Roadable Aircraft Of Adolph R. Perl

U.S. Patent #2,573,271 - October 30, 1951

The Roadable Aircraft Of Adolph R. Perl

Application Date
June 30 1947
Serial No. 758059 *

"My invention relates to a roadable aircraft, more particularly to an aircraft having folded multiple wings and retractable tail boom, and the objects of my invention are:

First, to provide an aircraft of this class which can be very readily and very quickly converted from an aircraft to a roadable vehicle;

Second,to provide a roadable aircraft of this class in which the wings are foldable into the body of the fusilage longitudinally thereof, presenting an overall breadth of the roadable aircraft at the fusilage portion thereof substantially equal to the chord of the wings when in folded position;

Third, to provide a roadable aircraft of this class in which the center of gravity thereof is changed by the pivotal movement of the wings when folding, whereby forward movement of said center of gravity is changed to the desirable position for roadwork and is proper with respect to the wing when the wings are in an extended position for flight;

Fourth, to provide a roadable aircraft of this class having a retractable tail boom which greatly reduces the overall length of the vehicle when operated on the ground;




Detail Showing Position Of Folded Wings
Detail Showing Construction Of Power Train

Fifth, to provide an aircraft having novel folding wings which are retractable into the fuselage of the said aircraft;

Sixth,to provide a roadable aircraft of this class having a novel airscoop in connection with the doors of the fuselage thereof for directing air backwardly into the engine at the rear of said fuselage;

Seventh, to provide a roadable aircraft of this class which is properly balanced when in various operating conditions and in which the wings thereof are foldable in superimposed relationship to each other for attaining such balance;

* This text is a transcript from the Letters Patent.

Eighth, to provide a novel means for folding aircraft wings into superimposed relationship with each other whereby a very compact roadable aircraft may be produced;

Ninth, to provide a roadable aircraft of this class having four wheels which operate equally as well on the ground or in connection with the aircraft when taking off or landing; and

Tenth, to provide a roadable aircraft of this class which is very simple and economical of construction in accordance with its utility, efficiency in operation and which will not readily deteriorate or get out of order."

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