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

We’re not entirely sure what to call this one. It’s got the usual trappings of a drone, but with only a single rotor it clearly can’t be called by any of the standard multicopter … ...

Ever wondered why helicopters have two control sticks while airplanes usually have one? Learn how helicopter controls work ...

Vertical takeoff and landing (VTOL) advanced air mobility (AAM) aircraft generally use propellers, but these are often mistakenly called "rotors," creating confusion.

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.

The ram-rotor detonation engine, abbreviated as RRDE, mainly consists of a rotating rotor with blades, and a stationary casing. The blades on the rotor are distributed in a helical symmetric manner.

These phenomena support the development of a predictive model for rotor thrust under free water surface effects.

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 […] ...

The vanes sit in the rotor wash and provide pitch and roll control, while yaw and thrust are controlled by varying the speeds of the counter-rotating props.

A self-propagating series of explosions, contained between the blades of a high-speed rotor, promises a leap in power and efficiency during hypersonic flight – provided this radical new engine ...

The fascinating CycloTech eVTOL prototype has taken its first flight tests, running its paddle steamer-style "Cyclogiro" propulsion system, which offers some interesting advantages over typical ...

If the rotor area is A and the density of air is ρ, then this would be an expression for the thrust force (magnitude) as a function of air speed. But what about power?