FR418774A - Improvements to aerial devices increasing propulsion efficiency and reducing resistance to penetration - Google Patents

Improvements to aerial devices increasing propulsion efficiency and reducing resistance to penetration

Info

Publication number
FR418774A
FR418774A FR418774DA FR418774A FR 418774 A FR418774 A FR 418774A FR 418774D A FR418774D A FR 418774DA FR 418774 A FR418774 A FR 418774A
Authority
FR
France
Prior art keywords
penetration
reducing resistance
propulsion efficiency
aerial devices
devices increasing
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
Ambroise Goupy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR418774A publication Critical patent/FR418774A/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
    • B64C11/02—Hub construction
    • B64C11/14—Spinners

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR418774D 1910-07-29 1910-07-29 Improvements to aerial devices increasing propulsion efficiency and reducing resistance to penetration Expired FR418774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR418774T 1910-07-29

Publications (1)

Publication Number Publication Date
FR418774A true FR418774A (en) 1910-12-19

Family

ID=1462060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR418774D Expired FR418774A (en) 1910-07-29 1910-07-29 Improvements to aerial devices increasing propulsion efficiency and reducing resistance to penetration

Country Status (1)

Country Link
FR (1) FR418774A (en)

Similar Documents

Publication Publication Date Title
FR418774A (en) Improvements to aerial devices increasing propulsion efficiency and reducing resistance to penetration
FR460797A (en) Improvements to mechanotherapy and gymnastics equipment
FR430832A (en) Improvements to management equipment
FR452153A (en) Improvements to electromagnets and similar devices
FR398559A (en) Improvements to telegraph poles
FR432972A (en) Improvements to electromagnets and similar devices
FR399183A (en) Improvements to devices used to crack hard shell nuts
FR420255A (en) Improvements to airplanes and other similar devices
FR14681E (en) Improvements to airplanes and other similar devices
FR473916A (en) Improvements to airplanes and similar devices
FR470683A (en) Improvements to punching devices
FR477205A (en) Improvements to constant-wing airplanes
FR412735A (en) Improvements to aerial propellers
FR424370A (en) Improvements to aerial propellers
FR11143E (en) Improvements to airplanes
FR436776A (en) Improvements to current rectifier devices
FR434404A (en) Improvements to shock absorbing devices
FR404799A (en) Improvements to hunting devices
FR469372A (en) Improvements to string-making devices
FR456671A (en) Improvements made to aerial devices used in military art
FR429414A (en) Improvements to airplanes and similar devices
FR435234A (en) Improvements to handling equipment
FR478494A (en) Improvements to printing devices
FR457121A (en) Improvements to wind separators
FR399507A (en) Improvements to telegraph devices