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Helios Specifications
Primary Function: Remotely piloted solar-powered airplane
Contractor: AeroVironment
Crew: None
Unit Cost: N/A
Powerplant
  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.
Armament
  N/A
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Helios Achievements
  • Reached a world-record altitude of 96,863 feet
  • Sustained flight above 96,000 feet for more than 40 minutes during a test flight near Hawaii
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Helios Photos
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