"Aerofoil" Quotes from Famous Books
 ... aeroplanes are modelled more or less closely on flying animals; the Dunne aeroplane took hints from the zannonia leaf, which, being weighted in front by the seed-pod, and curved back on either side, becomes, as the tips of the leaf wither and curl, a perfectly stable aerofoil for conveying the seed to a distance. The gliding powers of the zannonia leaf were first noticed by Ahlborn of Berlin, and several foreign aeroplanes were modelled on it. The stability of the Dunne machine was surprising, and it performed many good flights before the war, but it ...
— The War in the Air; Vol. 1 - The Part played in the Great War by the Royal Air Force • Walter Raleigh |
