connector included
Power Input Required: 12 to 24 VDC, 20 mA
  $434 In Stock
 
MacCready Rings
MacCready Rings
The MacCready type ring is an indispensable aid in cross-country soaring.  The ring is rotatable and is marked with speeds and a white triangle.  The chief use of the MacCready ring is to achieve the highest possible cruising speed (average cross-country flying speed) on thermal cross-country flights.  This involves setting the white arrow to the anticipated rate of climb for the next thermal.  Optimum flight performance is assured when the airspeed indicated by the airspeed indicator corresponds to the preselected flying speed to which the MacCready ring has been set.  The MacCready ring allows gliding distance and final approach  to be optimized.  Please refer to relevant literature for further details.  When ordering, please do not forget to state the type of aircraft in which the ring will be used.  If the ring is retrofitted to a variometer of older design, the original threaded ring of the instrument must be removed and replaced by a grooved threaded ring onto which the MacCready ring can be fixed with ease.  Rings are available in blank and pre-labeled versions. 
W-5000 MacCready Ring, 80 mm, unmarked, with bezel-ring
The MacCready type ring is an indispensable aid in cross-country soaring.  The ring is rotatable and is marked with speeds and a white triangle.  The chief use of the MacCready ring is to achieve the highest possible cruising speed (average cross-country flying speed) on thermal cross-country flights.  This involves setting the white arrow to the anticipated rate of climb for the next thermal.  Optimum flight performance is assured when the airspeed indicated by the airspeed indicator corresponds to the preselected flying speed to which the MacCready ring has been set.  The MacCready ring allows gliding distance and final approach  to be optimized.  Please refer to relevant literature for further details.  When ordering, please do not forget to state the type of aircraft in which the ring will be used.  If the ring is retrofitted to a variometer of older design, the original threaded ring of the instrument must be removed and replaced by a grooved threaded ring onto which the MacCready ring can be fixed with ease.
This model comes with an unmarked ring that you can mark to match the polar of your glider.
Variometer not included.
  $68 In Stock
W-5002 MacCready Ring, 80 mm, custom labeled for your glider, with bezel-ring
The MacCready type ring is an indispensable aid in cross-country soaring.  The ring is rotatable and is marked with speeds and a white triangle.  The chief use of the MacCready ring is to achieve the highest possible cruising speed (average cross-country flying speed) on thermal cross-country flights.  This involves setting the white arrow to the anticipated rate of climb for the next thermal.  Optimum flight performance is assured when the airspeed indicated by the airspeed indicator corresponds to the preselected flying speed to which the MacCready ring has been set.  The MacCready ring allows gliding distance and final approach  to be optimized.  Please refer to relevant literature for further details.  When ordering, please do not forget to state the type of aircraft in which the ring will be used.  If the ring is retrofitted to a variometer of older design, the original threaded ring of the instrument must be removed and replaced by a grooved threaded ring onto which the MacCready ring can be fixed with ease.
Variometer not included.
When you place the online order you will need to select from the following options:
  • Glider Make and Model
  • Units for the speed-to-fly markings on the ring (knots, mph, km/hr)
  • Units and range of the vario dial (+/- 10 knots, or +/- 1000 ft/min, or +/- 5 m/s, or...?)
  $106 3 weeks
W-5010 MacCready Ring, 57 mm, unmarked, with bezel-ring
The MacCready type ring is an indispensable aid in cross-country soaring.  The ring is rotatable and is marked with speeds and a white triangle.  The chief use of the MacCready ring is to achieve the highest possible cruising speed (average cross-country flying speed) on thermal cross-country flights.  This involves setting the white arrow to the anticipated rate of climb for the next thermal.  Optimum flight performance is assured when the airspeed indicated by the airspeed indicator corresponds to the preselected flying speed to which the MacCready ring has been set.  The MacCready ring allows gliding distance and final approach  to be optimized.  Please refer to relevant literature for further details.  When ordering, please do not forget to state the type of aircraft in which the ring will be used.  If the ring is retrofitted to a variometer of older design, the original threaded ring of the instrument must be removed and replaced by a grooved threaded ring onto which the MacCready ring can be fixed with ease.
Variometer not included.
   $68 In Stock
W-5012 MacCready Ring, 57 mm, custom labeled for your glider, with bezel-ring
The MacCready type ring is an indispensable aid in cross-country soaring.  The ring is rotatable and is marked with speeds and a white triangle.  The chief use of the MacCready ring is to achieve the highest possible cruising speed (average cross-country flying speed) on thermal cross-country flights.  This involves setting the white arrow to the anticipated rate of climb for the next thermal.  Optimum flight performance is assured when the airspeed indicated by the airspeed indicator corresponds to the preselected flying speed to which the MacCready ring has been set.  The MacCready ring allows gliding distance and final approach  to be optimized.  Please refer to relevant literature for further details.  When ordering, please do not forget to state the type of aircraft in which the ring will be used.  If the ring is retrofitted to a variometer of older design, the original threaded ring of the instrument must be removed and replaced by a grooved threaded ring onto which the MacCready ring can be fixed with ease.
Variometer not included.
When you place the online order you will need to select from the following options:
  • Glider Type
  • Units for the speed-to-fly markings on the ring (knots, mph, km/hr)
  • Units and range of the vario dial (+/- 10 knots, or +/- 1000 ft/min, or +/- 5 m/s, or...?)
   $106 In Stock
MCRing304CZ-17m Winter MacCready Ring for 304 CZ-17m, 57mm - Sale

I'm not sure how I ended up with this extra ring, but I don't need it. It is designed for use on a standard 57 mm Winter W-5453 variometer in knots. It does not include a bezel ring, but they are available if necessary. Most Winter variometers made in recent years already include the necessary grooved bezel ring. A set like this one normally sells for $83. I am selling it for $45.

