OTHER: Helicopter - Outside - Single Rotor - 2-seat - Firefly - (Sikorsky Electric)

• http://www.sikorsky.com/About+Sikorsky/News/Press+Details?pressvcmid=989b1cb3a2be9210VgnVCM1000004f62529fRCRD
• http://dvice.com/archives/2010/07/sikorsky.php
• http://www.avionews.com/index.php?corpo=see_news_home.php&news_id=1119512&pagina_chiamante=index.php
• http://www.youtube.com/watch?v=oD8TfjDMYT0
• http://www.gizmag.com/sikorsky-project-firefly/15993/ See the end of the article, for the cell type.
• Stated Sikorsky electric helicopter specifications;
• Max Gross weight - 2,150 lb Power 190 hp (142 kW)
• Permanent Magnet electric motor
• Lithium Ion Battery - 45 Ah, 3.6 V, 3 cells in Parallel = 135 Ah, 100 set in series = 360 V
• Forced Air Cooling Endurance - 15 min Max Velocity - 79 kt
• System Efficiency - 79 % (Cruise), 91 % (Max Power efficiency)

 Miscellaneous Information:

• Specifications: Schweizer 300C
• Empty weight: 1100 lb (499 kg)
• Engine:
• Exhaust etc.
• Payload: 950 lb (431 kg)
• Loaded weight: 2050 lb (930 kg)
• Specifications: Firefly
• Battery weight: 1000 lb (454 kg)
• Motor:
• Controller

 Notes:

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