EP 1091870 A1 20010418 - SPIRAL CYLINDRICAL WING TIP
Title (en)
SPIRAL CYLINDRICAL WING TIP
Title (de)
ZYLINDRISCHE UND SPIRALFÖRMIGE FLÜGELRANDKAPPE
Title (fr)
BOUT D'AILE CYLINDRIQUE ET EN SPIRALE
Publication
Application
Priority
- FR 9901603 W 19990702
- FR 9808472 A 19980702
Abstract (en)
[origin: FR2780700A1] The invention concerns a device in the form of a spiral cylindrical cavity, mobile or fixed, capable of being adapted to the tip of all carrier profiles, in particular to aeroplanes and gliders or craft requiring lifting capacity in its displacement, for reducing induced drag, increasing thrust and reaching in flight or lift, low speed levels with wide angles of incidence and high speed levels in cruising degree. The invention enables to use for similar performances or for initial performances weaker traction systems for longer and faster flights using less fuel and/or using larger loads. Moreover, said device enables to considerably and artificially increase a wing extension while preserving the same profile and the initial aerodynamics of an aeroplane in flight or of a levitating craft using lifting capacity up to subsonic speed.
IPC 1-7
IPC 8 full level
B64C 23/06 (2006.01)
CPC (source: EP US)
B64C 23/065 (2013.01 - EP US); Y02T 50/10 (2013.01 - EP)
Citation (search report)
See references of WO 0001580A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2780700 A1 20000107; FR 2780700 B1 20000929; AU 4621699 A 20000124; BR 9912513 A 20010502; CA 2335929 A1 20000113; EP 1091870 A1 20010418; WO 0001580 A1 20000113; WO 0001580 B1 20000316
DOCDB simple family (application)
FR 9808472 A 19980702; AU 4621699 A 19990702; BR 9912513 A 19990702; CA 2335929 A 19990702; EP 99929388 A 19990702; FR 9901603 W 19990702