The MacCready type ring is an indispensable aid in cross-country soaring.  The ring is rotatable and is marked with speeds and a white triangle.  The chief use of the MacCready ring is to achieve the highest possible cruising speed (average cross-country flying speed) on thermal cross-country flights.  This involves setting the white arrow to the anticipated rate of climb for the next thermal.  Optimum flight performance is assured when the airspeed indicated by the airspeed indicator corresponds to the preselected flying speed to which the MacCready ring has been set.  The MacCready ring allows gliding distance and final approach  to be optimized.  Please refer to relevant literature for further details.  When ordering, please do not forget to state the type of aircraft in which the ring will be used.  If the ring is retrofitted to a variometer of older design, the original threaded ring of the instrument must be removed and replaced by a grooved threaded ring onto which the MacCready ring can be fixed with ease.

$45 In Stock
 
Variometers
Variometers
Vane type variometers measure the change in air pressure inherent to changes in altitude.  The instrument consists of a cylindrical chamber with a precision-ft baffle plate (vane) rotating on shockproof jewel bearings and centered by a coil spring.  The vane divides the chamber in two: one section is open to static pressure, while the other is connected to an expansion tank in which a volume of air is insulated against thermal effects.  Differences in pressure are compensated by the narrow gap between vane and chamber wall.  There is a change in static pressure when the aircraft climbs or descends, and a differential pressure is established between the two sections of the chamber.  The resultant deflection of the vane provides a measure of the vertical speed and this deflection is transferred to the pointer of the instrument.  The response rate of a variometer is important.  In high-performance gliding, thermals can be identified all the quicker and used all the more efficiently if the variometer responds without delay.

Defined as the length of time the instrument takes to reach 65% of its final reading in response to a sudden change in vertical speed, the time constant serves as a standard for gauging speed of response.  The faster a variometer responds, the smaller its time constant will be.

Vane type variometers with large measuring ranges such as the 5 StV 5 (± 20 knots and ± 30 knots) have small time constants.  The volume of the expansion tank must be increased in order to achieve comparable figures with variometers having the most common measuring range (± 10 knots).

Winter Variometers Details Table
The Winter Variometer Details Table contains a list of all the available variometers from Winter.  Details such as weight, response time, etc. are included for each vario.  Winter variometers come in a wide variety of flavors.  I stock the most commonly used units which are highlighted in the table and included in the price list below.  But I can get any unit you desire.  Below is a list of options.

  • Ranges/Units
    •  ±10 knots
    • ±1000 ft/m
    • ±2 m/s
    • ±5 m/s
    • ±10 m/s
  • Scale Type
    • Linear - standard
    • Logarithmic - for more needle movement at weak lift and sink (0.90 L capacity flask)
  • Size
    • 80 mm (3 1/8")
    • 57 mm (2 1/4")
  • Response Speed
    • Standard - 3 second (0.45 L capacity flask)
    • Fast ("Sensitive") - 1.8 second (0.90 L capacity flask)
  • MacCready Ring
W-5251 Mechanical Variometer, Vane Type, Model: 5 StV 5
  • 80 mm (3 1/8")
  • ±5 m/s
  • 3 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  The variometer is the most valuable aid on all types of aircraft for pilots whishing to fully exploit the prevailing thermal conditions.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Shock-resistant
Weight: 0.220 kg (7.8 oz), Weight with W-9014 0.45 L capacity flask: 0.4 kg (14 oz)
Includes W-9014 0.45 L Capacity Flask
Manual-5StV-Variometers.pdf

$616 6 Weeks
W-5252 Mechanical Variometer, Vane Type, Model: 5 StV 5-2
  • 80 mm (3 1/8")
  • ±1000 ft/min
  • 3 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  The variometer is the most valuable aid on all types of aircraft for pilots whishing to fully exploit the prevailing thermal conditions.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Shock-resistant
Weight: 0.220 kg (7.8 oz), Weight with W-9014 0.45 L capacity flask: 0.4 kg (14 oz)
Includes W-9014 0.45 L Capacity Flask
Manual-5StV-Variometers.pdf

$616 In Stock
W-5253 Mechanical Variometer, Vane Type, Model: 5 StV 5-3 - Most Popular
  • 80 mm (3 1/8")
  • ±10 knots
  • 3 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions.
Weight: 0.220 kg (7.8 oz), Weight with W-9014 0.45 L capacity flask: 0.4 kg (14 oz)
Includes W-9014 0.45 L Capacity Flask
Manual-5StV-Variometers.pdf

$616 In Stock
W-5282 Mechanical Variometer, Vane Type, Model: 5 StV 5-2 "S" - Sensitive
  • 80 mm (3 1/8")
  • ±1000 ft/min
  • 1.8 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  By using double the capacity used with the standard vario, this unit offers nearly twice as fast a response time.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

$630 In Stock
W-5283 Mechanical Variometer, Vane Type, Model: 5 StV 5-3 "S" - Sensitive
  • 80 mm (3 1/8")
  • ±10 knots
  • 1.8 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  By using double the capacity used with the standard vario, this unit offers nearly twice as fast a response time.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

$630 In Stock
W-5352 Mechanical Variometer, Vane Type, Model: 5 StVL 5-2 - Logarithmic Scale - Sensitive
  • 80 mm (3 1/8")
  • ±1000 ft/min
  • Logarithmic scale
  • 1.6 second response time

Application
With its logarithmic scale, the 5 StVL combines the advantages of a precision variometer with those of a standard variometer.  In the precision range from 0 to ±200 ft/min the graduations are equal to 20 ft/min.  From ±200 ft/min to the end of the scale the instrument is a standard variometer.  The needle travels farther in the low lift/sink range than in high lift/sink range - giving you more information when you need it in weak lift.
Note: Since the scale is not linear, this variometer cannot be used with a MacCready ring.
Technical Data
Same as the 5 StV vane type variometer, Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

$693 6 Weeks
W-5353 Mechanical Variometer, Vane Type, Model: 5 StVL 5-3 - Logarithmic Scale - Sensitive
  • 80 mm (3 1/8")
  • ±10 knots
  • Logarithmic scale
  • 1.6 second response time

