The Millennium MH-1 is an American

helicopter A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes ...

based on the now out of production

Revolution Mini-500 The Revolution Mini-500 is a 1990s American single-seat light helicopter, designed and built by Revolution Helicopter Corporation as a kit for homebuilding. Revolution Helicopter went out of business in November 1999 and kits are no longer a ...

and produced by Millennium Helicopter. The aircraft is supplied as a series of kits for amateur modification of existing Mini 500s and as a new kit to build from scratch.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 192. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 210. Flying Pages Europe SARL, 2015.

Design and development

The MH-1 was originally provided as a series of kits to upgrade old Mini-500

airframe The mechanical structure of an aircraft is known as the airframe. This structure is typically considered to include the fuselage, undercarriage, empennage and wings, and excludes the propulsion system. Airframe design is a field of aerospa ...

s, allowing the owner to modify them to MH-1 standards. The kits include a new

Yamaha Yamaha may refer to: * Yamaha Corporation, a Japanese company with a wide range of products and services, established in 1887. The company is the largest shareholder of Yamaha Motor Company (below). ** Yamaha Music Foundation, an organization estab ...

engine of , that replaces the Mini-500's

Rotax 582 The Rotax 582 is a two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating ...

, plus a new mount for the Yamaha engine. The remaining kits cover modifications to the main transmission, the tail, main drive and clutch basket, radiator fans and relay and the rotor head. The aircraft can also be built new from a complete kit. In either case the resulting MH-1 complies with the US ''experimental - amateur-built'' rules. The MH-1 features a single main rotor with a two-bladed tail rotor, a single-seat enclosed cockpit with a windshield and skid-type

landing gear Landing gear is the undercarriage of an aircraft or spacecraft that is used for takeoff or landing. For aircraft it is generally needed for both. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin ...

. Its diameter two-bladed rotor has a chord of . The aircraft has an empty weight of and a gross weight of , giving a useful load of . The

Federal Aviation Administration The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...

approved the MH-1 conversion as a distinct aircraft type.

Specifications (version)

References

External links

*{{Official website, http://www.millenniumhelicopters.com/ 2000s United States sport aircraft 2000s United States helicopters Homebuilt aircraft Single-engined piston helicopters