GB1439237A - Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops - Google Patents

Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops

Info

Publication number
GB1439237A
GB1439237A GB4172773A GB4172773A GB1439237A GB 1439237 A GB1439237 A GB 1439237A GB 4172773 A GB4172773 A GB 4172773A GB 4172773 A GB4172773 A GB 4172773A GB 1439237 A GB1439237 A GB 1439237A
Authority
GB
United Kingdom
Prior art keywords
yoke
droop
blade
coning
axis
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
GB4172773A
Other languages
English (en)
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.)
RTX Corp
Original Assignee
United Aircraft 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
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
Publication of GB1439237A publication Critical patent/GB1439237A/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
    • B64C27/322—Blade travel limiting devices, e.g. droop stops
    • 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)
  • Support Of The Bearing (AREA)
  • Toys (AREA)
  • Centrifugal Separators (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
GB4172773A 1972-09-05 1973-09-05 Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops Expired GB1439237A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28650972A 1972-09-05 1972-09-05
US28650872A 1972-09-05 1972-09-05

Publications (1)

Publication Number Publication Date
GB1439237A true GB1439237A (en) 1976-06-16

Family

ID=26963874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4172773A Expired GB1439237A (en) 1972-09-05 1973-09-05 Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops

Country Status (6)

Country Link
AU (1) AU466704B2 (enrdf_load_stackoverflow)
DE (1) DE2344395C2 (enrdf_load_stackoverflow)
FR (1) FR2197764B1 (enrdf_load_stackoverflow)
GB (1) GB1439237A (enrdf_load_stackoverflow)
IL (1) IL42948A (enrdf_load_stackoverflow)
IT (1) IT993875B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932059A (en) * 1975-01-10 1976-01-13 United Technologies Corporation Droop stops for helicopter rotor having elastomeric bearings
US4297078A (en) * 1978-05-17 1981-10-27 Westland Aircraft Limited Helicopter rotors
GB2025338B (en) * 1978-06-02 1982-08-04 Aerospatiale Helicopterrotor
FR2764577B1 (fr) * 1997-06-13 1999-08-20 Eurocopter France Rotor de giravion a butees de battement fixes sur pales et moyeu, et a loi pas-battement determinee

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR948570A (fr) * 1946-05-30 1949-08-04 Bristol Aeroplane Co Ltd Perfectionnements aux aéronefs à voilure tournante
US2614640A (en) * 1951-02-01 1952-10-21 United Aircraft Corp Rotor blade support
US3501250A (en) * 1968-03-22 1970-03-17 Boeing Co Rotor hub

Also Published As

Publication number Publication date
AU5952473A (en) 1975-02-27
DE2344395A1 (de) 1974-03-14
AU466704B2 (en) 1975-11-06
FR2197764B1 (enrdf_load_stackoverflow) 1976-11-19
IL42948A (en) 1976-05-31
IL42948A0 (en) 1973-11-28
FR2197764A1 (enrdf_load_stackoverflow) 1974-03-29
IT993875B (it) 1975-09-30
DE2344395C2 (de) 1985-03-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930904