Application
With its logarithmic scale, the 5 StVL combines the advantages of a precision variometer with those of a standard variometer.  In the precision range from 0 to ±2 knots the graduations are equal to 0.2 knots.  From ±2 knots to the end of the scale the instrument is a standard variometer.  The needle travels farther in the low lift/sink range than in high lift/sink range - giving you more information when you need it in weak lift.
Note: Since the scale is not linear, this variometer cannot be used with a MacCready ring.
Technical Data
Same as the 5 StV vane type variometer, Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

$693 In Stock
W-5451 Mechanical Variometer, Vane Type, Model: 5 StVM 5
  • 57 mm (2 1/4")
  • ±5 m/s
  • 3 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  The variometer is the most valuable aid on all types of aircraft for pilots whishing to fully exploit the prevailing thermal conditions.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Shock-resistant
Weight: 0.220 kg (7.8 oz), Weight with W-9014 0.45 L capacity flask: 0.4 kg (14 oz)
Includes W-9014 0.45 L Capacity Flask
Manual-5StV-Variometers.pdf

$616 6 Weeks
W-5452 Mechanical Variometer, Vane Type, Model: 5 StVM 5-2
  • 57 mm (2 1/4")
  • ±1000 ft/min
  • 3 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  The variometer is the most valuable aid on all types of aircraft for pilots whishing to fully exploit the prevailing thermal conditions.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Shock-resistant
Weight: 0.220 kg (7.8 oz), Weight with W-9014 0.45 L capacity flask: 0.4 kg (14 oz)
Includes W-9014 0.45 L Capacity Flask
Manual-5StV-Variometers.pdf

$616 In Stock
W-5453 Mechanical Variometer, Vane Type, Model: 5 StVM 5-3 - Most Popular
  • 57 mm (2 1/4")
  • ±10 knots,
  • 3 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  The variometer is the most valuable aid on all types of aircraft for pilots whishing to fully exploit the prevailing thermal conditions.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Shock-resistant
Weight: 0.220 kg (7.8 oz), Weight with W-9014 0.45 L capacity flask: 0.4 kg (14 oz)
Includes W-9014 0.45 L Capacity Flask
Manual-5StV-Variometers.pdf

$616 In Stock
W-5482 Mechanical Variometer, Vane Type, Model: 5 StVM 5-2 "S" - Sensitive
  • 57 mm (2 1/4")
  • ±1000 ft/min
  • 1.8 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  By using double the capacity used with the standard vario, this unit offers nearly twice as fast a response time.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

$630 6 Weeks
W-5483 Mechanical Variometer, Vane Type, Model: 5 StVM 5-3 "S" - Sensitive
  • 57 mm (2 1/4")
  • ±10 knots
  • 1.8 second response time

Application
Indicates the aircraft's vertical speed (rate of climb, rate of descent).  By using double the capacity used with the standard vario, this unit offers nearly twice as fast a response time.  This variometer has a linear dial calibration so that it can be used with a MacCready ring (see below). 
Technical Data
Black plastic housing, See scale drawing at right for installation dimensions. Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

$630 In Stock
W-5552 Mechanical Variometer, Vane Type, Model: 5 StVLM 5-2 - Logarithmic Scale - Sensitive
  • 57 mm (2 1/4")
  • ±1000 ft/min
  • Logarithmic scale
  • 1.6 second response time

Application
With its logarithmic scale, the 5 StVL combines the advantages of a precision variometer with those of a standard variometer.  In the precision range from 0 to ±200 ft/min the graduations are equal to 20 ft/min.  From ±200 ft/min to the end of the scale the instrument is a standard variometer.  The needle travels farther in the low lift/sink range than in high lift/sink range - giving you more information when you need it in weak lift.
Note: Since the scale is not linear, this variometer cannot be used with a MacCready ring.
Technical Data
Same as the 5 StV vane type variometer, Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

  $693 6 Weeks
W-5553 Mechanical Variometer, Vane Type, Model: 5 StVLM 5-3 - Logarithmic Scale - Sensitive
  • 57 mm (2 1/4")
  • ±10 knots
  • Logarithmic scale
  • 1.6 second response time

Application
With its logarithmic scale, the 5 StVL combines the advantages of a precision variometer with those of a standard variometer.  In the precision range from 0 to ±200 ft/min the graduations are equal to 20 ft/min.  From ±200 ft/min to the end of the scale the instrument is a standard variometer.  The needle travels farther in the low lift/sink range than in high lift/sink range - giving you more information when you need it in weak lift.
Note: Since the scale is not linear, this variometer cannot be used with a MacCready ring.
Technical Data
Same as the 5 StV vane type variometer, Requires the use of a W-9015 0.90 L Capacity Flask or 2 x W-9014 0.45 L Capacity Flasks
Weight: 0.220 kg (7.8 oz), weight with W-9015 0.90 L capacity flask: 0.51 kg (1.12 lb)
Includes W-9015 0.90 L Capacity Flask
Manual-5StV-Variometers.pdf

  $693 In Stock
 
Großkinsky - Variable-Camberflap Rings
Großkinsky - Variable-Camberflap Rings
Application
As is generally known, wing load and, in turn, the optimum flap positions for the varios speed ranges of a variable-flap glider changes with take-of weight.  Until now, selecting the right flap position has involved using special tables carried on board or observing a confusingly large number of marks on the airspeed indicator.  The new adjustable ring for airspeed indicators makes these complicated methods things of the past.

Features
As the illustration shows, the ring has a double scale for aircraft weight "G": and wing loading "G/F".  Four arrows can also be seen, showing the corresponding angles for the flap positions.  The number of arrows depends on the number of flap positions for the type of glider in question.  Like the MacCready ring of the variometer, the rotatable ring is simply push-fitted onto the airspeed indicator.

