Learn English Grammar From A–Z
1hélice (de avión) feminine
- In 1480, Leonardo da Vinci drew his famous ‘airscrew’ machine which could never have flown.
- Both planes were triplanes with twin tractor airscrews driven by shafts from the fuselage.
- This helicopter had four lifting airscrews and five auxiliary propellers.
- Selecting the wood, cutting the layers glueing them and shaping of the airscrew is shown.
- 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.
- One envisages disposing the airscrews or the fans at the rear of the engine.
- It had to be risked, and I shoved the airscrews into fine pitch.
- Also included are the times to height for different planes with 2-Pitch and fixed pitch airscrews.
- 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.
- Both companies experimented with variable-pitch metal airscrews in the U.K. during WW1, although none such enjoyed use in normal service.
- There was a variety of different airscrews, three blade, four blade, five blade contra rotating, and three blade twin airscrews.
- They were driven through a specially designed gearbox and bicycle chains to the airscrews, counter rotating, the propeller RPM was noticeably very slow.
- Women engine fitters also undertake major overhauls on liquid- and air-cooled motors and instruction is given in the maintenance of variable-pitch airscrews.
- 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.
- Airscrew performance depends on the wind speed as well as the rotational speed.