Dare, SOY, Lanyu & Brodak, Electric/RC Planes & Accessories

 

In electric-powered models, the powerplant is a battery-powered electric motor. Throttle control is achieved through an electronic speed control (ESC), which regulates the motor's output. The first electric models were equipped with brushed DC motors and rechargeable packs of nickel cadmium cells (NiCad), giving modest flight times of 5–10 minutes. (A fully fueled glow-engine system of similar weight and power would likely provide double the flight-time.) Later electric systems used more-efficient brushless DC motors and higher-capacity nickel metal hydride (NiMh) batteries, yielding considerably improved flight times. The recent development of lithium polymer batteries (LiPoly or LiPo)now permits electric flight-times to approach, and in many cases surpass that of glow-engines – however, the increasing popularity of the much more rugged and durable lithium iron phosphate lithium iron phosphate-celled batteries is increasingly attracting attention away from LiPo packs.

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