beyond donbt have also been interpreted with the same conclusion, iiut glide on a steep path of 33.2 deg. with a vertical compo- rudder would be just as effective as on the air plane. So of real interest- In spite of numerous flights already made there is a fallacy involved in such reasoning. i, nt… … more than the resistance of a disk normal to the wind, which losses are neglected—and is therefore proportional to the flight is only 60 per cent that calculable on the Newtonian hypoth- square of the slipstream velocity, multiplied by the mass of Breuili. France, tvhere the helicopter covered a…
Aviation Week
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