Aero Synergie J300 Joker

The Aero Synergie J300 Joker is a French ultralight aircraft that was designed and produced by Sauper/ALMS and later by Aero Synergie. The aircraft was supplied as a kit for amateur construction and also as a complete ready-to-fly aircraft.[1]

Aero Synergie J300 Joker
Role Ultralight aircraft
National origin France
Manufacturer Sauper/ALMS
Aero Synergie
Introduction 1990s
Status Production completed
Unit cost
38,465 (2011)

Design and development

The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a strut-braced high-wing, a two seats in side-by-side configuration enclosed cockpit, tricycle landing gear or conventional landing gear and a single engine in tractor configuration.[1]

The aircraft is made from welded steel tubing, covered in doped aircraft fabric. Its 9.04 m (29.7 ft) span wing employs dual parallel struts. The standard engine fitted is the 80 hp (60 kW) Rotax 912UL four-stroke powerplant, with the 100 hp (75 kW) Rotax 912ULS optional.[1]

Originally produced by Sauper/ALMS the design was later manufactured by Aero Synergie. Production was halted circa 2011, although parts were still available in 2012.[2]

Operational history

Popular in Europe and Africa as a trainer, it also found use as a personal aircraft due to its simple construction and ease of handling.[1]

Specifications (J300)

Data from Bayerl[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 9.04 m (29 ft 8 in)
  • Wing area: 15.6 m2 (168 sq ft)
  • Empty weight: 272 kg (600 lb)
  • Gross weight: 472.5 kg (1,042 lb)
  • Fuel capacity: 94 litres (21 imp gal; 25 US gal)
  • Powerplant: 1 × Rotax 912ULS four cylinder, liquid and air-cooled, four stroke, 75 kW (101 hp)


  • Maximum speed: 180 km/h (110 mph, 97 kn)
  • Cruise speed: 140 km/h (87 mph, 76 kn)
  • Stall speed: 58 km/h (36 mph, 31 kn)
  • Rate of climb: 5 m/s (980 ft/min)


  1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 14. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. Aero Synergie (n.d.). "J300". Archived from the original on 3 April 2012. Retrieved 15 April 2012.
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