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I'm a newb and don't want to risk screwing anything with an edit, yet, so I'll just comment for now. The "1958 18 horsepower Johnson engine" on the Penn Yan 14 foot is pretty clearly not the stated engine. It is a 25 horsepower Johnson outboard, 1972 model year.
2ef2 —Preceding unsigned comment added by 22.214.171.124 (talk) 00:32, 24 March 2009 (UTC)
The first motorboat not powered by a steam engine was concieved by Étienne Lenoir in 1861, not by Daimler and Maybach. Lenoir used his own gas engine, while Daimler and Maybach were first in using an internal combustion engine in 1886.--Chief tin cloud (talk) 22:27, 1 June 2019 (UTC)