American AI is usually American Airlines, and usually appears because of a baggage fee paid at the airport, or a purchase made during a flight. posted 09/11/2012 Helpful (4)
Electric motors are in general, a lot more efficient that internal combustion engines. An average combustion engine has about 18â20%. A formula one engine, has about 50% of an efficiency.
The brushless motor provides greater reliability and efficiency for its low weight and size as compared to the brushed motors. Efficiency for the brushless motor is typically between 85-90% while that of the brushed motor ranges between 75-80%.