Rotorcraft with variable incident wing
US8251305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Apr 5, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C29/0033
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A twin-rotor side-by-side compound rotorcraft has a fuselage and variable incident wing assembly that pivots relative to fuselage. The aircraft also has landing gear assembly and a tail fin assembly. The variable incident wing assembly is pivotally attached to the fuselage, and includes wing members, engines fixedly mounted to the wing members or another area of the rotorcraft, and a mast attached at a fixed angle relative to the wing members. Then engines may also be located near the fuselage or another area of the rotorcraft. The variable incident wing assembly is capable of pivoting about a pivot axis, thereby allowing mast orientation in at least a hover mast position and a forward flight mast position. The rotors provide additional forward thrust and the wings provide additional lift, when the mast is in the forward flight mast position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.