20-HP Teledyne 4-Stroke Engine

According to David Vogel of Vogel's Electro Source, which is marketing an 18- to 20-hp military-surplus Teledyne 4-stroke engine weighing just 63 pounds,* the reported upgrade kit or plans to increase the horsepower to 40 is "old information." Vogel indicates he knows of no way to safely and reliably increase the engine's horsepower to that level, and therefore his company does not have such a kit or plans.

Info: Vogel's Electro Source, 121 Mount Vernon St., Dept. UF, Milford, NH 03055. Phone/fax: (603) 672-1762 * e-mail: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it . *See "Industry Watch: Teledyne 20-Horsepower Engine ­ 4-Cylinder, 4-Stroke, Just 63 Pounds," October '01 Ultralight Flying! magazine