Millennium MH-1 explained

The Millennium MH-1 is an American helicopter based on the now out of production Revolution Mini-500 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.^{[1] [2]}

Design and development

The MH-1 was originally provided as a series of kits to upgrade old Mini-500 airframes, allowing the owner to modify them to MH-1 standards. The kits include a new Yamaha engine of 1300NaN0, that replaces the Mini-500's 640NaN0 Rotax 582, 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.^{[2] [3]}

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. Its 191NaN1 diameter two-bladed rotor has a chord of 81NaN1. The aircraft has an empty weight of 6000NaN0 and a gross weight of 11000NaN0, giving a useful load of 5000NaN0.

The Federal Aviation Administration approved the MH-1 conversion as a distinct aircraft type.

Notes and References

1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 192. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
2. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 210. Flying Pages Europe SARL, 2015.
3. Web site: Store. 5 February 2013. Millennium Helicopter. n.d..