Search results
Results from the WOW.Com Content Network
A rotary-wing aircraft, rotorwing aircraft or rotorcraft is a heavier-than-air aircraft with rotary wings that spin around a vertical mast to generate lift. The assembly of several rotor blades mounted on a single mast is referred to as a rotor .
Conventional rotary wings as used by modern rotorcraft. Spanwise horizontal-axis. Wing rotor: an airfoil-section horizontal-axis rotor which creates the primary lift. Magnus rotor: a rotor which creates lift via the Magnus effect. Flettner rotor: a smooth cylindrical Magnus rotor with disc end plates.
Sikorsky S-72 modified as the X-Wing testbed, with experimental 4-blade main rotor. With a single main rotor helicopter, the creation of torque as the engine turns the rotor creates a torque effect that causes the body of the helicopter to turn in the opposite direction of the rotor. To eliminate this effect, some sort of antitorque control ...
Conventional rotary-wing aircraft use a set of complex mechanical gearboxes to convert the high rotation speed of gas turbines into the low speed required to drive main and tail rotors. Unlike powerplants, mechanical gearboxes cannot be duplicated (for redundancy) and have always been a major weak point in helicopter reliability.
The magazine typically contains a news section, a number of flight tests and buyers guides, a section detailing what is involved in various flying activities, an 'adventure flying' section, an engineering section, and a historic aircraft news section. It is also the only UK GA magazine to include content on rotary-wing aircraft in every edition ...
They later purchased and restored another fixed-wing aircraft and flew it until 1933, when it was damaged. In the winter of 1936–1937, the brothers traveled to Oakland, California to learn about rotary-wing aircraft and commenced construction of their own helicopter in 1937. The first short test flight was carried out on December 20, 1938.
The Boeing X-50A Dragonfly, formerly known as the Canard Rotor/Wing Demonstrator, was a VTOL rotor wing experimental unmanned aerial vehicle that was developed by Boeing and DARPA to demonstrate the principle that a helicopter's rotor could be stopped in flight and act as a fixed wing, enabling it to transition between fixed-wing and rotary-wing flight.
He made history by designing the world's first successful manned rotary wing aircraft. Cornu first built an unmanned experimental design powered by a 2 hp Buchet engine. [3] His manned helicopter was powered by a 24 horsepower (18 kW) Antoinette engine. [4] He piloted this construction himself at Normandy, France on 13 November 1907. [5]