IL50878A - Method and apparatus to control aircraft having dual rigid rotors - Google Patents

Method and apparatus to control aircraft having dual rigid rotors

Info

Publication number
IL50878A
IL50878A IL50878A IL5087876A IL50878A IL 50878 A IL50878 A IL 50878A IL 50878 A IL50878 A IL 50878A IL 5087876 A IL5087876 A IL 5087876A IL 50878 A IL50878 A IL 50878A
Authority
IL
Israel
Prior art keywords
control aircraft
rigid rotors
dual rigid
dual
rotors
Prior art date
Application number
IL50878A
Other versions
IL50878A0 (en
Original Assignee
United Technologies Corp
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
Priority claimed from US05/631,599 external-priority patent/US4027999A/en
Priority claimed from US05/631,600 external-priority patent/US4008979A/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of IL50878A0 publication Critical patent/IL50878A0/en
Publication of IL50878A publication Critical patent/IL50878A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/80—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement for differential adjustment of blade pitch between two or more lifting rotors
IL50878A 1975-11-13 1976-11-10 Method and apparatus to control aircraft having dual rigid rotors IL50878A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/631,599 US4027999A (en) 1975-11-13 1975-11-13 Analog mixer to vary helicopter rotor phase angle in flight
US05/631,600 US4008979A (en) 1975-11-13 1975-11-13 Control for helicopter having dual rigid rotors

Publications (2)

Publication Number Publication Date
IL50878A0 IL50878A0 (en) 1977-01-31
IL50878A true IL50878A (en) 1980-01-31

Family

ID=27091437

Family Applications (1)

Application Number Title Priority Date Filing Date
IL50878A IL50878A (en) 1975-11-13 1976-11-10 Method and apparatus to control aircraft having dual rigid rotors

Country Status (7)

Country Link
JP (1) JPS5951479B2 (en)
BR (1) BR7607626A (en)
DE (1) DE2651577C2 (en)
FR (1) FR2331479A1 (en)
GB (1) GB1519380A (en)
IL (1) IL50878A (en)
IT (1) IT1064383B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138778U (en) * 1984-08-13 1986-03-11 株式会社 壬生電機製作所 terminal board
JPS6369482U (en) * 1986-10-24 1988-05-10
DE19627869A1 (en) * 1996-07-11 1998-01-15 Zf Luftfahrttechnik Gmbh helicopter
DE102007002586A1 (en) * 2007-01-12 2008-07-24 Rotorfly Ltd. rotor system
US9315265B2 (en) * 2013-07-29 2016-04-19 Sikorsky Aircraft Corporation Adjustable scissor control link
US10370096B2 (en) 2014-04-02 2019-08-06 Sikorsky Aircraft Corporation Rotor phase control
CN117419885B (en) * 2023-12-19 2024-03-19 中国空气动力研究与发展中心低速空气动力研究所 Scissor type tail rotor wind tunnel test bed

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427936A (en) * 1943-09-18 1947-09-23 Jr Nathaniel B Wales Control mechanism for helicopters having coaxial counterrotating rotors
FR995459A (en) * 1945-03-06 1951-12-03 Method and device for improving the maneuverability of articulated rotary wing aircraft
US2748876A (en) * 1951-01-12 1956-06-05 Vertol Aircraft Corp Means for controlling tip-path of rotors
US3409248A (en) * 1965-10-22 1968-11-05 Harvard J. Bryan Rotary winged aircraft with drag propelling rotors and controls
US3409249A (en) * 1966-06-29 1968-11-05 United Aircraft Corp Coaxial rigid rotor helicopter and method of flying same
FR1534974A (en) * 1967-06-28 1968-08-02 United Aircraft Corp Improvements to helicopters with rigid coaxial rotors and to methods of piloting such helicopters
US3521971A (en) * 1968-07-17 1970-07-28 United Aircraft Corp Method and apparatus for controlling aircraft
US3570786A (en) * 1969-08-07 1971-03-16 United Aircraft Corp Control apparatus and method for operating an aircraft
JPS5614519B1 (en) * 1971-04-06 1981-04-04

Also Published As

Publication number Publication date
JPS5262898A (en) 1977-05-24
IT1064383B (en) 1985-02-18
DE2651577C2 (en) 1986-07-31
BR7607626A (en) 1977-09-27
FR2331479A1 (en) 1977-06-10
DE2651577A1 (en) 1977-05-26
FR2331479B1 (en) 1983-02-11
IL50878A0 (en) 1977-01-31
JPS5951479B2 (en) 1984-12-14
GB1519380A (en) 1978-07-26

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