CA1113912A - Compound hub spring system for helicopters - Google Patents

Compound hub spring system for helicopters

Info

Publication number
CA1113912A
CA1113912A CA308,309A CA308309A CA1113912A CA 1113912 A CA1113912 A CA 1113912A CA 308309 A CA308309 A CA 308309A CA 1113912 A CA1113912 A CA 1113912A
Authority
CA
Canada
Prior art keywords
mast
flapping
elastomeric
rotor
angle
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA308,309A
Other languages
English (en)
French (fr)
Inventor
Larry W. Dooley
Jan M. Drees
William D. Neathery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textron Inc
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
Application granted granted Critical
Publication of CA1113912A publication Critical patent/CA1113912A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/35—Rotors having elastomeric joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Springs (AREA)
  • Discharge By Other Means (AREA)
  • Toys (AREA)
  • Vibration Prevention Devices (AREA)
CA308,309A 1977-08-11 1978-07-27 Compound hub spring system for helicopters Expired CA1113912A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82362477A 1977-08-11 1977-08-11
US823,624 1977-08-11

Publications (1)

Publication Number Publication Date
CA1113912A true CA1113912A (en) 1981-12-08

Family

ID=25239266

Family Applications (1)

Application Number Title Priority Date Filing Date
CA308,309A Expired CA1113912A (en) 1977-08-11 1978-07-27 Compound hub spring system for helicopters

Country Status (6)

Country Link
JP (1) JPS5453497A (enExample)
CA (1) CA1113912A (enExample)
DE (1) DE2833813C2 (enExample)
FR (1) FR2399945A1 (enExample)
GB (1) GB2002308B (enExample)
IT (1) IT1107202B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497173A1 (fr) * 1980-12-26 1982-07-02 Aerospatiale Butee lamifiee de forme courbe, notamment pour rotor d'helicoptere
EP2437979B1 (en) * 2009-06-02 2016-10-26 UMS Skeldar Sweden AB Rotor damper and tail rotor with such a rotor damper
DE102015107596B3 (de) * 2015-05-13 2016-10-20 Deutsches Zentrum für Luft- und Raumfahrt e.V. Hubschrauber mit Einrichtungen zum Vermeiden des Mast Bumping

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1111541A (fr) * 1953-07-22 1956-03-01 Doman Helicopters Rotor à libre inclinaison pour engins aériens à autosustentation
US3804552A (en) * 1972-07-05 1974-04-16 Textron Inc Four blade main rotor control power coupling
US3807896A (en) * 1972-10-10 1974-04-30 Textron Inc Concentric tube spring rotor mount

Also Published As

Publication number Publication date
GB2002308B (en) 1982-01-06
IT1107202B (it) 1985-11-25
FR2399945A1 (fr) 1979-03-09
GB2002308A (en) 1979-02-21
JPS6239B2 (enExample) 1987-01-06
IT7850673A0 (it) 1978-08-09
DE2833813A1 (de) 1979-02-22
FR2399945B1 (enExample) 1983-02-18
DE2833813C2 (de) 1987-01-02
JPS5453497A (en) 1979-04-26

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Legal Events

Date Code Title Description
MKEX Expiry