US3813060A - Airplane - Google Patents

Airplane Download PDF

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Publication number
US3813060A
US3813060A US00333798A US33379873A US3813060A US 3813060 A US3813060 A US 3813060A US 00333798 A US00333798 A US 00333798A US 33379873 A US33379873 A US 33379873A US 3813060 A US3813060 A US 3813060A
Authority
US
United States
Prior art keywords
wing
frame
airplane
sheet
frame member
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 - Lifetime
Application number
US00333798A
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English (en)
Inventor
M Mochizuki
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 US3813060A publication Critical patent/US3813060A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C31/00—Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
    • B64C31/028—Hang-glider-type aircraft; Microlight-type aircraft
    • B64C31/032—Hang-glider-type aircraft; Microlight-type aircraft having delta shaped wing

Definitions

  • An airplane includes a wing on which a sheet of material such as canvas or the like is disposed whereby under flight conditions, the sheet material becomes inflated to provide the required lift to the airplane.
  • An airplane body is supported under the wing and a propellor-driving engine imparts forward motion to the plane so that the on-rushing air passes underneath the wing to inflate the latter and provide the necessary lift for take-off and sustained flight.
  • This invention relates to airplanes, and more particularly to an airplane of simplified construction which provides sufficient lifting force and which is easy to fly and to land.
  • the airplane of the present invention is safe to fly and may be used as a sport plane, for example, to fly at low altitudes.
  • An airplane includes a wing frame having a front frame member which has a generally parabolic configuration in which two leg portions extend rearwardly of the airplane.
  • a rear frame member joins the two leg portions of the front frame member and a center member generally bridges the centers of the front frame member and the rear frame member.
  • a sheet of material such as canvas or the like is secured over the top ofthe frame and the sheet has a configuration such that it becomes inflated under flight conditions with the amount of inflation generally progressively increasing from front to rear of the frame.
  • the sheet material has a pair of openings at the rear portion in the area of maximum inflation whereby air under the inflated wing passes out through the openings.
  • An airplane body mounting a propeller-driving engine is attached to the underside of the wing.
  • FIG. 7 is a perspective view of the airplane shown DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 shows a wing (a) which is mounted on a body (b) of an airplane.
  • the wing (a) comprises a frame which includes a front member 2 having a generally parabolic configuration as can best be seen in FIG. 3.
  • the frame also includes a back member 3 which curves slightly outwardly and a center bar 4 which bridges the centers of the front member 2 and the back member 3.
  • the various frame members 2, 3 and 4 are joined to one another to define a unitized frame structure.
  • a covering material 7 such as canvas or the like is arranged on the frame to cover the latter.
  • the canvas has a configuration such that it will take on or assume the shape shown in the drawings.
  • the canvas 7 which is secured to the frame has a pair of openings 6, 6 located generally in the area of the connections 5, 5 between the ends of the parabolic front member 2 and the back member 3.
  • the canvas is arranged so that the greatest amount of inflation occurs at the rear portion of the canvas adjacent to the back member 3 of the frame as indicated at 8.
  • the canvas 7 is affixed to the center bar 4 so that under inflated conditions, two triangles are formed on either side of the bar 4 when viewed from the front and rear respectively.
  • the body (b) of the airplane comprises a base element 10 having fixed supports 9, 9' extending therefrom and secured to the center bar 4 of the wing frame.
  • the base element 10 mounts an engine I] which drives a propeller 12.
  • a seat 14 is provided on the base element 10 for the pilot who is able to control the engine 11 by means of a control lever 13 while sitting in the seat 14.
  • a vertical tail wing or rudder 18 is pivotally mounted on the rear support 9'.
  • Suitable ropes or control cables 19 are provided between the rudder l8 and pedals 17 which are operable by the pilot for controlling the position of the rudder l8.
  • the pedals 17 are mounted on struts or legs 16 which support front wheels IS.
  • the horizontal wing (a) extends over the entire body (b) of the airplane.
  • the airplane moves forward and the on rushing stream of air inflates the wing (a) so as to form, in a side view, an acute triangle with the largest amount of inflation 8 occurring at the back of the frame adjacent the rear frame member.
  • the air escapes from under the inflated wing through the openings 6, 6 in the corners of the wing whereby the wing creates a sufficient lifting force for the plane to take off and become airborne.
  • the wing (at) functions as a sail or parachute and is therefore safe for take-off and landings.
  • the construction and arrangement of the wing provides increased lift.
  • This airplane has a simplified construction and is therefore inexpensive to manufacture as a sport plane, cable carrier, or the like while being safe to fly including flight at low altitudes.
  • An airplane comprising a wing frame, said wing frame including a front frame member having a gener ally parabolic configuration in which two leg portions extend rearwardly of the airplane, a rear frame member joining said two leg portions of said front frame member, a center member generally bridging the centers of said front frame member and said rear frame member, a sheet of material disposed over the top of said wing frame and secured to said front, center, and rear frame members, said sheet having a configuration in which the sheet becomes inflated under flight conditions above said wing frame with the amount ofinflation generally progressively increasing from front to rear of the frame, said sheet material having means defining a pair of openings at the rear portion thereof in the area of 4 maximum inflation whereby air under the inflated wing passes out through said openings, said openings in said sheet being disposed in the rear comers of the wing adjacent the juncture between said rear frame member and the two legs of said front frame member, said openings being elongated and extending upwardly from the rear corners of the wing, an airplane body

