"Helicopter" Quotes from Famous Books
 ... metres at a height of a metre and a half. With later machines he had some successes, but the rapid progress of French aviation left him behind, and his latest invention was an application to the aeroplane of a helicopter, to raise it vertically in the air. The helicopter idea continues to fascinate some inventors, and it would be rash to condemn it, but the most it seems to promise is a flight like that of the lark—an almost vertical ascent and a glide to earth again. ...
— The War in the Air; Vol. 1 - The Part played in the Great War by the Royal Air Force • Walter Raleigh |
