knots ft/min knots ft/min knots mi feet lb lb 4 Blanik L13 1102 1102 0 0 -0.000117632747926469 0.0314180693345772 -3.25985270250155 143.367797666122 -2399.5746889447 m 80 35 130 -1.6 80 35 120 -1.37 180 -3.6