Morocco’s Royal Navy marked a major milestone Tuesday as Navantia San Fernando shipyard in Spain launched a new Avante 1800+ offshore patrol vessel. The unnamed vessel, which bears the hull number 502 ...

This work presents a nonlinear adaptive control design of a variable-pitch quadrotor ... the necessity for an adaptive control technique. Quadrotors with variable-pitch propellers are chosen as they ...

Transition between cruise level flight at angle of attack (AOA)= 4°, and harrier level flight at AOA = 50° is implemented, on a variable pitch propeller design, in which the pitch of the propeller is ...

The aircraft, which is certified as an light sport aircraft (LSA) glider, is equipped with a variable pitch propeller that can be feathered for gliding with the engine shut down. This Sinus FLEX ...