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FR561883A - Device intended to increase the efficiency of an active surface moving in a fluid and various applications of this device - Google Patents

Device intended to increase the efficiency of an active surface moving in a fluid and various applications of this device

Info

Publication number
FR561883A
FR561883A FR561883DA FR561883A FR 561883 A FR561883 A FR 561883A FR 561883D A FR561883D A FR 561883DA FR 561883 A FR561883 A FR 561883A
Authority
FR
France
Prior art keywords
fluid
efficiency
increase
various applications
active surface
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
Pierre Levasseur
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 FR561883A publication Critical patent/FR561883A/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
    • B64C11/16—Blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR561883D 1923-02-07 1923-02-07 Device intended to increase the efficiency of an active surface moving in a fluid and various applications of this device Expired FR561883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR561883T 1923-02-07

Publications (1)

Publication Number Publication Date
FR561883A true FR561883A (en) 1923-10-30

Family

ID=8943925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR561883D Expired FR561883A (en) 1923-02-07 1923-02-07 Device intended to increase the efficiency of an active surface moving in a fluid and various applications of this device

Country Status (1)

Country Link
FR (1) FR561883A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097285B (en) * 1958-03-13 1961-01-12 Ludwig Hoffmann Dipl Ing End plate for propeller wing
DE1134593B (en) * 1960-11-14 1962-08-09 Boelkow Entwicklungen Kg Rotor for rotary wing aircraft
US3369775A (en) * 1965-01-11 1968-02-20 Scott C. Rethorst Aircraft wing system having zero induced drag
US4264043A (en) * 1976-06-14 1981-04-28 Walker Robert A Stabilizer for aerospace vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097285B (en) * 1958-03-13 1961-01-12 Ludwig Hoffmann Dipl Ing End plate for propeller wing
DE1134593B (en) * 1960-11-14 1962-08-09 Boelkow Entwicklungen Kg Rotor for rotary wing aircraft
US3369775A (en) * 1965-01-11 1968-02-20 Scott C. Rethorst Aircraft wing system having zero induced drag
US4264043A (en) * 1976-06-14 1981-04-28 Walker Robert A Stabilizer for aerospace vehicles

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