FR857521A - Variable pitch propeller improvements - Google Patents

Variable pitch propeller improvements

Info

Publication number
FR857521A
FR857521A FR857521DA FR857521A FR 857521 A FR857521 A FR 857521A FR 857521D A FR857521D A FR 857521DA FR 857521 A FR857521 A FR 857521A
Authority
FR
France
Prior art keywords
variable pitch
pitch propeller
propeller
variable
propeller improvements
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
Other languages
French (fr)
Inventor
Robert Leparmentier
Leparmentier
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 filed Critical
Application granted granted Critical
Publication of FR857521A publication Critical patent/FR857521A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
    • B64C11/42—Blade pitch-changing mechanisms fluid, e.g. hydraulic non-automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR857521D 1939-03-02 1939-03-02 Variable pitch propeller improvements Expired FR857521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR857521T 1939-03-02

Publications (1)

Publication Number Publication Date
FR857521A true FR857521A (en) 1940-09-17

Family

ID=9329481

Family Applications (1)

Application Number Title Priority Date Filing Date
FR857521D Expired FR857521A (en) 1939-03-02 1939-03-02 Variable pitch propeller improvements

Country Status (1)

Country Link
FR (1) FR857521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573783A (en) * 1943-02-04 1951-11-06 United Aircraft Corp Propeller pitch change motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573783A (en) * 1943-02-04 1951-11-06 United Aircraft Corp Propeller pitch change motor

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