Marske XM-1 explained
The
Marske XM-1 was an American mid-wing, single-seat,
experimental tailless glider that was designed and built by Jim Marske in 1957.
[1] [2] [3] [4] Experimentation with the XM-1 lead to the final configuration of the later Marske Pioneer.
Design and development
The first of Marske's flying wings was the XM-1, a design inspired by the flying wing designs of Charles Fauvel and Al Backstrom. He built the XM-1 when he was 19 years old. The aircraft went through several versions, each a modification of the same basic airframe as Marske experimented with configurations. The aircraft started off with fins on the wing tips and was later converted to a single fin at the rear of the short fuselage in its "XM-1D" configuration.
The XM-1 was built with a welded steel tube fuselage covered in fiberglass. The 401NaN1 wing was fabricated from wood and covered with doped aircraft fabric. The wing employed a 14% Fauvel airfoil. The landing gear was a fixed monowheel.
Only one XM-1 was built. It was registered with the US Federal Aviation Administration in the Experimental - Amateur-built category.
Operational history
The XM-1 was described by Soaring Magazine as "easy to fly". The aircraft was stall and spin proof. Marske sold the aircraft and it went through a series of owners. The XM-1 was later removed from the FAA register and likely no longer exists.
Variants
- XM-1-A
Initial configuration with wing tip fins and rudders.
- XM-1-B
with minor improvements over the XM-1-A
- XM-1-C
Modified with a central fin only.
- XM-1D
Final configuration with a central fin and rudder.References
- Book: Shenstone, B.S.. The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II. 1963. Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. Zurich. 226–227. 1st. K.G. Wilkinson. English, French, German.
- Rogers. Bennett. 1974 Sailplane Directory, Soaring Magazine. Soaring Magazine. August 1974. 96. Soaring Society of America.
- Web site: Make / Model Inquiry Results. 6 August 2011. Federal Aviation Administration. August 2011.
- Web site: The Flying Wings of Jim Marske. 20 March 2011. Marske. Jim. n.d.. https://web.archive.org/web/20051231065821/http://www.marskeaircraft.com/flyingwings.html. 31 December 2005. dead.
- Web site: About Jim Marske. 20 March 2011. Marske. Jim. n.d.. https://web.archive.org/web/20101127055747/http://www.marskeaircraft.com/aboutus.html. 27 November 2010. dead.
Notes and References
- Rogers. Bennett. 1974 Sailplane Directory, Soaring Magazine. Soaring Magazine. August 1974. 96. Soaring Society of America.
- Web site: Make / Model Inquiry Results. 6 August 2011. Federal Aviation Administration. August 2011.
- Web site: The Flying Wings of Jim Marske. 20 March 2011. Marske. Jim. n.d.. https://web.archive.org/web/20051231065821/http://www.marskeaircraft.com/flyingwings.html. 31 December 2005. dead.
- Web site: About Jim Marske. 20 March 2011. Marske. Jim. n.d.. https://web.archive.org/web/20101127055747/http://www.marskeaircraft.com/aboutus.html. 27 November 2010. dead.
