Helicopters can be as dangerous as they are valuable, in part because of a phenomenon called rotor wash. What is rotor wash, ...

In fact, helicopters were preceded by autogyros, which used unpowered rotors that, like windmills, spin and generate lift when the autogyro is moving forward due to the thrust of a propeller.

The thrust from the engine helps planes move forward, causing the wind under the wings to lift. ... While flying, the pilot tilts the rotor disc in the direction they need to travel.

Horizon Aeronautics is prototyping an eVTOL hovercycle concept that uses a complex and interesting split-swashplate "Blainjett" variable pitch rotor system that only exposes half of each fan. Very ...

The rotors are the meat and bones of the entire craft. In a main and tail rotor configuration, the main rotor spins to create thrust that outweighs the helicopter's overall weight.

Three distinct phenomena are observed: (1) depression stage—surface sinking without droplets; (2) fountain stage—mild deformation with outward splashing; and (3) boiling stage—intense ...

Mechanical Dynamics & Analysis (MD&A) repaired a Frame 5 gas turbine rotor. MD&A replaced 1st and 2nd stage buckets, repaired the seal area on the row 1 turbine wheel, performed compressor […] ...

Airbus Helicopters continues to eye novel architectures for future rotorcraft designs, including new compound and tail rotor-free configurations, patent applications reveal.