Take your everyday metal moni motoglider, trick it out with a custom battery pack and you've got the ElectraFlyer C, a small electric airplane that debuted at the AirVenture show in Oshkosh, Wisconsin, last week.The plane, which received its airworthiness certificate in April, features a 5.6 kWh lithium battery with a projected life cycle (the number of times it can be depleted and recharged) of 1,000 cycles. The battery has a max weight of 78 pounds and can be custom-built to fit the available space in an airplane. It provides juice for a motor driving a 45-inch superlight PowerFin propeller made of a foam core surrounded by an outer shell of carbon fiber and glass fabric.
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