Unformatted text preview: instead of JetA. c) Derive an equation for the range of a batterypowered aircraft in steadylevel flight. Express the range in terms of L/D, propulsion system efficiency, battery mass and heating value, and aircraft weight. Estimate the range of a B777 if the fuel was taken out and replaced with its equivalent weight in batteries. “FUEL” Heating Value (MJ/kg) Density (kg/m 3 ) JetA 42.8 800 Liquid Hydrogen 120 70 Batteries 2.5 8000...
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 Fall '05
 MarkDrela
 Mass, Web page, Wing, Fuel cell, Ian A. Waitz

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