Helios Solar Powered Aircraft
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Helios is a pilotless solar powered airplane developed by NASA and AeroVironment
Inc. On 13 August 2001, the Helios Solar Powered Aircraft set an unofficial
world record by a winged aircraft of flying at a sustained altitude above 96,000 feet (29,250 m) for 40 minutes.
Technical Specifications:
Wing span: 75,3 m
Length: 3,6 m
Wing thickness: 0.3 m
Height: 2 m, without upper blades of the propellers
Wing area: 186.6 m2
Mass: 600 kg - unloaded plane
Allowed mass: up to 930 kg
Cargo: up to 330 kg
Propulsion: 14 DC brushless electric motors (the power of each motor is 1,5 kW) with two blades. The weight of each motor is less than 5 kg. Length of both propeller blades is 1,7 m.
Energy source: Bifacial solar cells - dimmensions 1.25" x 2.75" (Front side efficiency 22 %, backside efficiency 11 %) placed on transparent wings. Energy source in the dark are lithium batteries. Fuell cells will be used as main energy source in the dark in the future.
Speed: Typical flight speed is 30 to 40 km/h. The highest speed is 270 km/h.
Flight height: Maximal flight height is 30000 m - typical height depends on flight mission and it is typical 15000 to 22000 m.
Flight: The anticipated authonomy in the future together with fuell cells will reach for uninterupted flights (several months of authonomy).
Materials: All main parrts of the plane are made of carbon fibres and styrofoam. Wings are covered with special designed and produced plastic sheet.
Technical Specifications:
Wing span: 75,3 m
Length: 3,6 m
Wing thickness: 0.3 m
Height: 2 m, without upper blades of the propellers
Wing area: 186.6 m2
Mass: 600 kg - unloaded plane
Allowed mass: up to 930 kg
Cargo: up to 330 kg
Propulsion: 14 DC brushless electric motors (the power of each motor is 1,5 kW) with two blades. The weight of each motor is less than 5 kg. Length of both propeller blades is 1,7 m.
Energy source: Bifacial solar cells - dimmensions 1.25" x 2.75" (Front side efficiency 22 %, backside efficiency 11 %) placed on transparent wings. Energy source in the dark are lithium batteries. Fuell cells will be used as main energy source in the dark in the future.
Speed: Typical flight speed is 30 to 40 km/h. The highest speed is 270 km/h.
Flight height: Maximal flight height is 30000 m - typical height depends on flight mission and it is typical 15000 to 22000 m.
Flight: The anticipated authonomy in the future together with fuell cells will reach for uninterupted flights (several months of authonomy).
Materials: All main parrts of the plane are made of carbon fibres and styrofoam. Wings are covered with special designed and produced plastic sheet.
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