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Publication numberDE2725221 A1
Publication typeApplication
Application numberDE19772725221
Publication date21 Dec 1978
Filing date3 Jun 1977
Priority date3 Jun 1977
Publication number19772725221, 772725221, DE 2725221 A1, DE 2725221A1, DE-A1-2725221, DE19772725221, DE2725221 A1, DE2725221A1, DE772725221
InventorsKlaus Katzschke
ApplicantKlaus Katzschke
Export CitationBiBTeX, EndNote, RefMan
External Links: DPMA, Espacenet
Articulated wing system with adjustable V=position - uses several individual wings of arbitrary shape in hinged connection
DE 2725221 A1
The wing system can assume a variable V-position and consists of several individual wings hinged together. The angle (5) between the individual wings can be changed by an axial hinge coupling. The hinged connection of the individual wings can be mounted at any arbitrary wing points, possible using suitable bearings. Thus the wings can also cross each other in a scissors-like manner.
Description  available in
Claims  available in
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
DE3710703A1 *31 Mar 198713 Oct 1988Manfred UellenbergWing system for fixed-wing aircraft having two lift-generating wings
DE4201492A1 *21 Jan 199224 Mar 1994Christian GrasserRotor for flying device - has blades with stabilisers on tips having bendable and retaining cables, bendable ones being attached to drum in centre of rotor
DE19856361C1 *7 Dec 19986 Jul 2000Dietmar HanflandStabilizer for rotor blade with longitudinally running gap involves bracing of double blade root and additional surface on upper blade leg running from root to hole formation
EP0295353A1 *28 Sep 198721 Dec 1988Khammas, Achmed Adolf WolfgangRotorblade
US5078339 *6 Jul 19907 Jan 1992Israel Aircraft Industries Ltd.Unmanned aircraft having a pivotably movable double wing unit
US683745729 May 20014 Jan 2005Natural Colour Kari Kirjavainen OyAircraft rotor and aircraft
US7028948 *28 Aug 200318 Apr 2006The Boeing CompanyApparatus for increase of aircraft lift and maneuverability
WO2001040052A1 *7 Sep 20007 Jun 2001Natural Colour Kari Kirjavainen OyAircraft rotor and aircraft
International ClassificationB64C39/06, B64C27/32, B64C11/16
Cooperative ClassificationB64C27/32, B64C11/16, B64C39/068
European ClassificationB64C39/06D, B64C11/16, B64C27/32
Legal Events
8 Feb 1979OFWillingness to grant licenses before publication of examined application
16 Jun 19828127New person/name/address of the applicant
26 Apr 19848139Disposal/non-payment of the annual fee