FR845466A - Improvements to variable pitch aerial propellers in flight - Google Patents

Improvements to variable pitch aerial propellers in flight

Info

Publication number
FR845466A
FR845466A FR845466DA FR845466A FR 845466 A FR845466 A FR 845466A FR 845466D A FR845466D A FR 845466DA FR 845466 A FR845466 A FR 845466A
Authority
FR
France
Prior art keywords
flight
variable pitch
aerial propellers
propellers
aerial
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)
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.)
PIERRE LEVASSEUR CONST AERONAU
Original Assignee
PIERRE LEVASSEUR CONST AERONAU
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 PIERRE LEVASSEUR CONST AERONAU filed Critical PIERRE LEVASSEUR CONST AERONAU
Application granted granted Critical
Publication of FR845466A publication Critical patent/FR845466A/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
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • B64C11/34—Blade pitch-changing mechanisms mechanical automatic
    • B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR845466D 1938-04-29 1938-04-29 Improvements to variable pitch aerial propellers in flight Expired FR845466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR845466T 1938-04-29

Publications (1)

Publication Number Publication Date
FR845466A true FR845466A (en) 1939-08-24

Family

ID=9312878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845466D Expired FR845466A (en) 1938-04-29 1938-04-29 Improvements to variable pitch aerial propellers in flight

Country Status (1)

Country Link
FR (1) FR845466A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694459A (en) * 1949-12-27 1954-11-16 Hartzell Industries Variable pitch propeller control latch mechanism
US4411596A (en) * 1980-03-25 1983-10-25 Sundstrand Corporation Ram air turbine control system
EP2987725A1 (en) * 2014-08-22 2016-02-24 Microtecnica S.r.l. Actuator Lock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694459A (en) * 1949-12-27 1954-11-16 Hartzell Industries Variable pitch propeller control latch mechanism
US4411596A (en) * 1980-03-25 1983-10-25 Sundstrand Corporation Ram air turbine control system
EP2987725A1 (en) * 2014-08-22 2016-02-24 Microtecnica S.r.l. Actuator Lock
US10767499B2 (en) 2014-08-22 2020-09-08 Microtecnica S.R.L. Actuator lock

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