[1] The TST-14J is a Desert Aerospace, LLC modification of the TST-14 motorglider with the addition of a retractable jet engine used for self launching.
The wing tips carry winglets and there are outboard ailerons, two position flaps and upper surface spoilers.
[2] The fuselage of the TST-14J is built from two half shells which incorporate the straight tapered fin.
The TST-14J has a tailwheel undercarriage, with spatted mainwheels on fuselage-mounted, sprung, cantilever legs.
The 45 lb PBS TJ-100 turbine engine [3] requires a two-minute cooldown before retracting into the fuselage.