Back Pennsylvania Aircraft Syndicate XOZ-1
1937

This is the lone Navy XOZ-1, a biplane conversion intended to demonstrate autogiro concepts. Note the four-legged pylon supporting the four-bladed rotor and the absence of a drive shaft to the rotor, which is necessary in a helicopter

The U.S. Navy's single XOZ-1 autogiro was a Consolidated N2Y-1 tandem-seat, biplane trainer (Navy BuNo. A8602) rebuilt in the mid-1930s as an autogiro. Six of the basic N2Y-1 aircraft were purchased after evaluation of an XN2Y-1, originally a civilian Fleet I. These planes were used as familiarization trainers for the Navy "skyhook" pilots who flew fighters from the large Navy airships Akron and Macon.

The XOZ-1 was modified to an autogiro configuration by the Pennsylvania Aircraft Syndicate, with a four-bladed autogiro rotor, held aloft over the forward cockpit by four steel struts, replacing the upper wing. The lower wing was retained and supports added, and the wheeled undercarriage was replaced by twin floats. The two-bladed wooden airscrew was retained, as were the two open, tandem cockpits. Wingspan was 8.33m.

The aircraft was tested by the National Advisory Committee for Aeronautics (predecessor to NASA).

Norman Polmar, Floyd D. Kennedy, Jr. "Military Helicopters", 1985

Technical data for XOZ-1

Engine: 1 x Kinner K-5 radial piston engine, 155hp, rotor diameter: 9.77m, length: 6.5m, height: 3.05m, empty weight: 660kg, loaded weight: 900kg, max speed: 145km/h, cruising speed: 172km/h

Comments 
Michael Edward Reif, e-mail, 07.01.2018

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