Marske XM-1

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 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. ==Specifications (XM-1B) ==