Frontier MD-II

The Frontier MD-II was an American homebuilt aircraft that was designed and supplied as a kit by Frontier Aircraft Inc of Vail, Colorado, introduced in the 1990s.

Design and development
The MD-II featured a strut-braced high-wing, a two-seats-in-side-by-side configuration enclosed cockpit accessed via doors, fixed conventional landing gear with wheel pants and a single tractor engine.

The aircraft was fabricated from 2024-T3 aluminum sheet. Its 29.50 ft span wing employed a USA 35B airfoil, mounted flaps and had an area of 177.0 sqft. The cabin width was 41 in. The acceptable power range was 65 to 200 hp and the standard powerplant used was the 140 hp Avia M 332 (LOM) four cylinder, inverted, air-cooled, supercharged, inline aircraft engine.

With the Avia engine the MD-II had a typical empty weight of 1150 lb and a gross weight of 2000 lb, giving a useful load of 850 lb. With full fuel of 43 u.s.gal the payload for pilot, passenger and baggage was 592 lb.

The manufacturer estimated the construction time from the supplied kit at 1500 hours.

Operational history
By 1998, the company reported two kits had been sold with two aircraft complete and flying.

In December 2013, no examples were registered with the US Federal Aviation Administration.