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 span wing employed a USA 35B airfoil, mounted flaps and had an area of. The cabin width was. The acceptable power range was and the standard powerplant used was the Avia M 332 four cylinder, inverted, air-cooled, supercharged, inline aircraft engine.
With the Avia engine the MD-II had a typical empty weight of and a gross weight of, giving a useful load of. With full fuel of the payload for pilot, passenger and baggage was.
The manufacturer estimated the construction time from the supplied kit at 1500 hours.

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].