Use
One the take-off weight has been calculated by adding the empty weight of the aircraft, the weight of the pilot and the weight of any water ballast on board, the "G" scale is simply turned until this figure is aligned with the 0 mark on the airspeed indicator.  The arrows on the ring now automatically show the correct flap positions on the airspeed indicator scale.  Furthermore, the correct wing load for the take-off weight can be read from the "G/F" scale and entered in an electronic variometer or flight computer, if fitted.  If wing load changes in the course of the flight, due to a reduction in ballast, for example, the ring need only be turned back to the new flying weight, and immediately, the arrows show the new, flight-dependent flap positions.  The ring is calibrated for a standard preset acceleration of 1 g.  If values as high as 1.2 g should occur, as they do in high-performance competition gliding, a second ring with the appropriate values can be fitted during the flight, or changed as required.  If the  Großkinsky ring is not ordered along with a new airspeed indicator, please send us a digital photo of the airspeed indicator and state the type of aircraft in which it is installed, because the scales vary from model to model.  Only the 6 FMS 4 or 7 FMS 4 series airspeed indicators with 510° scales are suitable.

W-6001 Großkinsky - Variable-Camberflap Ring, 80 mm
Application
As is generally known, wing load and, in turn, the optimum flap positions for the varios speed ranges of a variable-flap glider changes with take-of weight.  Until now, selecting the right flap position has involved using special tables carried on board or observing a confusingly large number of marks on the airspeed indicator.  The new adjustable ring for airspeed indicators makes these complicated methods things of the past.

Features
As the illustration shows, the ring has a double scale for aircraft weight "G": and wing loading "G/F".  Four arrows can also be seen, showing the corresponding angles for the flap positions.  The number of arrows depends on the number of flap positions for the type of glider in question.  Like the MacCready ring of the variometer, the rotatable ring is simply push-fitted onto the airspeed indicator.

Use
One the take-off weight has been calculated by adding the empty weight of the aircraft, the weight of the pilot and the weight of any water ballast on board, the "G" scale is simply turned until this figure is aligned with the 0 mark on the airspeed indicator.  The arrows on the ring now automatically show the correct flap positions on the airspeed indicator scale.  Furthermore, the correct wing load for the take-off weight can be read from the "G/F" scale and entered in an electronic variometer or flight computer, if fitted.  If wing load changes in the course of the flight, due to a reduction in ballast, for example, the ring need only be turned back to the new flying weight, and immediately, the arrows show the new, flight-dependent flap positions.  The ring is calibrated for a standard preset acceleration of 1 g.  If values as high as 1.2 g should occur, as they do in high-performance competition gliding, a second ring with the appropriate values can be fitted during the flight, or changed as required.  If the  Großkinsky ring is not ordered along with a new airspeed indicator, please send us the airspeed indicator and state the type of aircraft in which it is installed, because the scales vary from model to model.  Only the 6 FMS 4 or 7 FMS 4 series airspeed indicators with 510° scales are suitable.
Note: Airspeed indicator not included.

If the  Großkinsky ring is not ordered along with a new airspeed indicator, please send us a digital photo of the airspeed indicator and state the type of aircraft in which it is installed, because the scales vary from model to model. 

$156 6 Weeks
W-7001 Großkinsky - Variable-Camberflap Ring, 57 mm
Application
As is generally known, wing load and, in turn, the optimum flap positions for the varios speed ranges of a variable-flap glider changes with take-of weight.  Until now, selecting the right flap position has involved using special tables carried on board or observing a confusingly large number of marks on the airspeed indicator.  The new adjustable ring for airspeed indicators makes these complicated methods things of the past.

Features
As the illustration shows, the ring has a double scale for aircraft weight "G": and wing loading "G/F".  Four arrows can also be seen, showing the corresponding angles for the flap positions.  The number of arrows depends on the number of flap positions for the type of glider in question.  Like the MacCready ring of the variometer, the rotateable ring is simply push-fitted onto the airspeed indicator.

Use
One the take-off weight has been calculated by adding the empty weight of the aircraft, the weight of the pilot and the weight of any water ballast on board, the "G" scale is simply turned until this figure is aligned with the 0 mark on the airspeed indicator.  The arrows on the ring now automatically show the correct flap positions on the airspeed indicator scale.  Furthermore, the correct wing load for the take-off weight can be read from the "G/F" scale and entered in an electronic variometer or flight computer, if fitted.  If wing load changes in the course of the flight, due to a reduction in ballast, for example, the ring need only be turned back to the new flying weight, and immediately, the arrows show the new, flight-dependent flap positions.  The ring is calibrated for a standard preset acceleration of 1 g.  If values as high as 1.2 g should occur, as they do in high-performance competition gliding, a second ring with the appropriate values can be fitted during the flight, or changed as required.  If the  Großkinsky ring is not ordered along with a new airspeed indicator, please send us the airspeed indicator and state the type of aircraft in which it is installed, because the scales vary from model to model.  Only the 6 FMS 4 or 7 FMS 4 series airspeed indicators with 510° scales are suitable.
Note: Airspeed indicator not included.

Note: The photo at right shows an 80 mm ring rather than a 57 mm ring.

If the  Großkinsky ring is not ordered along with a new airspeed indicator, please send us a digital photo of the airspeed indicator and state the type of aircraft in which it is installed, because the scales vary from model to model. 

$156 6 Weeks
 
Airspeed Indicator Operating Range Stickers
W-6003-57mm Airspeed Indicator Operating Range Stickers - 57mm
From Winter in Germany
For use in Winter airspeed indicators in the 57 mm size

Diameter of the rings: 45 mm

Includes:

  • Yellow Ring
  • Green Ring
  • White Ring
  • Yellow Triangle (for approach speed)
  • Red Line
$4.95 In Stock
W-6003-80mm Airspeed Indicator Operating Range Stickers - 80mm
From Winter in Germany
For use in Winter airspeed indicators in the 80 mm size

Diameter of the rings: 58 mm

Includes:

  • Yellow Ring
  • Green Ring
  • White Ring
  • Yellow Triangle (for approach speed)
  • Red Line
$4.95 In Stock
OpRangeStickers-USA Airspeed Indicator Operating Range Stickers - USA
Made in the USA - Not From Winter

Approximate diameter of ring segments: 65 mm

$5.95 In Stock
 
Pitot Tubes & Pressure Sensors
W-6011 6 SR, Pitot/Static Tube (Prandtl Tube) with Right-Angle Mount
The pitot pressure input is at the tip of the tube and the static ports are slots on the side of the tube. The mounting arm has a hole and a slot to use for mounting it to the aircraft.

