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 remaining motors, shaded pole, PSC, and poly-. phase, are the best choices when selecting a motor that. will be speed controlled. The shaded pole motor is the. most economical to use out of these three motors. because of its inherent design, but it is only available in. subfractional to 1/4 horsepower.