Flying machine

• US 3,873,049 A
• Filed: 08/31/1973
• Issued: 03/25/1975
• Est. Priority Date: 07/13/1973
• Status: Expired due to Term

• Current Assignee: Paul V. Horsdal
• Original Assignee: Paul V. Horsdal
• Inventors: Horsdal, Paul V.
• Primary Examiner(s): Blix, Trygve M.
• Assistant Examiner(s): Kelmachter, Barry L.
• Application Number:
  US05/393,285
• Time in Patent Office: 571 Days
• Field of Search: 244/17.11,17.19,17.21,17.23,6,52 46/75 416/9A,91,183,185,223,237,245A
• US Class Current: 244/17.23
• CPC Class Codes: B64C 27/08 with two or more rotors

Abstract

A VTOL flying machine has four rotors rotating about respective vertical shafts and each shaped to draw air downwardly. The rotors are in pairs spaced longitudinally and transversely relative to a hull beneath the rotors, and the machine is propelled forwardly by air discharged rearwardly from between the rotors. Each rotor has an inverted dish-shape with radial slots having upwardly projecting trailing edges for directing air to the underside of the rotor. Baffles control the direction of discharge of the rearwardly discharged air to facilitate turning at low speeds.

Claims

1. A flying machine comprising, in combination;

a hull;

four vertical drive shafts extending upwardly from said hull;

four rotors respectively mounted on said shafts above said hull;

said drive shafts and said rotors being disposed in two pairs, with the two rotors of each pair spaced apart transversely of said machine and with said pairs spaced apart longitudinally of said machine;

means for rotating said vertical drive shafts in directions such that the inboard sides of said rotors travel towards the rear of said machine;

each of said rotors being dish-shaped and having its concave side facing downwardly; and

each of said rotors having means defining a plurality of radial slots therein;

said slot defining means comprising, for each of said slots, a first edge extending upwardly from, and forwardly in the direction of rotation of, the respective one of said rotors and a second edge extending downwardly from, and rearwardly in the direction of rotation of, said respective rotor;

an air baffle structure disposed rearwardly of said rotors for deflecting air discharged rearwardly by said rotors;

a pair of stabilizer flaps projecting horizontally from opposite sides of said hull; and

a tailplane provided rearwardly of said baffle structure.