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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 Mil Mi-34 is a light helicopter designed by the Mil Moscow Helicopter Plant in either a two or four seat configuration for utility and training. It was first flown on 17 November 1986 and introduced at the Paris Air Show in 1987. The Mi-34 entered production in 1993, and is capable of performing aerobatic manoeuvres, including rolls and loops.
The Kamov Ka-26 is a Soviet light utility helicopter with co-axial rotors.
The IAR 316 is a Romanian license-built Aérospatiale SA 316B Alouette III manufactured by Industria Aeronautică Română (IAR).
The Sikorsky S-67 Blackhawk was a private-venture, prototype attack helicopter built in 1970 with Sikorsky Aircraft research and development (R&D) funds. A tandem, two-seat aircraft designed around the dynamic drive and rotor systems of the Sikorsky S-61, it was designed to serve as an attack helicopter or to transport up to eight troops into combat.
The Piasecki VZ-8 Airgeep was a prototype vertical takeoff and landing (VTOL) aircraft developed by Piasecki Aircraft. The Airgeep was developed to fulfill a U.S. Army Transportation Research Command contract for a flying jeep in 1957. The flying jeep was envisioned to be smaller and easier to fly than a helicopter.
The Aerotécnica AC-12Pepo is a Spanish two-seat light helicopter manufactured in 1956 by Aerotécnica.
The Aerotécnica AC-14 was a Spanish five-seat light helicopter of the 1950s, designed by Jean Cantinieau, based on enlarging his Nord Norelfe design.
The Agusta A.115 was a prototype helicopter flown in 1961 in Italy. It was essentially a Bell 47J-3 with an unclad, tubular tail boom, and powered by a Turbomeca Astazou II turboshaft engine. No production ensued.
The Agusta A.101 was a large prototype transport helicopter developed in Italy during the 1960s. Despite prospective orders from the Italian armed forces, no buyers emerged and the project was abandoned in 1971.
The Sikorsky XH-39, developed by Sikorsky Aircraft in 1954, was the U.S. Army's first turbine-powered helicopter. It was fast and innovative, but ultimately rejected by the United States Army in favor of the Bell UH-1 Iroquois.
The Kamov Ka-126 is a Soviet light utility helicopter with co-axial rotors. Evolved from Ka-26 with engine pods removed from stub wings, fitted with one TVO-100 turboshaft engine positioned on top of fuselage, modified rotor blades, new fuel system.
The Agusta A.105 was an Italian rotorcraft designed by Agusta. It was never developed beyond the prototype stage.
The Saro P.531 is a British all-metal five-seat helicopter designed and built by Saunders-Roe Limited (Saro).
The Curtiss-Wright VZ-7 was a VTOL quadrotor helicopter aircraft designed by the Curtiss-Wright company for the US Army. Like the Chrysler VZ-6 and the VZ-8 Airgeep it was to be a "flying jeep".
The Borgward BFK-1 Kolibri, a.k.a. Borgward-Focke BFK-1 Kolibri, was a German three-seated utility helicopter built by Borgward, designed by Heinrich Focke and was the first German helicopter after World War II. The helicopter first flew on July 8, 1958, in Bremen, piloted by Ewald Rohlfs.
The Alpi Syton AH 130 is an Italian helicopter that was developed from the RotorWay Exec and is produced by Alpi Aviation of Pordenone.
The Konner K1 is an Italian helicopter designed and produced by Konner Srl of Amaro, Friuli. The aircraft is supplied complete and ready-to-fly.
The Kaman K-17 was a two-seat experimental helicopter built by Kaman in the late 1950s. It used a cold-jet rotor system.
The Merckle SM 67 was an experimental helicopter built in West Germany in the late 1950s.
