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Disc-planform-aircraft-having-vertical-flight-capability

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Disc planform aircraft having vertical flight capability

Details

Inventors: Webster, Steven N.;
Assignee:
Primary Examiner: Peters, Jr.; Joseph F.
Assistant Examiner: Ellis; Christopher P.
Attorney, Agent or Firm: Litman; Richard C.

An aircraft having a generally circular or disc planform configuration provides the capability of vertical flight through two concentric sets of lifting fans or blades. The two sets may each include a number of individual rings of blades, but both sets are equal in area and rotate oppositely in order to provide nearly equal volumes of airflow, and thus essentially offset any torque reaction due to the rotation of the blade sets. Several engines are provided in the preferred embodiment, with one engine providing power to the lift fan sets and other engines providing thrust for horizontal flight. Other novel features are also disclosed, such as a peripheral aerodynamic control system, power transmission system, and surface vane system. An alternate embodiment includes a peripheral passenger or cargo area, with more conventional rearwardly located aerodynamic controls for horizontal flight.

DETAILED DESCRIPTION By the present invention, an improved aircraft having concentric, counterrotating lifting fans and being capable of vertical flight is disclosed.
Accordingly, one of the objects of the present invention is to provide such an improved aircraft having a generally circular planform.
Another of the objects of the present invention is to provide an improved aircraft in which each of the counterrotating lifting fans or groups of counterrotating lifting fans are of equal areas.
Yet another of the objects of the present invention is to provide an improved aircraft in which the lifting fans are powered by means of turbine engines, which engines further provide thrust for horizontal flight.
Still another of the objects of the present invention is to provide an improved aircraft having an efficient and lightweight structure which combines cooperating elements which are arranged in tension and compression.
A further object of the present invention is to provide an improved aircraft having both a control system providing control at low airspeeds, and an aerodynamic control system for use at higher airspeeds.
An additional object of the present invention is to provide an improved aircraft of generally circular planform, which provides for passenger and/or cargo carriage both in a central area and further in a peripheral area of the craft.
With these and other objects in view which will more readily appear as the nature of the invention is better understood, the invention consists in the novel combination and arrangement of parts hereinafter more fully described, illustrated and claimed with reference being made to the attached drawings.

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