Kinney HRH


The Kinney HRH is an American helicopter that was designed by Robert Kinney and produced by Vortech, Inc in the form of plans for amateur construction. The aircraft was first shown at Sun 'n Fun in 2002.

Design and development

The HRH was designed to comply with the US experimental – amateur-built rules. It features a single main rotor, a single-seat enclosed cockpit with a windshield, skid-type landing gear and a four-cylinder, air-cooled, four-stroke, Subaru EJ25 automotive engine. It is the high power to weight ratio that gives the aircraft its name.
The aircraft fuselage is made from a mix of welded 4130 steel tube and bolted-together aluminum tubing, with a composite cabin shell. Its diameter two-bladed Waitman composite rotor has a chord of. The tail rotor has a diameter. The aircraft has an empty weight of and a gross weight of, giving a useful load of. With full fuel of the payload is. The HRH can hover in ground effect at and out of ground effect at

Operational history

By January 2013 there was one example, the 2001 prototype, registered in the United States with the Federal Aviation Administration.

Specifications (HRH)