FR54807E - Improvements to aircraft, in particular those fitted with lift propellers liable to be immobilized in flight - Google Patents

Improvements to aircraft, in particular those fitted with lift propellers liable to be immobilized in flight

Info

Publication number
FR54807E
FR54807E FR54807DA FR54807E FR 54807 E FR54807 E FR 54807E FR 54807D A FR54807D A FR 54807DA FR 54807 E FR54807 E FR 54807E
Authority
FR
France
Prior art keywords
liable
immobilized
flight
aircraft
particular those
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 Boudier
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 FR54807E publication Critical patent/FR54807E/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
    • B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
    • B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
    • B64C29/0033—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being tiltable relative to the fuselage

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR54807D 1946-07-27 1946-07-27 Improvements to aircraft, in particular those fitted with lift propellers liable to be immobilized in flight Expired FR54807E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR54807T 1946-07-27

Publications (1)

Publication Number Publication Date
FR54807E true FR54807E (en) 1950-08-02

Family

ID=8689225

Family Applications (1)

Application Number Title Priority Date Filing Date
FR54807D Expired FR54807E (en) 1946-07-27 1946-07-27 Improvements to aircraft, in particular those fitted with lift propellers liable to be immobilized in flight

Country Status (1)

Country Link
FR (1) FR54807E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136845A (en) * 1971-03-08 1979-01-30 Karl Eickmann Hydraulically operated aircraft with a retractable propeller
US4488692A (en) * 1971-03-08 1984-12-18 Karl Eickmann Vehicle with propeller-pairs and automatic synchronization with power division

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136845A (en) * 1971-03-08 1979-01-30 Karl Eickmann Hydraulically operated aircraft with a retractable propeller
US4488692A (en) * 1971-03-08 1984-12-18 Karl Eickmann Vehicle with propeller-pairs and automatic synchronization with power division

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