Vertical and short takeoff and landing (VSTOL) aircraft
US11912405B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2018 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C39/068
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Vertical short takeoff and landing (VSTOL) aircraft include primary airfoils extending outwardly from a forward region of the aircraft fuselage, and secondary empennage airfoils extending outwardly from an aft region of the aircraft fuselage so as to be separated from the forward primary airfoils and thereby define a space therebetween which accommodates non-cyclic controllable propellers operably driven by a respective engine of a propulsion unit. The propulsion units are mounted for pivotal movement within the defined space between the primary airfoil and the secondary empennage airfoils so as to achieve a first operational position wherein the thrust line of the propellers is orientated substantially parallel to the longitudinal axis of the fuselage and a second operational position wherein the thrust line of the propellers is oriented substantially perpendicular to the longitudinal axis of the aircraft. The propulsion units may be mounted aft of the aircraft center of gravity (CG).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.