FR845712A - Improvements to variable-pitch aerial propellers - Google Patents

Improvements to variable-pitch aerial propellers

Info

Publication number
FR845712A
FR845712A FR845712DA FR845712A FR 845712 A FR845712 A FR 845712A FR 845712D A FR845712D A FR 845712DA FR 845712 A FR845712 A FR 845712A
Authority
FR
France
Prior art keywords
pitch
variable
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.)
De Havilland Aircraft Co Ltd
Original Assignee
De Havilland Aircraft Co Ltd
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 De Havilland Aircraft Co Ltd filed Critical De Havilland Aircraft Co Ltd
Application granted granted Critical
Publication of FR845712A publication Critical patent/FR845712A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR845712D 1937-11-11 1938-11-07 Improvements to variable-pitch aerial propellers Expired FR845712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB845712X 1937-11-11

Publications (1)

Publication Number Publication Date
FR845712A true FR845712A (en) 1939-08-31

Family

ID=10572019

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845712D Expired FR845712A (en) 1937-11-11 1938-11-07 Improvements to variable-pitch aerial propellers

Country Status (1)

Country Link
FR (1) FR845712A (en)

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