Airfoil Approach Gross Weight 
Vintage Aviation News
JUNE 18, 2025
Palmer and his team created wooden models of various airfoils, engine cowlings, and tail surfaces in a rented garage before bringing them to Caltech in Pasadena, where they utilized the school’s wind tunnel to test the designs until they were satisfied with the results. Yet Hughes was not free from trouble on this flight either.
Plane and Pilot
OCTOBER 3, 2024
But it was apparent the smallest Grumman flying boat was too small and full of quirks—the cabin door won’t open if the flaps are down, for example—to justify something approaching a direct copy. The airfoil is a Harry Riblett shape, giving modernized flow separation on the leading edge for a soft stall yet with good lift and drag performance.
Plane and Pilot
DECEMBER 16, 2024
For one thing, the F2s fuselage hangs from a completely new wing with two distinct airfoil shapes. An obvious discontinuity leads to a thinner airfoil inboard. Max Gross Weight: 1,320 lbs. Empty Weight: 840 lbs. Wings, Things Major aerodynamic tweaks have been made. Wing Area: 121.6 Length: 22.5 Height: 8.8
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