In the simplest of flyable trirotor designs one of the rotors is simply mounted at an angle to vector some of the force sideways in an analogous manner to the tail rotor on a small helicopter.

A two-bucket helical Savonius rotor having height of 60 cm and diameter of 17 cm with 45° bucket twist angle was designed using Gambit. The buckets were connected at the top and bottom circular end ...

highlighting its stability and mobility. During standing tests, rotor assistance enabled the robot to resist external ...

The Magnus effect is an interesting thing, where fluid flowing over a rotating object generates an aerodynamic force at a right angle to the ... called a Flettner rotor. This takes advantage ...