Monday, November 20, 2006

9. Glow plug engines

Like I wrote earlier, glow plug engines are used in RC plane toys. There are basically two kinds of glow plug engines, 2-stroke and 4-stroke. The difference is that the 2-stroke engine fires once per revolution while the 4-stroke fires once every two revolutions. They also vary in displacement and other characteristics. The displacement is expressed in cubic inches (cu in) or cubic centimeter (cc), and can be from 0.4cu in (6.5cc) all the way to 1.4cu in (23 cc). The output power varies from 1 to 4 BHP. The prices go from 50-60 dollars upward.

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