US3582025A - Winged rotary kite - Google Patents

Winged rotary kite Download PDF

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Publication number
US3582025A
US3582025A US807247A US3582025DA US3582025A US 3582025 A US3582025 A US 3582025A US 807247 A US807247 A US 807247A US 3582025D A US3582025D A US 3582025DA US 3582025 A US3582025 A US 3582025A
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United States
Prior art keywords
rotor
wing
kite
fuselage
winged
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
US807247A
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English (en)
Inventor
Lynn D Richardson
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Individual
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Individual
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Publication date
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Publication of US3582025A publication Critical patent/US3582025A/en
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H27/00—Toy aircraft; Other flying toys
    • A63H27/08—Kites
    • A63H27/082—Rotary kites; Kites provided with rotary parts

Definitions

  • This invention relates to a winged rotary kite which has its lift power generated by wind driven rotors and is adaptable for use under normal conditions without the need for a tail, the kite comprising a finlike body to provide directional stability; a member attached to the body for connecting a flexible towline thereto; a wing mounted on and bisected by the body; a pair of axles connected to the distal ends of the wing and extending upwardly therefrom; and a rotor rotatably mounted on each axle, each rotor being spaced a distance above the wing, whereby the rotor as it passes over the wing is maintained in turbulent air rather than in direct airflow thus obtaining less drag on the rotor as it passes over the wing, as compared to the drag on the rotor when it is not over the wing, and by this arrangement causing the turbulent air to be dispersed inwardly from below each rotor toward the fuselage where it is then dumped reward
  • the rotary kite of this invention obviates the need for a tail unit by raising the rotors above the. wing so as to place the rotors in the turbulent air formed above the wing to thereby effect a higher drag on the outside and front of the dish formed above the wing by each of the rotors to providevertical and pitch stability for the kite.
  • This invention relates to a tailless winged, rotor propelled kite comprising. an elongated, thin, flat fuselage; a wing mounted on and bisected by the fuselage; a pair of rotors having a hub; a pair of upwardly extending members connected to the outer ends of the wing to rotatably mount the rotors with the hub of each rotor spaced above and innoncontacting relation to the wing; and a memberconnected to the fuselage for attaching a towline thereto.
  • FIG. 1 is a front elevational view of the kite of thisinvention
  • FIG. 2 is a plan view of the kite
  • FIG. 4 is a fragmentary side view of a rotor as--taken along the line M ofFIG. 2;
  • FIG. 5 is a fragmentary side elevational view as taken along the line 5-5 of FIG. 4; and- FIG. 6 is a fragmentary side elevational view of a modification of this invention.
  • the rotor propelled kite of this invention is indicated generally by thenume ral 10.
  • The. kite 10 generallyincludesa fuselage 11, a wing 12 mountedon. the fuselage 11 and bisected thereby, and a pair of rotors 13 and-14 .rotatably. mounted above the wing .12 bya pair .of members 16 and. 17 extending upwardly from the wing 12 adjacent theouter ends.18 and 19 thereof.
  • the wing 12 (FIGS. 1 and 2) is attached to the fuselage 11 adjacent the top edge 21 thereof and is shaped with a positive dihedral angle of about 5 to about 20 between the bisected wing portions 22 and 23 thereof.
  • the wing 12 is provided with a pair of elongated braces 24 and 26 extending transversely of the fuselage 11, which braces 24 and 26 are secured to the top side 28 of the wing 12.
  • a plurality of blades of 31 and 32 (FIGS. 4 and 5), each having a slight fixed pitch, are rigidly connected to the hub 29 and radially extend therefrom.
  • the blades 31 and 32 may be secured to the hub 29 with a slightly negative angle of incidence, for example less than 10 and with a positive dihedral angle of less than 20.
  • the angle of incidence is important only under low wind conditions since when the wind is of normal velocity, the air drag on the rotor 14 will tend to arch the blades 31 and 32 upwardly.
  • a plurality of elongated support members 33 and 34 are provided. Each support member 33 and 34 extends radially from the hub 29 to approximately one-third the length of the blades 32 and 33 respectively, and attaches, as with glue, to the top surfaces 36 and 37 of the blades 31'and 32 respectively.
  • the blades'31 and 32 are of a length slightly less than the wing portions 22 and 23, such that when mounted, as hereinafter described, the rotating. blades 31 and 32 of the rotors 13'and 14 do not travel an intersecting path (dotted lines, FIG. 2).
  • the elongated arm 41 of'the L-shaped member 17 projects upwardly from the wing 12 adjacent the outer end 19 thereof to form an axle upon which to mount the rotor 14.
  • the axes of the extended arm or axle 41 extends normal to the wing 12, and since the wing 12 is mounted at a positive dihedral angle, the axes of the axle 41 of the members 16 and 17 are inclined upwardly to converge on the vertical plane passing through the fuselage I 1.
  • a spherical bead 42 or the like is provided to mount the rotor 14 (FIGS. 1 and 4) to the axle 41.
  • the bead 42 is snuggly secured to the axle at a predetermined height above the top surface 28of the wing 12. Stated anothcrway, the rotor 14 is spaced above the wing 12 by the bead 42 approximately one-fourth the length of the wing end 19 from the fuselage. 1 1.
  • the rotors are spaced above the wing as described hereinbefore, and whereby the wing in effect blanks out a portion of the dish" from below as best illustrated in FIG. 2.
  • This location of the rotors places them in turbulent air rather than in direct wind flow thereby maintaining a higher drag on the outer and front areas of the dish of each rotor, and causing the air to dump inwardly of the dishes" at the fuselage 11, thereby obtaining vertical and pitch stability normally obtained on other kites and the like by tail surfaces.
  • the modified kite 10' includes a modified fuselage 11' having an extension member 51 coextensive with the top edge 21 of the fuselage ll and extending axially forward therefrom, and a straight leading edge 52.
  • the leading edge 52 connects to the top edge 21 immediately forward of the wing 12 and extends therefrom to connect to the forwardmost end 53 of the bottom edge 34 of the fuselage l l.
  • the extension member 51 is provided with an eyelet 56 or the like for connecting one end 57 of a flexible chord 58 to the fuselage 11'.
  • a second eyelet 59 similar to eyelet 56, is secured to the leading edge 52 of the fuselage 11' adjacent the end 53 of the bottom edge 54 thereof for connecting the opposite end 61 of t the chord 58 to the fuselage 11'.
  • the chord 58 may be of any suitable length, but it has been found that a length at least 1 inch longer then the distance between the eyelets 56 and 59 is most satisfactory.
  • the towline 47 is attached to the chord 58 by a slip knot 62, or the like, such that the towline 47 may be selectively moved along the chord 58 between the eyelets 56 and 59 to compensate for various wind velocities and maintain the kite 10 at the optimum angle of attack.
  • a slip knot 62 or the like, such that the towline 47 may be selectively moved along the chord 58 between the eyelets 56 and 59 to compensate for various wind velocities and maintain the kite 10 at the optimum angle of attack.
  • a winged rotor kite comprising:
  • a tailless fuselage comprising an elongated, thin, flat member
  • each rotor including a hub
  • each of said rotors include a plurality of blades, each of said blades havin a slight itch.

