This was the variable-pitch airscrew, which made take-off and landing safer and increased the aircraft's maneuverability and climb during com - bat.    From Wordnik.com.  [The HurricaneStory]

It was the blockbuster Helly Copter the little airscrew.    From Wordnik.com.  [AfterEllen.com - Because visibility matters] Reference

A good illustration of this may be found in the question of the airscrew.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Fokkers late in 1915 had been fitted with guns which fired through the airscrew.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

In all but a few types of machine the airscrew is now retained in the forward position.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Powered by a Rolls-Royce Griffon liquid-cooled piston engine with a three-blade airscrew.    From Wordnik.com.  [WN.com - Articles related to Qatar Airways' new Tokyo route sets off large expansion drive in Asia] Reference

A later difficulty caused by the forward position of the airscrew had nothing to do with flying.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

This ship, with an airscrew driven by manpower, attained a speed of five and a half miles an hour.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

The motive power was supplied by twisted strands of rubber which, as they untwisted, turned the airscrew.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

The first of these objections was not fully met until firing through the airscrew was introduced; the second was for.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

On this scale he was successful with a machine driven by an airscrew and with a machine driven by the flapping of wings.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Verkan Vall read of a Fourth Level aviator, in his little airscrew-drive craft, sighting nine high-flying saucerlike objects.    From Wordnik.com.  [Police Operation] Reference

The airscrew, ten feet in diameter, was driven by a steam-engine of three horse-power, and the speed attained was about six miles an hour.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

They planed down at once, and landed in a small field, finishing up in a wood, where they damaged their undercarriage, wings, and airscrew.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

This toy, which weighed only a little over half an ounce, was supported on wings, and was driven forward by an airscrew made of two feathers.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Mr. William Cochrane, in a paper read a few months earlier, laid it down that the airscrew must give place to a more efficient form of propulsion.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Great Britain, maintained that the greatest hindrances to the solution of the problem of mechanical flight have always been the balloon and the airscrew.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

It took the air near Berlin on the 3rd of November 1897, but something went wrong with the airscrew belts, and it was seriously damaged in its hasty descent.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

The wings were set at a dihedral angle, that is, they were bent upwards at the tips; and fore-and-aft stability was secured by a smaller pair of wings just in front of the airscrew.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

An engine of four horse-power, weighing forty pounds, with a wooden airscrew five feet in diameter, was, by his calculations, amply sufficient to maintain his glider in horizontal flight.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

The monoplane, from the first, was a 'tractor' machine; its airscrew was in front of the planes, and its body, or fuselage, was covered in and streamlined, so as to offer the least possible resistance to the air.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

On the other hand, the single-seater tractors were potentially the superior fighters, and in order to protect the blades of the airscrew the French were the first to use deflector blades on them in tractor machines.    From Wordnik.com.  [Aviation in Peace and War] Reference

It designed and fitted up the instruments necessary for the pilot's use, which record for him his speed through the air, the consumption of his fuel, the rate of revolutions of his airscrew, the height attained, and other essentials.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

His achievement gave a great vogue to his monoplane, which was imitated by many designers; and when the factory produced a biplane fitted, like all monoplanes, with a tractor airscrew, in front of the machine, the biplane was called the Blériot Experimental.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

The other ship was designed by Baron Bradsky, secretary to the German Embassy in Paris; its total weight was made exactly equivalent to the weight of the air that it displaced, and it was to be raised by the operation of an airscrew rotating horizontally under the car.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Mr. Monck Mason exhibited at the Lowther Arcade in London a model airship, thirteen and a half feet long, and six and a half feet in diameter; its airscrew was operated by a spring; it was fitted with horizontal planes for setting its course; and in its very short flights it attained a speed of something over five miles an hour.    From Wordnik.com.  [The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force] Reference

Check the oxygen, check the petrol, brakes off, taxi into position behind Shorty, airscrew into fine pitch, mixture control to “rich,” adjust tail trimmer; and now Shorty’s holding his thumb up in the air.    From Wordnik.com.  [Storyteller] Reference

In 1913 I recommended the gradual substitution of B. E.'s for Farmans on the ground of the all-round efficiency and superior fighting qualities of the former, and to secure the advantage of standardization, but it was objected by the War Office that the Farmans were the only machines that could mount weapons in front -- an objection which was not met until firing through the airscrew was introduced -- and that the slower Farmans offered greater advantages for observation, an idea which was long prevalent.    From Wordnik.com.  [Aviation in Peace and War] Reference

Helly Copter the little airscrew was on.    From Wordnik.com.  [AfterEllen.com - Because visibility matters] Reference