"The engine of the Clermont (Fig. 81) was of rather peculiar form, the piston, E, being coupled to the crankshaft, O, by a bellcrank, IHP, and a connectingrod, P Q, the paddlewheel shaft, MN being separate from the crankshaft, and connected with the latter by gearing, O O. The cylinders were 21 inches in diameter by 4 feet stroke. The paddlewheels had buckets 4 feet long, with a dip of 2 feet. Old drawings, made by Fulton's own hand, and showing the engine as it was in 1808, and the engine of a latcr steamer, the Chancellor Livingston, are in the lectureroom of the author at the Stevens Institute of Technology."
http://www.history.rochester.edu/steam/ ... pter5.html
Цилиндр диаметром 21 дюйм (533 мм), ход поршня 4 фута (1220 мм).
Учитывая, что давления пара там были до двух атмосфер максимум, не думаю, что там стояло что-либо толще 10 мм стали.
Дальше можно прикинуть вес двух цилиндров такого размера с поршнями.
Далее по тексту:
"Oliver Evans had, in 1801 or 1802, sent one of his engines,
of about 150 horsepower, to New Orleans, for the purpose of using it to propel a vessel owned by Messrs. McKeever and Valcourt, which was there awaiting it. The engine was actually set up in the boat, but at a low stage of the river, and no trial could be made until the river should again rise, some months later. Having no funds to carry them through so long a period, Evans's agents were induced to remove the engine again, and to set it up in a sawmil1, where it created great astonishment by its extraordinary performance in sawing lumber."
Про Канаду (Квебек, Монреаль!), как доминион Англии - насмешили.
Там-то и анлийского толком не знали.
Новый Орлеан, упоминаемый в связке с сиром Оливером Эвансом - это, кстати, тоже французская колония.
Машину для "Аккомодейшн" сделали в Монреале.
Читать источники кнкд, срочно причём.