Variable camber aircraft wing tip
US4429844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Feb 7, 1984 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C3/48
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A variable wing tip (18) for securing to a variable camber leading edge portion (12) of an aircraft wing (10). The wing tip has a normal fore and aft camber in an upper position and is adapted to have an increased camber curvature in a deflected down position. In the down position, the wing tip has a compound curvature, is shortened in the fore and aft direction ad is generally thickened in depth in a substantial portion of the wing tip. By operation of an actuator (96) in the leading edge (21), a multiple of generally parallel scissor plates (30,32) are pivoted apart. The plates extend in an inboard outboard direction and are spaced in the fore and aft direction. The scissor plates are pairs of upper and lower plates with respect to the upper and lower surface of the wing tip, the upper plates (30) being adapted to be pivotally secured inboard to a complementary outer portion of the wing leading edge to secure the upper portion of the wing tip thereto, and the lower plates (32) being pivotally and slidably secured inboard within the wing tip and being adapted to be secured to a complementary outer portion of the wing leading edge to secure the lower portion of the wing tip thereto…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.