For use with 5 mm I.D. (internal diameter) tubing (see W-9001), Also works with 3/16 inch I.D. tubing.

Material: Stainless Steel

Dimensions
Length of Head: 150 mm (5.9 in)
Diameter of Head: 16 mm (0.63 in)
Length of Mounting Arm: 245 mm (9.6 in)
Length from bottom of Prandtl tube to center of top mounting hole: 175 mm (6.9 in)
Weight: 227 g (8 ounces)

Ports: Stat. Druck (Static Port), Messdruck (Pitot Port),

$155 In Stock
W-6012 6 SRG, Pitot/Static Tube (Prandtl Tube)
The pitot pressure input is at the tip of the tube and the static ports are slots on the side of the tube.

For use with 5 mm I.D. (internal diameter) tubing (see W-9001), Also works with 3/16 inch I.D. tubing.

Material: Stainless Steel

Dimensions
Length of Head: 222 mm (8.74 in)
Diameter of Head: 16 mm (0.63 in)
Weight: 91 g (3.2 ounces)

Ports: Stat. Druck (Static Port), Messdruck (Pitot Port),

$145 In Stock
W-6014 6 DSD Static Pressure Sensor Pair
1 pair of static pressure sensors with mounting screws and nuts

It is common practice to install a pitot tube in the nose of a glider to measure total pressure, along with two pressure sensors (this item), one on each side of the fuselage, to measure static pressure.  The static pressure sensors must be installed at points where the airstream flowing past the fuselage does not cause any disturbance.

For use with 5 mm I.D. (internal diameter) tubing (see W-9001), Also works with 3/16 inch I.D. tubing.

Material: Stainless Steel

Dimensions
Diameter of round plate: 35 mm (1.38 in)
Weight for 1 pair: 62 g (2.2 ounces)

Ports: Stat. Druck (Static Port)

$60 In Stock
 
Airspeed Indicators
Airspeed Indicators
Airspeed indicators measure the difference between total pressure and static pressure.  The total (or measured) pressure is sensed by a pitot tube positioned at the stagnation point of the airstream and is carried to the airspeed indicator by a hose.  A static pressure sensor can also be connected.  The measuring element is an open diaphragm unit with excellent elastic properties; hysteresis (differences between advance and return movement) and secondary elastic effects are negligible.  The total pressure and static pressure act on the diaphragm, causing a deformation that is transferred to the pointer by a linkage and gear mechanism.  The different operating ranges of the aircraft can be identified by color markings on the airspeed indicator dial; e. g. green for normal operating range, yellow for caution, white for flaps down and red for maximum speed.  The instruments are insensitive to shock and vibration.

Winter Airspeed Indicators Details Table
The Winter Airspeed Indicator Details Table contains a list of all the available airspeed indicators from Winter.  Details such as weight, speed range, etc. are included for each unit.  I stock the most commonly used units which are highlighted in the table and included in the price list below.  But I can get any unit you desire.  Below is a list of options.

  • Units
    • Knots (standard)
    • Mph
    • km/h
  • Size
    • 80 mm (3 1/8")
    • 57 mm (2 1/4")
  • Speed Range
    • 0 to 100, 140, 160, 200, 220, or 250 knots
    • 0 to 120, 160, 180, 220, 250, or 280 mph
    • 0 to 200, 250, 300, 350, 400, or 450 km/h
  • Single or Multiple Revolutions
    • 510° - standard, needle swings more than 1 turn to give more resolution.  Very popular in sailplanes.
    • 360° - single turn, easier to read, but less resolution.
  • Zero Point
    • 12 o'clock, standard on non-metric models
    • 6 o'clock, standard on km/h units
  • Operation Range Markings
  • Großkinsky - Variable-Camberflap Ring
    • Optional ring which displays the recommended flap setting for defined airspeed ranges and is adjustable for wing loading. See the W-6001 and W-7001 above.
W-6212 Airspeed Indicator, Model 6 FMS 212 - Popular with Schweizer Sailplane Owners
  • 80 mm (3 1/8")
  • Range: 0 to 120 mph
  • 360° (1 revolution) needle swing
  • zero at 12 o'clock

Application
Indicate the speed of the aircraft relative to the surrounding air.  Part of the minimum prescribed instrumentation for any aircraft.
Technical Data
Black plastic housing, White scale on matt black background, See scale drawing at right for installation dimensions, Graduation approximately linear, Available with dual scale (km/h and knots) on request.
Weight: 0.205 kg (7.2 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-6FMS-80mm-Airspeed-Indicators.pdf

W-6213 (0 to 100 mph)
shown in photo

$448 In Stock
W-6422 Airspeed Indicator, Model: 6 FMS 422
  • 80 mm (3 1/8")
  • Range: 0 to 180 mph
  • 510° needle swing
  • zero at 12 o'clock

Application
Developed especially for gliding, the instrument shows airspeed on a 510° spiral scale.  Graduations for low and average speeds are greatly enlarged in order to permit speeds in the ranges of primary interest to be read accurately and with ease.
Technical Data
Black plastic housing, white scale on matt black background, see scale drawing at right for installation dimensions
Weight: 0.205 kg (7.2 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-6FMS-80mm-Airspeed-Indicators.pdf

W-6421 (0 to 300 kph)
shown in photo

$490 6 Weeks
W-6423 Airspeed Indicator, Model: 6 FMS 423 - Most Popular
  • 80 mm (3 1/8")
  • Range: 0 to 160 knots
  • 510° needle swing
  • zero at 12 o'clock

