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Flight Data Systems offers interesting, low cost instruments for use in experimental aircraft.   

Frequently Asked Questions

1. Is the GT-50 TSO'd?

  • No. This helps keep prices down and suitable for the experimental market.

2. What is your warranty policy?

  • Flight Data Systems has a One Year Money Back Guarantee policy. If a customer is not satisfied with the product they may return it within one year from the date of shipment from our facility for a full refund.
  • Flight Data Systems also offers a One Year Warranty on all products. If a product fails within one year from the date of shipment from our facility we will repair it free of charge.

3. Can I install the GT-50 in my type certificated airplane or glider?

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GT-50 GT-50 - G-Meter/Clock/Timer/Flight Timer/Voltmeter
Note: For use in Experimental Aircraft.

Note: The latest version of the GT-50 does not have any internal battery, so the time will be lost when battery power is removed.  That means that glider pilots that remove their battery after every flight will need to reset the clock every time they fly.  However, it is a very nice display and a very good value.

Six Functions!

  • G-Meter:
    • Instantaneous Display to +/- 9 Gs
    • Records Max/Min
  • Flight Timer:
    • Automatically Records Flight Time
  • Clock:
    • 12 or 24 Hour Format
    • Quartz Crystal
  • Timer/Stopwatch
  • Voltmeter
  • Outside Air Temperature (OAT) - requires optional $29 temperature probe (select when ordering)


  • Best G-Meter Value Available
  • Large Display for use in Wide Temperature Range
  • Soft Orange Backlight
  • Automatic Backlight Brightness (The backlight can be disabled to conserver aircraft battery power)
  • Weighs only 4oz. with Batteries Installed

Current Models
GT-50 Manual

OAT Install Manual

Previous Models

GT-50 Manual (No OAT Connection)

GT-50 Manual (Internal Battery Powered)

Power Input: 12 to 28 VDC
Fits 2-1/4" (57 mm) Instrument Hole
Chassis width and Height 2-3/8"
Depth 1-1/4" (behind panel)
Weight 4 oz

Note: Screws are not included by the manufacturer.  Cumulus Soaring, Inc. includes four 6/32 x 1/2" black stainless steel pan head screws for your convenience.  Let us know if we forget to include them.


In Stock

Cumulus Soaring, Inc.
Paul E. Remde

8661 Connelly Place
Savage, Minnesota 55378

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