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.

One of the most fascinating aircraft in the eVTOL space has moved into flight testing with a new large-scale prototype. Cyclotech's Blackbird airframe becomes the world's first aircraft to fly ...

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 […] ...

You will also need to replace the master cylinder with one that is designed for a disc/drum combination. Even with new rotors, ... thrust washer; and castellated nut. See All 24 Photos.

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