The Atlas XH-1 Alpha is a prototype attack helicopter built by Atlas Aviation of South Africa, which used it as a concept demonstrator for the then-planned Rooivalk project.
The A-B Helicopters A/W 95 is an American helicopter, produced by A-B Helicopters in the form of plans for amateur construction.
The Yakovlev Yak-24 is a Soviet twin-engine, tandem rotor, transport helicopter developed by Yakovlev in the 1950s. The Yak-24 saw limited use in the Soviet Air Force, and the exact number produced and duration of service are unknown due to inconsistencies in data.
The Lockheed XH-51 was an American single-engine experimental helicopter designed by Lockheed Aircraft, utilizing a rigid rotor and retractable skid landing gear. The XH-51 was selected as the test vehicle for a joint research program conducted by the United States Army and United States Navy to explore rigid rotor technology.
The Agusta A.101 was a large prototype transport helicopter developed in Italy during the course of the 1960s. Despite prospective orders from the Italian armed forces, no buyers emerged and the project was abandoned in 1971.
The Bell R-12 was an American 1940s military utility helicopter built by the Bell Helicopter company.
The Manzolini Libellula was a 1950s Italian co-axial twin-rotor helicopter designed by Ettore Manzolini. "Libellula" is the Italian word for "Dragonfly".
The Bensen B-9 Little Zipster was a small helicopter developed by Igor Bensen in the United States in the 1950s and marketed for home building. Similar in general configuration to Bensen's previous rotor kite and autogyro designs, it consisted of an open aluminum framework but substituted the autorotating main rotor for a coaxial, counter-rotating system of two, two-bladed rotors. A large tailfin provided directional stability, and the aircraft was controlled by a handlebar system extending over the pilot's head to the rotor hub.
The Vortech G-1, also called the Compcop G-1, is an American helicopter that was designed in the 1970s. Plans for amateur construction were originally supplied by Compcop and today are provided by Vortech.
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.
The Matra-Cantinieau MC-101 was an early 1950s French experimental two seat helicopter of conventional tail rotor configuration but with its engine mounted close to the main rotor, above the seating.
The Vortech Skylark is an American helicopter produced by Vortech of Fallston, Maryland. The aircraft is supplied in the form of plans for amateur construction. Vortech also supplies rotor blades for the design.
The Vortech A/W 95 is an American helicopter that was designed by Adams-Wilson as the Adams-Wilson Choppy and now produced in an improved version by Vortech of Fallston, Maryland. The aircraft is supplied in the form of plans for amateur construction. Vortech also supplies rotor blades and other key parts for the design.
The Vortech Shadow is an American autogyro that was designed by Tyler Flight, Inc. and produced by Vortech of Fallston, Maryland. The aircraft is supplied as a kit and also in the form of plans for amateur construction. Vortech also supplies rotor blades for the design.
The Vortech Sparrow is an American autogyro that was produced by Vortech of Fallston, Maryland. When it was available the aircraft was supplied in the form of plans for amateur construction. Vortech also supplied rotor blades and some key parts for the design.
The Vortech Meg-2XH Strap-On is an American helicopter that was designed and produced by Vortech of Fallston, Maryland. Now out of production, when it was available the aircraft was supplied as a kit and also in the form of plans for amateur construction. Vortech also supplied rotor blades for the design.
The Midwest Zodiac Talon-Turbine is an American helicopter that was designed and produced by Midwest Engineering & Design of Overland Park, Kansas. When it was available the aircraft was supplied in the form of plans for amateur construction, but the plans are no longer advertised for sale.
The Showers Skytwister Choppy is an American helicopter that was produced by Showers-Aero of Milton, Pennsylvania, introduced in 1992. Now out of production, when it was available the aircraft was supplied in the form of CAD plans for amateur construction.
The Arrow Coax Livella Uno is a German helicopter under development by Arrow Coax Ultra Light Helicopter of Hornhausen and introduced at the AERO Friedrichshafen airshow in 2015. The aircraft is intended to be supplied as a kit for amateur construction.
The Auroa Helicopters Auroa is a New Zealand helicopter designed and produced by Auroa Helicopters Limited of Manaia, Taranaki, introduced in 2013. The aircraft is supplied complete and ready-to-fly.