Application
Developed especially for gliding, the instrument shows airspeed on a 510° spiral scale.  Graduations for low and average speeds are greatly enlarged in order to permit speeds in the ranges of primary interest to be read accurately and with ease.
Technical Data
Black plastic housing, white scale on matt black background, see scale drawing at right for installation dimensions
Weight: 0.205 kg (7.2 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-6FMS-80mm-Airspeed-Indicators.pdf

W-6421 (0 to 300 kph)
shown in photo

$490 In Stock
W-6512 Airspeed Indicator, Model 6 FMS 512
  • 80 mm (3 1/8")
  • Range: 0 to 180 mph
  • 360° (1 revolution) needle swing
  • zero at 12 o'clock

Application
Indicate the speed of the aircraft relative to the surrounding air.  Part of the minimum prescribed instrumentation for any aircraft.
Technical Data
Black plastic housing, White scale on matt black background, See scale drawing at right for installation dimensions, Graduation approximately linear
Weight: 0.205 kg (7.2 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-6FMS-80mm-Airspeed-Indicators.pdf

W-6213 (0 to 100 mph)
shown in photo

$448 6 Weeks
W-6513 Airspeed Indicator, Model 6 FMS 513
  • 80 mm (3 1/8")
  • Range: 0 to 160 knots
  • 360° (1 revolution) needle swing
  • zero at 12 o'clock

Application
Indicate the speed of the aircraft relative to the surrounding air.  Part of the minimum prescribed instrumentation for any aircraft.
Technical Data
Black plastic housing, White scale on matt black background, See scale drawing at right for installation dimensions, Graduation approximately linear, Available with dual scale (km/h and knots) on request.
Weight: 0.205 kg (7.2 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-6FMS-80mm-Airspeed-Indicators.pdf

W-6213 (0 to 100 mph)
shown in photo

$448 In Stock
W-7422 Airspeed Indicator, Model: 7 FMS 422
  • 57 mm (2 1/4")
  • Range: 0 to 180 mph
  • 510° needle swing
  • zero at 12 o'clock

Application
Developed especially for gliding, the instrument shows airspeed on a 510° spiral scale.  Graduations for low and average speeds are greatly enlarged in order to permit speeds in the ranges of primary interest to be read accurately and with ease.
Technical Data
Black plastic housing, white scale on matt black background, see scale drawing at right for installation dimensions
Weight: 0.075 kg (2.6 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-7FMS-57mm-Airspeed-Indicators.pdf

W-7421 (0 to 300 kph)
shown in photo

$490 6 Weeks
W-7423 Airspeed Indicator, Model: 7 FMS 423 - Most Popular
  • 57 mm (2 1/4")
  • Range: 0 to 160 knots
  • 510° needle swing
  • zero at 12 o'clock

Application
Developed especially for gliding, the instrument shows airspeed on a 510° spiral scale.  Graduations for low and average speeds are greatly enlarged in order to permit speeds in the ranges of primary interest to be read accurately and with ease.
Technical Data
Black plastic housing, white scale on matt black background, see scale drawing at right for installation dimensions
Weight: 0.075 kg (2.6 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-7FMS-57mm-Airspeed-Indicators.pdf

W-7421 (0 to 300 kph)
shown in photo

$490 In Stock
W-7512 Airspeed Indicator, Model: 7 FMS 512
  • 57 mm (2 1/4")
  • Range: 0 to 180 mph
  • 360° (1 revolution) needle swing
  • zero at 12 o'clock

Application
Indicate the speed of the aircraft relative to the surrounding air.  Part of the minimum prescribed instrumentation for any aircraft.
Technical Data
Black plastic housing, White scale on matt black background, See scale drawing at right for installation dimensions, Graduation approximately linear
Note: The photo at right shows a unit in km/hr - which is different from this unit.
Weight: 0.075 kg (2.6 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-7FMS-57mm-Airspeed-Indicators.pdf

W-7511 (0 to 300 kph)
shown in photo

$448 6 Weeks
W-7513 Airspeed Indicator, Model: 7 FMS 513
  • 57 mm (2 1/4")
  • Range: 0 to 160 knots
  • 360° (1 revolution) needle swing
  • zero at 12 o'clock

Application
Indicate the speed of the aircraft relative to the surrounding air.  Part of the minimum prescribed instrumentation for any aircraft.
Technical Data
Black plastic housing, White scale on matt black background, See scale drawing at right for installation dimensions, Graduation approximately linear
Note: The photo at right shows a unit in km/hr - which is different from this unit.
Weight: 0.075 kg (2.6 oz)

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $30 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Manual-7FMS-57mm-Airspeed-Indicators.pdf

W-7511 (0 to 300 kph)
shown in photo

$448 In Stock
 
Altimeter Scale Rings
Altimeter Scale Rings
Prior to cross-country flight, the altimeter is usually set to field elevation.  Atmospheric pressure reduced to pressure at sea level (QNH pressure) is then indicated from the Kollsman window.  Throughout the flight, the altimeter reads height above sea level.

In many instances, it is also desirable to know one's relative altitude above a defined landmark, as well as height above sea level.  One a final approach, for example, it is essential to know one's height above the landing field at any given time.  Once the arrow on the rotatable scale ring has been set to the elevation of the landing field, altitude above the field can be read off the gradations at any time until touchdown (reading corresponds to the QFE setting).

Further applications include the safe crossing of ground obstacles (mountain ranges) or control zones, cases in which the difference in altitude can be read directly once the ring has been correctly adjusted.  The scale ring has also proved particularly useful for destination approach calculations in performance gliding.  For more information see the W-4011 and W-4022 below.

