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BR8101767A - STRUCTURE AND PROCESS TO IMPROVE THE PERFORMANCE OF A HELICOPTER ROTOR - Google Patents

STRUCTURE AND PROCESS TO IMPROVE THE PERFORMANCE OF A HELICOPTER ROTOR

Info

Publication number
BR8101767A
BR8101767A BR8101767A BR8101767A BR8101767A BR 8101767 A BR8101767 A BR 8101767A BR 8101767 A BR8101767 A BR 8101767A BR 8101767 A BR8101767 A BR 8101767A BR 8101767 A BR8101767 A BR 8101767A
Authority
BR
Brazil
Prior art keywords
performance
improve
helicopter rotor
helicopter
rotor
Prior art date
Application number
BR8101767A
Other languages
Portuguese (pt)
Inventor
H Lemont
Original Assignee
Textron Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Textron Inc filed Critical Textron Inc
Publication of BR8101767A publication Critical patent/BR8101767A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/20—Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
    • B64C2027/8254—Shrouded tail rotors, e.g. "Fenestron" fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
BR8101767A 1980-03-28 1981-03-25 STRUCTURE AND PROCESS TO IMPROVE THE PERFORMANCE OF A HELICOPTER ROTOR BR8101767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13487180A 1980-03-28 1980-03-28

Publications (1)

Publication Number Publication Date
BR8101767A true BR8101767A (en) 1981-09-29

Family

ID=22465393

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8101767A BR8101767A (en) 1980-03-28 1981-03-25 STRUCTURE AND PROCESS TO IMPROVE THE PERFORMANCE OF A HELICOPTER ROTOR

Country Status (11)

Country Link
JP (1) JPS56138099A (en)
AR (1) AR226884A1 (en)
AU (1) AU540193B2 (en)
BR (1) BR8101767A (en)
CA (1) CA1166228A (en)
DE (1) DE3111376A1 (en)
ES (1) ES267982Y (en)
FR (1) FR2479134A1 (en)
GB (1) GB2072601B (en)
IL (1) IL62492A (en)
IT (1) IT1142349B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419513A (en) * 1993-05-11 1995-05-30 United Technologies Corporation Ancillary aerodynamic structures for an unmanned aerial vehicle having ducted, coaxial counter-rotating rotors
US8882024B1 (en) * 2013-06-24 2014-11-11 Bell Helicopter Textron Inc. Rotorcraft anti-torque rotor and rudder system
US9067676B1 (en) * 2014-06-19 2015-06-30 Bell Helicopter Textron Inc. Convertible helicopter ring member
DE202017104316U1 (en) * 2017-07-19 2018-10-24 SBM Development GmbH Tail rotor assembly
CN116124407B (en) * 2023-04-10 2023-06-13 中国空气动力研究与发展中心低速空气动力研究所 Test method for obtaining influence of radar wake on aerodynamic characteristics of helicopter tail piece

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US29023A (en) * 1860-07-03 Cornelius j
US2123657A (en) * 1937-07-23 1938-07-12 Max M Munk Thrust-relieved propeller
US2609053A (en) * 1946-10-31 1952-09-02 United Aircraft Corp Shrouded tail rotor
NL110393C (en) * 1955-11-29 1965-01-15 Bertin & Cie
US3055613A (en) * 1957-12-05 1962-09-25 Bruce G Taylor Annular winged aircraft with trailing edge wing tab
DE1481629A1 (en) * 1966-06-14 1969-03-20 Piasecki Aircraft Corp Device for lateral steering of aircraft
FR1511006A (en) * 1966-12-13 1968-01-26 Sud Aviation Directional and propulsion device for helicopter
US3583659A (en) * 1968-04-26 1971-06-08 Soc D Const Et D Exploit De Ma Rotary-wing aircraft having an auxiliary rotor at its tail
US3525484A (en) * 1968-06-17 1970-08-25 Leonard E Mueller Aerodynamic saucer
FR2349495A1 (en) * 1976-04-29 1977-11-25 Baudchon Christian Vtol aircraft with circular wing - forces air radially outwards over ring of aerofoil section
US4196877A (en) * 1977-06-15 1980-04-08 Mutrux Jean L Aircraft
AT353105B (en) * 1977-10-31 1979-10-25 Tech Geraete Entwicklung Ges AIRCRAFT
CH634516A5 (en) * 1977-10-31 1983-02-15 Tech Geraete Entwicklung Ges MISSILE.
US4387867A (en) * 1977-10-31 1983-06-14 Technische Gerate-U Entwicklungsgesellschaft M.B.H. Flying craft

Also Published As

Publication number Publication date
AU540193B2 (en) 1984-11-08
GB2072601A (en) 1981-10-07
JPS56138099A (en) 1981-10-28
AR226884A1 (en) 1982-08-31
AU6732781A (en) 1981-10-01
FR2479134B1 (en) 1984-06-01
IT8148024A0 (en) 1981-03-13
DE3111376A1 (en) 1982-03-11
ES267982U (en) 1983-05-01
IL62492A (en) 1985-04-30
GB2072601B (en) 1984-04-18
JPH0247400B2 (en) 1990-10-19
FR2479134A1 (en) 1981-10-02
IT1142349B (en) 1986-10-08
ES267982Y (en) 1983-11-16
CA1166228A (en) 1984-04-24

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