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Toys (AREA)
US00333798A 1972-05-24 1973-02-20 Airplane Expired - Lifetime US3813060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47051347A JPS498993A (fr) 1972-05-24 1972-05-24

Publications (1)

Publication Number Publication Date
US3813060A true US3813060A (en) 1974-05-28

Family

ID=12884379

Family Applications (1)

Application Number Title Priority Date Filing Date
US00333798A Expired - Lifetime US3813060A (en) 1972-05-24 1973-02-20 Airplane

Country Status (2)

Country Link
US (1) US3813060A (fr)
JP (1) JPS498993A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158448A (en) * 1976-09-14 1979-06-19 Matsuji Mochizuki Airplane with pivotable wing
US4272039A (en) * 1978-10-19 1981-06-09 Hollingsworth Thomas C Electronic hang glider hook-up warning system
CN1070441C (zh) * 1994-03-16 2001-09-05 冯建光 轻型宽翼飞行器
US20060226280A1 (en) * 2004-12-17 2006-10-12 James Alman Stowable design for unmanned aerial vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501154A1 (fr) * 1981-03-06 1982-09-10 Perinet Roland Appareil pour l'epandage aerien
JPH01106106U (fr) * 1987-12-29 1989-07-17
WO2005047103A1 (fr) * 2003-11-14 2005-05-26 Takaji Honjyo Avion cerf-volant pour vol plane

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135483A (en) * 1962-08-20 1964-06-02 Ryan Aeronautical Co Auxiliary boom control system for rogallo type wing aircraft
US3250500A (en) * 1964-03-23 1966-05-10 Russell S Hall Kite construction
GB1075314A (en) * 1965-02-12 1967-07-12 Gq Parachute Comp Ltd Improvements in or relating to parachutes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135483A (en) * 1962-08-20 1964-06-02 Ryan Aeronautical Co Auxiliary boom control system for rogallo type wing aircraft
US3250500A (en) * 1964-03-23 1966-05-10 Russell S Hall Kite construction
GB1075314A (en) * 1965-02-12 1967-07-12 Gq Parachute Comp Ltd Improvements in or relating to parachutes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NASA TN D 3940 Low Speed Wind Tunnel Investigation of Tension Structure Parawings. June, 1967, p. 96, FIG. 43. *
Plattner, Large Reusable Booster Designs Studied ; Feb. 4, 1963, p. 52. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158448A (en) * 1976-09-14 1979-06-19 Matsuji Mochizuki Airplane with pivotable wing
US4272039A (en) * 1978-10-19 1981-06-09 Hollingsworth Thomas C Electronic hang glider hook-up warning system
CN1070441C (zh) * 1994-03-16 2001-09-05 冯建光 轻型宽翼飞行器
US20060226280A1 (en) * 2004-12-17 2006-10-12 James Alman Stowable design for unmanned aerial vehicle

Also Published As

Publication number Publication date
JPS498993A (fr) 1974-01-26

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