Title:
HYBRID AIRCRAFT
Document Type and Number:
WIPO Patent Application WO1997015492
Kind Code:
A3
Abstract:
A hybrid aircraft having VTOL R-VTOL and S-STOL capabilities having a lifting body hull (1) and four wing sections (20) arranged in tandem which are pivotally moveable about their neutral axis. Each wing section has mounted thereon a pivotal propeller-rotor (21) assembly for providing thrust substantially in a range between horizontal and vertical. The wings and propellers are integrated to the hull by an outrigger designed to be very stiff and to distribute forces from the wings and propellers from the hull. The hull is shaped to provide aerodynamic lift in an airstream and to facilitate construction by minimizing the number of panels of differing curvature required. The hull is formed of a pressure tensioned frame covered with semi-rigid panels, a lower cladding frame and bow and stem cladding nose cones. The semi-rigid panels covering the frame are formed of gas-tight and abrasion resistant laminate material and are connected to the frame by means of an interface rib and latch system. The frame is formed of a plurality of curved elongate segments arranged in series orthogonal to the long axis of the hull and connected by means of torsion members. A turbo-electric drive system can be used to drive the aircraft. An advanced hybrid aircraft is also described having about 8 to 12 high speed fans in place of the propeller-rotors.
Inventors:
BOTHE HANS-JURGEN (CA)
Application Number:
PCT/CA1996/000705
Publication Date:
May 29, 1997
Filing Date:
October 24, 1996
Export Citation:
Assignee:
BOTHE HANS JURGEN (CA)
International Classes:
B64B1/06; B64B1/08; B64B1/18; B64B1/32; B64B1/34; B64C1/00; B64C1/26; B64C27/52; B64C29/00; B64C39/00; B64C39/10; (IPC1-7): B64C29/00; B64C1/00; B64C39/00
Foreign References:
| US3877665A | 1975-04-15 | |||
| US2462201A | 1949-02-22 | |||
| US3110456A | 1963-11-12 | |||
| DE3508101A1 | 1986-09-11 | |||
| DE3508100A1 | 1986-09-11 | |||
| GB1001594A | 1965-08-18 | |||
| US2082376A | 1937-06-01 | |||
| US2091580A | 1937-08-31 | |||
| US4052025A | 1977-10-04 | |||
| FR2644134A1 | 1990-09-14 |
Other References:
NASA TECH BRIEF: "TILTABLE-WING, TILTABLE-ROTOR AIRCRAFT", N.T.I.S. TECHNICAL NOTES, no. 5, 1 May 1986 (1986-05-01), VIRGINIA,USA, XP002023246
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