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GB159207A - Improvements relating to the construction of helices for helicopters and similar flying machines - Google Patents

Improvements relating to the construction of helices for helicopters and similar flying machines

Info

Publication number
GB159207A
GB159207A GB5825/21A GB582521A GB159207A GB 159207 A GB159207 A GB 159207A GB 5825/21 A GB5825/21 A GB 5825/21A GB 582521 A GB582521 A GB 582521A GB 159207 A GB159207 A GB 159207A
Authority
GB
United Kingdom
Prior art keywords
helicopters
helices
construction
improvements relating
flying machines
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
GB5825/21A
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
Publication of GB159207A publication Critical patent/GB159207A/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
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/467—Aerodynamic features

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Earth Drilling (AREA)
  • Control Of Turbines (AREA)
  • Adjustment And Processing Of Grains (AREA)

Abstract

159,207. Pateras Pescara, Raul, Marquis of. Feb. 21, 1920, [Convention date]. Screw propellers. - Consists in making the blades of screw propellers for use on helicopters with double curvature, and is more particularly applied to biplane-bladed propellers, Fig. 8. Reference has been directed by the Comptroller to Specifications 6649/86, 22019/93, 20770/94, 27662/08, 10098/09, and 27763/13.
GB5825/21A 1920-02-21 1921-02-21 Improvements relating to the construction of helices for helicopters and similar flying machines Expired GB159207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES159207X 1920-02-21

Publications (1)

Publication Number Publication Date
GB159207A true GB159207A (en) 1922-05-22

Family

ID=8244590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5825/21A Expired GB159207A (en) 1920-02-21 1921-02-21 Improvements relating to the construction of helices for helicopters and similar flying machines

Country Status (1)

Country Link
GB (1) GB159207A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720928A (en) * 1950-06-30 1955-10-18 Warto Aristides Aircraft propeller
DE1025274B (en) * 1955-01-20 1958-02-27 Sud Aviation Propeller blades for helicopters
WO1991000212A1 (en) * 1989-06-30 1991-01-10 Airflow Research And Manufacturing Corporation Lightweight airfoil
US5151014A (en) * 1989-06-30 1992-09-29 Airflow Research And Manufacturing Corporation Lightweight airfoil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720928A (en) * 1950-06-30 1955-10-18 Warto Aristides Aircraft propeller
DE1025274B (en) * 1955-01-20 1958-02-27 Sud Aviation Propeller blades for helicopters
WO1991000212A1 (en) * 1989-06-30 1991-01-10 Airflow Research And Manufacturing Corporation Lightweight airfoil
US5151014A (en) * 1989-06-30 1992-09-29 Airflow Research And Manufacturing Corporation Lightweight airfoil

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