Stemme S12

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

Design and development
Based in the Stemme S10, 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 engine with a retractable propeller.

The aircraft is made from composite material. Its 25 m span wing employs winglets. The mid-fuselage-mounted engine is the 115 hp Rotax 914 F2/S1 four-stroke turbocharged powerplant driving a retractable, folding, variable-pitch propeller. Its maximum glide ratio is 53:1.

The $8 million Dzyne Unmanned Long-Endurance Tactical Reconnaissance Aircraft (ULTRA) is an uncrewed derivative deployed as part of an affordable ultra-long endurance ISR demonstration, capable of flights up to 80 hours.