Word: ands
(lookup in dictionary)
(lookup stats)
Dates: during 1910-1919
Sort By: most recent first
(reverse)
A prize of $100,000 is offered by the Aero Club of France for the development of the "helicopter" type of machine which will be able to land and take off vertically, according to a recent announcement by the Aero Club of America. The prize is put up by Monsieur...
This type of machine would be independent of horizontal flying speed to create pressure under its wings and would be able to land and to start from the roofs of buildings in the heart of a city. This implies the necessity of a motor strong enough to swing a propellor...
Various fast scout planes of high speed and unusual climbing ability have been said to approach a helicopter in their vertical climb but no one of these machines, no matter how powerful its engines, has been able to leave the ground at flying speed of less than 45 to 70...
A number of experiments to this end have been carried on both in Europe and the United States with the idea of making the airplane independent of landing fields. If the attempt to produce the machine is successful, it would revolutionize the art of flying, and make possible the "back...
Some of the difficulties in the way of developing the machine may be imagined by the conditions of the contest, which require that the airplane shall take the air vertically, have a range of speed up to 134 miles an hour, and land vertically within a radius of five metres...