2007: Centennial of the Helicopter?

[Dave_Jackson]

Mart (Graviman)

Dave, i think the Leishman calcs for helicopter performance stand

I still have doubts.

1. Unquestionably, Leishman is a very knowledgeable Aerodynamicist. However, my previous experience in power transmission equipment probably exceeds his.
2. The Cornu rotor blades are very different from today's conventional blades. The Blade Element Theory, with its recognition of chord and root cutout, is much better than the simple Momentum Theory used by Leishman.
3. The actual HP of the Antoinette engine is an unknown. However, perhaps on the eastern shores of the Atlantic they don't use so much snake-oil in their engines.

Maybe it all has too do with;

French fries ~ Freedom fries
Fur flies