The Patroller is an unmanned air vehicle, designed and manufactured jointly by SAGEM and Stemme. It is based on the Stemme S-15 motor-glider. The first flight was in June 2009 at Kemijarvi in Finland; it was shown at the 2009 Paris Airshow.
It completed another series of flight tests in July 2010, which demonstrated it is capable of missions lasting 20–30 hours; it can carry a 250 kg payload (including 80 kg under each wing). The Patroller will carry out imaging and surveillance trials in southern France, detecting forest fires.
Several variants are offered:
Patroller R, used for ground surveillance;
Patroller M, for maritime surveillance;
Patroller S, for homeland security.
The Patroller uses the same ground control station as Sperwer II. A Ku-band datalink is used; range is limited to 200 km (line of sight).
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