14 brushless direct-current electric motors, each rated at 2 hp. (1.5 kW), driving two-blade, wide-chord, 79-in. diameter laminar-flow propellers designed for high altitude.
Dimensions
Length:
12 ft
Wingspan:
247 ft
Height:
N/A
Weights
Empty:
1,322 lb
Maximum Takeoff:
2,048 lb
Performance
Speed:
up to 170 mph ground speed at extreme altitude
Ceiling:
100,000 ft., typical endurance mission at 50,000 to 70,000 ft
Endurance:
With solar power, limited to daylight hours plus up to five hours of flight after dark on storage batteries. When equipped with a supplemental electrical energy system for nighttime flight, from several days to several months.
