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Stemme S12

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S12
Role Motor glider
National origin Germany
Manufacturer Stemme
First flight April 2015
Introduction April 2015
Status Under development (2015)
Number built One prototype

The Stemme S12 is a German high-wing, two-seat motor glider under development by Stemme of Strausberg. It was introduced at AERO Friedrichshafen in April 2015, shortly after its first flight.[1]

Design and development

The Stemme S12 features a cantilever wing, a T-tail, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy and a single retractable engine.[1]

The aircraft is made from composite material. Its 25 m (82.0 ft) span wing employs winglets. The standard engine available will be the 115 hp (86 kW) Rotax 914 F2/S1 four-stroke turbocharged powerplant driving a retractable, folding, variable-pitch propeller. It has glide ratio of 53:1.[1]

Specifications (S12)

Data from Grady[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 25 m (82 ft 0 in)
  • Powerplant: 1 × Rotax 914 F2/S1 four cylinder, liquid and air-cooled, turbocharged, four stroke aircraft engine, 86 kW (115 hp)
  • Propellers: two-bladed retractable, folding, variable-pitch propeller

Performance

  • Cruise speed: 230 km/h (140 mph, 120 kn)
  • Range: 1,530 km (950 mi, 830 nmi)
  • Maximum glide ratio: 53:1

See also

References

  1. ^ a b c d Grady, Mary (15 April 2015). "Stemme Debuts S12 Motorglider At Aero". AVweb. Retrieved 20 April 2015.