The XJ01 is a development of the Guépard AX 02 that was designed by Xavier Averso in the 1980s and first offered as plans in 1987. Tilquin decided not to publish plans and instead offer the updated version as a kit, starting in 2011. The kit provided by Guépard II Team included the fuselage frame but did not include the rotor system, propeller, engine or instruments.[1]
The company seems to have gone out of business at the end of 2015 and kit production ended.[2]
The design features a single main rotor, a single-seat open cockpit without a windshield, tricycle landing gear without wheel pants and a twin-cylinder, liquid-cooled, two-stroke, dual-ignition 640NaN0 Rotax 582 engine in pusher configuration.[1]
The aircraft fuselage is made from bolted-together aluminum tubing. Its two-bladed rotor has a diameter of 6.91NaN1 and a chord of 221NaN1. The aircraft has a typical empty weight of 1720NaN0 and a gross weight of 3000NaN0, giving a useful load of 1280NaN0. With full fuel of the payload for the pilot and baggage is 920NaN0.[1]