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  • Toys (AREA)
  • Wind Motors (AREA)
US807247A 1969-03-14 1969-03-14 Winged rotary kite Expired - Lifetime US3582025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80724769A 1969-03-14 1969-03-14

Publications (1)

Publication Number Publication Date
US3582025A true US3582025A (en) 1971-06-01

Family

ID=25195919

Family Applications (1)

Application Number Title Priority Date Filing Date
US807247A Expired - Lifetime US3582025A (en) 1969-03-14 1969-03-14 Winged rotary kite

Country Status (4)

Country Link
US (1) US3582025A (enrdf_load_stackoverflow)
JP (1) JPS4818351B1 (enrdf_load_stackoverflow)
DE (1) DE2011749A1 (enrdf_load_stackoverflow)
FR (1) FR2038044A5 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5011099A (en) * 1989-09-07 1991-04-30 Harburg Rudolph W Kite with self induced dihedral adjustable keel and stabilizing sail turbines
US20090021021A1 (en) * 2007-07-17 2009-01-22 Baseload Energy, Inc. Power generation system including multiple motors/generators
US20100013236A1 (en) * 2008-07-18 2010-01-21 Baseload Energy,Inc. Tether handling for airborne electricity generators
US20110057453A1 (en) * 2009-02-26 2011-03-10 Bryan William Roberts Tethered airborne wind-driven power generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9310769U1 (de) * 1993-07-19 1993-09-30 Graichen, Sonja, 78078 Niedereschach Als Spiel- und Sportgerät benutzbarer Lenkdrachen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5011099A (en) * 1989-09-07 1991-04-30 Harburg Rudolph W Kite with self induced dihedral adjustable keel and stabilizing sail turbines
US20090021021A1 (en) * 2007-07-17 2009-01-22 Baseload Energy, Inc. Power generation system including multiple motors/generators
US7675189B2 (en) 2007-07-17 2010-03-09 Baseload Energy, Inc. Power generation system including multiple motors/generators
US20110031344A1 (en) * 2007-07-17 2011-02-10 Baseload Energy, Inc. High voltage flying apparatus employing multiple motors
US8444081B2 (en) 2007-07-17 2013-05-21 Jst, Llc High voltage flying apparatus employing multiple motors
US20100013236A1 (en) * 2008-07-18 2010-01-21 Baseload Energy,Inc. Tether handling for airborne electricity generators
US8350403B2 (en) 2008-07-18 2013-01-08 Baseload Energy, Inc. Tether handling for airborne electricity generators
US8907516B2 (en) 2008-07-18 2014-12-09 Jst Llc Tether handling for airborne electricity generators
US20110057453A1 (en) * 2009-02-26 2011-03-10 Bryan William Roberts Tethered airborne wind-driven power generator

Also Published As

Publication number Publication date
JPS4818351B1 (enrdf_load_stackoverflow) 1973-06-05
DE2011749A1 (enrdf_load_stackoverflow) 1970-10-01
FR2038044A5 (enrdf_load_stackoverflow) 1970-12-31

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