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[quote]QUOTE: Wouldnt the top speed of a geared engine be based on the gearing provided for the engine? [/quote] Ok, there's three (actually 4, but the foutrth really doesn't count) types of Geared engines: Shay's, Heisler's and Climax's, Climax's were of a higher gear ratio and were designed for heavy hauling, but the drawback is very slow speeds, it had 2 cylinders that connected to a common lateral driveshaft. Hiesler's were similar to the Climax, except they were a V2, where the cylinders connected to a common crank shaft that drove the lateral driveshaft (similar to the common automotive setup now), again the Heisler was geared to pull hard and slow. Then we have the Shay's, which went through many incarnations. First they had two cylinders, and a gear ratio of 4:1 to 6:1, and did infact move a barely faster than a walking man. Lima continued to improve the shay, and added a third cylinder, as well as improved driveshafts and gearing to bring the speeds up. the Shay's at the end were infact capable of around 50 MPH unloaded. Jay
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