W-4011 Altimeter Scale Ring, 80 mm
Scale ring for use with 4 FGH 10 altimeters.
Prior to cross-country flight, the altimeter is usually set to field elevation.  Atmospheric pressure reduced to pressure at sea level (QNH pressure) is then indicated from the Kollsman window.  Throughout the flight, the altimeter reads height above sea level.
In many instances, it is also desirable to know one's relative altitude above a defined landmark, as well as height above sea level.  One a final approach, for example, it is essential to know one's height above the landing field at any given time.  Once the arrow on the rotatable scale ring has been set to the elevation of the landing field, altitude above the field can be read off the gradations at any time until touchdown (reading corresponds to the QFE setting).
Further applications include the safe crossing of ground obstacles (mountain ranges) or control zones, cases in which the difference in altitude can be read directly once the ring has been correctly adjusted.  The scale ring has also proved particularly useful for destination approach calculations in performance gliding.

Note: The standard W-4325 altimeter does not accommodate this ring.  However, a specially modified version can be ordered that will work with this scale ring.

  $84 In Stock
W-4022 Altimeter Scale Ring, 57 mm
Scale ring for use with 4 FGH 40 altimeters
Prior to cross-country flight, the altimeter is usually set to field elevation.  Atmospheric pressure reduced to pressure at sea level (QNH pressure) is then indicated from the Kollsman window.  Throughout the flight, the altimeter reads height above sea level.
In many instances, it is also desirable to know one's relative altitude above a defined landmark, as well as height above sea level.  One a final approach, for example, it is essential to know one's height above the landing field at any given time.  Once the arrow on the rotatable scale ring has been set to the elevation of the landing field, altitude above the field can be read off the graduations at any time until touchdown (reading corresponds to the QFE setting).
Further applications include the safe crossing of ground obstacles (mountain ranges) or control zones, cases in which the difference in altitude can be read directly once the ring has been correctly adjusted.  The scale ring has also proved particularly useful for destination approach calculations in performance gliding.
  $84 In Stock
 
Altimeters
Altimeters
Altimeters measure static air pressure, which decreases with altitude.  The pressure-sensitive measuring element is a diaphragm capsule from which the air has been removed (aneroid capsule), which reacts to the effect of changing air pressure as the aircraft changes altitude.  Tempered, aged copper-beryllium diaphragms ensure highly accurate readings.  Diaphragm movement is transmitted to the instrument pointers by a linkage and gearwheels - the entire unit is insensitive to shock and vibration.  A bimetal link compensates the effects of temperature change. 

Features of Winter Altimeters
High measuring precision, temperature compensation, linear dial gauge graduations, insensitive to shock and vibration, simple zero adjustment.

Winter Altimeter Details Table
The Winter Altimeter Details Table contains a list of all the available altimeters from Winter.  Details such as weight, altitude range, etc. are included for each unit.  I stock the most commonly used units which are highlighted in the table and included in the price list below.  But I can get any unit you desire.  Below is a list of options.

  • Units
    • Feet - standard, pressure scale in In (Hg)
    • Meters, pressure scale in mbars
  • Size
    • 80 mm (3 1/8")
    • 57 mm (2 1/4")
  • Range
    • 0 to 3000 m
    • 0 to 6000 m
    • 0 to 1000 to 10,000 m
    • 0 to 20,000 ft
    • 0 to 1000 to 20,000 ft
    • 0 to 3000 to 30,000 ft
  • Zero Point
    • 12 o'clock, standard
    • 6 o'clock
  • Scale Ring
W-4325 Altimeter, Model: 4 FGH 10, 20,000 ft
80 mm (3 1/8"), 3 pointer, , Range: 0 to 1,000 to 20,000 feet, Inch (Hg) pressure scale, zero at 12 o'clock
3-pointer altimeter for measuring absolute and relative altitudes in the 0 to 20,000 ft range.
Indicating range: 0 to 1000 to 20,000 feet
Gradations: large pointer: 10 ft per line, small pointer: 100 feet per line, third pointer: 1000 feet per line
Technical Data
Airtight, black plastic housing.  Connection via hose from static pressure sensor to hose connector at the rear.  Kollsman window with Inch scale from 27.6 to 30.5 inches of Hg.  See scale drawing at right for installation dimensions.  Weight: 0.345 kg (12.2 oz).  360° linear scale. 

Note: The standard W-4325 altimeter does not accommodate the optional W-4011 scale ring.  However, a specially modified version of the altimeter can be ordered that will work with the scale ring.  The price of the special altimeter is the same as a standard altimeter but the scale ring is extra.  You can select the special version when ordering.  When ordering online the price for the special altimeter includes the W-4011 scale ring.
Manual-4FGH10-80mm-Altimeters.pdf

$980 In Stock
W-4555 Altimeter, Model: 4FGH 40
This altimeter is very popular with glider pilots because of its small size. It fits nicely into the small instrument panels found in many sailplanes. It is the only small (57 mm) altimeter for use in a certificated airplane that I am aware of.  However, there may be some compromises due to its small size.  Some pilots find it more difficult to read than other (larger) altimeters.  It seems obvious to me, that the small size would make it more difficult to read, but I have flown with them and I had no problem reading it.  In 2007 Winter changed the 3rd pointer from a short white pointer to a long, thin black pointer with a red colored tip (see photo at right).  That should make the unit easier to interpret in flight. 

Also, the accuracy appears to be less than that of other (larger) altimeters. The Specifications indicate that the altitude error may be as much as +/- 120 feet at 8000 feet - more at higher altitudes.  That doesn't concern or surprise me, but it is good to be aware of it.

