Roto-Stabilizer for Superb Pitch-Related Post-Stall Maneuvers and STOL

Abstract

Stabilizers and their control surfaces are vital components in maneuvering an airplane during flight. However, a shortcoming of stabilizers is that they require airstream or propeller wash for them to work properly. In this work, we propose the concept of roto-stabilizer as viable substitution for conventional horizontal stabilizer. A key benefit of the proposed technique is its ability to exert powerful moment in the absence of forward airspeed or propeller wash. Proof of principle is demonstrated via computer simulations. Results reveal that new aerobatic maneuvers are made possible. Furthermore, when implemented in canard configuration, it is possible to achieve ultra-STOL and VTOL.

Retarded Harrier Maneuver as a New and Efficient Approach for Fixed-Wing Aircraft to Achieve S/VTOL

“…In our previous work, we introduced the concept of roto-stabilizer, both in mono [15] and tandem configurations [16]. Mono roto-stabilizer is a viable substitution for conventional horizontal stabilizer [15] [16].…”

“…In our previous work, we introduced the concept of roto-stabilizer, both in mono [15] and tandem configurations [16]. Mono roto-stabilizer is a viable substitution for conventional horizontal stabilizer [15] [16]. The tandem roto-stabilizers provides rotor-borne lift in addition to exerting pitching moment and it was specifically developed to achieve hyper-short takeoff and landing (hyper-STOL) or VTOL via a maneuver known as "retarded harrier"-a maneuver similar to the harrier except for the presence of an opposing aerodynamic force that opposes any forward thrust in the horizontal direction.…”