With a wingspan longer than the aerofoil of an Embraer Legacy 650, self-launched sailplanes tend to stand out on a business aviation static park.

But the two-seat Stemme S10 is something different besides.

The S10 harnesses solar energy to recharge the batteries powering the avionics and the engine starter, said Karen Stemme, a marketing and sales representative.

Taking a sailplane's reliance on the clean energy of windpower to the next level, the S10 includes a 60kW stack of solar panels attached to a removable fuselage cover aft of the two-seat cockpit.

Stemme S10 solar powered glider
 © Billypix

Germany-based Stemme delivered the first S10 more than a decade ago, and it remains the only sailplane in production with a solar-influenced power supply.

Said Stemme: "It's not easy to develop."

Source: Flight Daily News