Size: 57 mm
(2 1/4"), Range: 0 to 1,000 to 20,000 feet, Inch (Hg) pressure scale, zero at 12 o'clock
3-pointer altimeter for measuring absolute and relative altitudes in the 0 to 20,000 ft range.
Indicating Range: 0 to 1000 to 20,000 feet.
Note: As specified in the Specifications the unit will indicate up to 15,000 m (49,215 feet) without any damage to the altimeter.  But it is calibrated only to 20,000 feet.
Scale graduation: large pointer: 10 feet per line, small pointer: 100 feet per line, third pointer: 1000 feet per line
Technical Data
Airtight, black plastic housing.  Connection via hose from static pressure sensor to hose connector at the rear.  Kollsman window with scale in inches of Hg.  See scale drawing at right for installation dimensions.  Weight: 0.235 kg (8.3 oz).  360° linear scale.  This altimeter can be fitted with a W-4022 scale ring.
Specifications

Manual-4FGH2040-57mm-Altimeters.pdf

  $980 In Stock
 
Tubing, Connectors, and Miscellaneous
W-9001 Tubing
PVC tubing for connecting instruments, transparent, 5 mm inside diameter with 1.5 mm wall thickness.  Pricing is per meter.
$2/m
($0.609/ft)
In Stock
W-9002 Tubing Connector, Straight
metal, nickel plated, A little pricey, but much nicer than the plastic connectors you can buy at any hardware store.  If a plastic connector gets nicked it may leak.  That is not problem with these metal connectors.
$2.00 In Stock
W-9003 Tubing Connector, T
metal, nickel plated, A little pricey, but much nicer than the plastic connectors you can buy at any hardware store.  If a plastic connector gets nicked it may leak.  That is not problem with these metal connectors.
$4.50 In Stock
W-9004 Tubing Connector, +
metal, nickel plated, A little pricey, but much nicer than the plastic connectors you can buy at any hardware store.  If a plastic connector gets nicked it may leak.  That is not problem with these metal connectors.
$4.95 In Stock
W-9005 5-Way Tubing Quick Connector
Hose connections are not usually accessible when an instrument panel is installed or removed.  Winter offers a hose coupling with 5 connectors, to which all the hoses can be connected before the instrument panel is installed.  Once the panel is in position, all that remains is to close the hose coupling.
$55 In Stock
W-9006 Tank for Water Condensation
This is a simple reservoir with 2 hose connectors.  It is used to collect any water that condenses inside the tubing at a low point.  It has a removable cap to facilitate removing the collected water.  This is a great way to keep water from damaging your sensitive soaring instruments.
$22 In Stock
W-9007 Instrument Screw
M4 x 20, black
The same screws supplied by Winter with all their instruments.  Non-magnetic. Aluminum with black coating.  Price is for each screw.
$0.50 In Stock
W-9008 Glass Face Plate for large Winter Instruments
73.5 mm diameter
$1.40 In Stock
W-9009 Glass Face Plate for small Winter Instruments
53 mm diameter
$1.40 In Stock
W-9010 Tool for Bezel Rings
May be used for removing and installing the bezel rings which hold the glass face plate on the instruments.  Adjustable for use with 57 and 80 mm diameter instruments.

Rental Option
If you think you need this tool for only a few days you can rent one for $15 (plus shipping).  I bill your credit card the full price and then give you a partial refund as long as you return the unit in good condition within 20 days.

$41 In Stock
W-9012 O-Ring
70 x 2.5 mm diameter, for ASI and variometer
$0.95 In Stock
W-9013 Knob, For 4 FGH 10 and 4 FGH 20 Altimeters $5.95 In Stock
W-9014 Capacity Flask
0.45 L expansion tank with copperwool filling, for use with standard variometers. 
Logarithmic and "sensitive" varios require a single W-9015 0.9 L capacity flask, or 2 of these 0.45 capacity flasks.
Dimensions: 65 mm (2.56") diameter, 280 mm (11.0") long
Weight: 0.18 kg (6.4 oz)
Note: Capacity flasks are included with all new variometers.
$35 In Stock
W-9015 Capacity Flask
0.90 L expansion tank with copperwool filling, for use with "L" (logarithmic) and "S" (sensitive) varios.
Dimensions: 80 mm (3.15") diameter, 350 mm (13.78") long
Weight: 0.29 kg (10.2 oz)
Note: Capacity flasks are included with all new variometers.
$38 In Stock
W-9031 Bezel ring, Grooved, 80 mm, for use with MacCready ring
Most Winter variometers ship with a beveled bezel ring that does not accommodate a MacCready Ring.  The standard "beveled" bezel ring can be removed (unscrewed) and this "grooved" bezel ring can be screwed onto the front of the variometer.  The MacCready Ring (not included) has several spring-loaded ball bearings that ride in the groove. 
This part is included with the W-5000, W-5002, W-5010 and W-5012 MacCready Rings.
The W-9010 Tool for Bezel Ring is highly recommended for removing and re-mounting the bezel rings.
$5.95 In Stock
W-9031-Bevel Bezel ring, Beveled, 80 mm
This is the standard beveled bezel ring that ships with most Winter Variometers.  It does not accommodate a MacCready Ring.
The W-9010 Tool for Bezel Ring is highly recommended for removing and re-mounting the bezel rings.
  $5.95 In Stock
W-9032 Bezel ring, Grooved, 57 mm, for use with MacCready ring
Most Winter variometers ship with a beveled bezel ring that does not accommodate a MacCready Ring.  The standard "beveled" bezel ring can be removed (unscrewed) and this "grooved" bezel ring can be screwed onto the front of the variometer.  The MacCready Ring (not included) has several spring-loaded ball bearings that ride in the groove. 
This part is included with the W-5000, W-5002, W-5010 and W-5012 MacCready Rings.
The W-9010 Tool for Bezel Ring is highly recommended for removing and re-mounting the bezel rings.
$5.95 In Stock
W-9032-Bevel Bezel ring, Beveled, 57 mm
This is the standard beveled bezel ring that ships with most Winter Variometers.  It does not accommodate a MacCready Ring.
The W-9010 Tool for Bezel Ring is highly recommended for removing and re-mounting the bezel rings.
  $5.95 In Stock

Cumulus Soaring, Inc.
Paul E. Remde

8661 Connelly Place
Savage, Minnesota 55378
USA


Home | Contact | Customer Service | How to Order | Privacy | Technical Support | View Cart


Phone: 1-952-445-9033
FAX: 1-952-445-8954