John Everest built this beautiful TST-3 Alpin TM wood and composite single-seat ultralight motor glider with a kit imported from the designer/manufacturer – TeST s.r.o. of Brno, Czech Republic (www.test.infoline.cz). The actual build time was 2000 hours over 2.5 years against the estimated time of 800 hours over one year. You can view details of the construction project in Constructor's Corner. The aircraft is designed for self launch and climb to height and then, if atmospheric conditions are suitable, soaring with the retractable engine and pylon stowed within the fuselage. The engine may be restarted in flight. One wheel main undercarriage.

• Span: 13.8 m
• Length: 5.9 m
• Aspect ratio: 17.95:1
• Aerofoil: Wortmann FX 61-184
• Empty weight: 250 kg (actual weight of 19-3870 with engine)
• Stall speed: 37 knots
• Glide ratio: 33:1 at 46 knots
• Minimum sink rate: 150 ft/min at 40 knots
• Climb-out (at 6400 rpm): 500 ft/min
• Cruise (at 5500 rpm): 55 knots
• Vne: 97 knots
• Engine: Rotax 447 fan cooled
• Fuel capacity: 32 litres
• Fuel consumption: 6.1 l/hr (242 litres used over 39.8 engine hours, mainly in climb)
• Take-off distance to 50 feet: 350 m (as quoted)
• Landing over 50 feet: 200 m (as quoted)