A sketch of the origin and progress of steam navigation from authentic documents (1848)
Woodcroft, Bennet, 1803-1879 · London : Taylor, Walton, and Maberly · leaf 108
gine I prefer to all others for obtaining the ne-cessary power to drive the boat; and I assert, that to give the greatestvelocity to a boat with given power of a steam engine, she must bebuilt on the following principles :— First, The boat must be so constructed that, for any determinedweight she… … STEAM NAVIGATION. 69 Secondly, She may be made of a length that her friction will 1809.equal her plus and minus pressure. (Here follow diagrams of theforms of bodies which had been used for the purpose of ascertainingwhich form could be passed through the water with the least power ;also tables…
Steam-navigation · Steamboats · Patents
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