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An aircraft propeller.
- ‘More recently the fitting of three-blade constant-speed airscrews has greatly improved the aircraft's take-off and climb and added a further 5 m.p.h. to the top speed.’
- ‘Selecting the wood, cutting the layers glueing them and shaping of the airscrew is shown.’
- ‘Women engine fitters also undertake major overhauls on liquid- and air-cooled motors and instruction is given in the maintenance of variable-pitch airscrews.’
- ‘Both planes were triplanes with twin tractor airscrews driven by shafts from the fuselage.’
- ‘This helicopter had four lifting airscrews and five auxiliary propellers.’
- ‘In 1480, Leonardo da Vinci drew his famous ‘airscrew’ machine which could never have flown.’
- ‘One envisages disposing the airscrews or the fans at the rear of the engine.’
- ‘Both companies experimented with variable-pitch metal airscrews in the U.K. during WW1, although none such enjoyed use in normal service.’
- ‘I decided to leave the airscrews and went in for a landing.’
- ‘A helicopter rotor operates in several different states and speeds, and therefore might by the most complicated airscrew of all.’
- ‘Also included are the times to height for different planes with 2-Pitch and fixed pitch airscrews.’
- ‘There was a variety of different airscrews, three blade, four blade, five blade contra rotating, and three blade twin airscrews.’
- ‘Airscrew performance depends on the wind speed as well as the rotational speed.’
- ‘It had to be risked, and I shoved the airscrews into fine pitch.’
- ‘The turbine-wheel spins at extremely high speed (>150,000 RPM), limiting most adjustments to the original factory. Finally, ornithopters do not use airscrews at all.’
- ‘They were driven through a specially designed gearbox and bicycle chains to the airscrews, counter rotating, the propeller RPM was noticeably very slow.’
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