FR853421A - Rotor helicopter engaging in pairs - Google Patents

Rotor helicopter engaging in pairs

Info

Publication number
FR853421A
FR853421A FR853421DA FR853421A FR 853421 A FR853421 A FR 853421A FR 853421D A FR853421D A FR 853421DA FR 853421 A FR853421 A FR 853421A
Authority
FR
France
Prior art keywords
engaging
pairs
rotor helicopter
helicopter
rotor
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
Anton Flettner
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 FR853421A publication Critical patent/FR853421A/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
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR853421D 1938-02-12 1939-02-11 Rotor helicopter engaging in pairs Expired FR853421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE853421X 1938-02-12

Publications (1)

Publication Number Publication Date
FR853421A true FR853421A (en) 1940-03-19

Family

ID=6787923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853421D Expired FR853421A (en) 1938-02-12 1939-02-11 Rotor helicopter engaging in pairs

Country Status (1)

Country Link
FR (1) FR853421A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427981A (en) * 1944-12-09 1947-09-23 Thompson Wade Corp Drive and pitch control mechanism for helicopter rotors
US2646130A (en) * 1950-12-29 1953-07-21 Udelman Jaime Helicopter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427981A (en) * 1944-12-09 1947-09-23 Thompson Wade Corp Drive and pitch control mechanism for helicopter rotors
US2646130A (en) * 1950-12-29 1953-07-21 Udelman Jaime Helicopter

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