GB528046A - Improved helicopter - Google Patents

Improved helicopter

Info

Publication number
GB528046A
GB528046A GB11757/39A GB1175739A GB528046A GB 528046 A GB528046 A GB 528046A GB 11757/39 A GB11757/39 A GB 11757/39A GB 1175739 A GB1175739 A GB 1175739A GB 528046 A GB528046 A GB 528046A
Authority
GB
United Kingdom
Prior art keywords
helicopter
driven
improved helicopter
airscrews
allan
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
GB11757/39A
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.)
HENRY BARCLAY ALLAN
Original Assignee
HENRY BARCLAY ALLAN
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 HENRY BARCLAY ALLAN filed Critical HENRY BARCLAY ALLAN
Priority to GB11757/39A priority Critical patent/GB528046A/en
Publication of GB528046A publication Critical patent/GB528046A/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
    • B64C27/22—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
    • B64C27/28—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with forward-propulsion propellers pivotable to act as lifting rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Toys (AREA)

Abstract

528,046. Helicopters. ALLAN, H. B. April 19, 1939, No. 11757. [Class 4] A helicopter has two concentrically-mounted airscrews 12 provided with rigidly-mounted upwardly inclined blades and driven through crown and bevel gearing from separate motors 4, 5 each with its own fuel supply and provided with a clutch 6 whereby it may be disconnected from the drive during flight. A rudder on an axis 3 inclined to the vertical is provided. The Provisional Specification states also that the helicopter may be made as a toy and driven by a rubber cord.
GB11757/39A 1939-04-19 1939-04-19 Improved helicopter Expired GB528046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11757/39A GB528046A (en) 1939-04-19 1939-04-19 Improved helicopter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11757/39A GB528046A (en) 1939-04-19 1939-04-19 Improved helicopter

Publications (1)

Publication Number Publication Date
GB528046A true GB528046A (en) 1940-10-22

Family

ID=9992139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11757/39A Expired GB528046A (en) 1939-04-19 1939-04-19 Improved helicopter

Country Status (1)

Country Link
GB (1) GB528046A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689011A (en) * 1948-02-09 1954-09-14 Mcdonnell Aircraft Corp Helicopter rotor construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689011A (en) * 1948-02-09 1954-09-14 Mcdonnell Aircraft Corp Helicopter rotor construction

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