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Updated: May 2, 2025
It must be admitted that the modern form of screw-propeller is quite unlike either of these original forms, although they all involve of course the same fundamental principles. Ericsson's propeller may properly be called an engineering success, built on sound principles, but improved and largely modified by the results of later experience and research.
The screw-propeller, in fact, has assumed so important a part in all naval enterprise, that it may not be without interest to trace briefly its rise and progress to the consideration it now commands, and to review, in general terms, the various experiments by which the screw-frigate has been brought to its present high state of efficiency, excelling, for purposes of war, all other kinds of vessels.
Paddle, it was suggested that the screw-propeller might probably be used as an auxiliary power, for occasional use during calms and contrary winds; the vessel to be a sailing-vessel under ordinary circumstances; but to have a marine engine and a screw for exigencies at times when the ship would be brought to a stand-still or even driven backwards.
And a curious fact is that the voyagers on one of these river craft hit upon the principle of the screw-propeller, and put it to effective use.
Why don't they reform their ways of living, instead of replacing a worn-out heart with a new one? They've perfected surgery, that's why! And why haven't they tried the screw-propeller? They've perfected the bird-wing principle!" "But that doesn't explain," objected Billie, "why they've been content with an autocratic system of government." Van Emmon considered this a dig at Powart.
Then from paddle-ships we passed on to those with propellers which were submerged, and therefore much more easy to protect, and I went to watch the first trials of the newly-invented improvements at sea that of our first screw-ship, the Napoleon, a name which was afterwards exchanged for that of Corse, under which she served as a despatch-boat for over forty years of our first ironclad, a screw-ship, too, the Chaptal, built at Asnieres by M. Cave and of the Pomone, the first frigate we built with auxiliary engines, which was fitted with a screw-propeller designed by a Swedish engineer, Mr.
Ericsson's name in the popular mind has been most commonly associated with the "Monitor" and her fight with the "Merrimac" in the Civil War, and next, probably, with the screw-propeller as a means of marine propulsion. It will, therefore, be proper at the present point to refer in some further detail to the circumstances connected with his relation to the introduction of the screw-propeller.
Their progress was slow, for the screw-propeller was more than once fouled by the thick weed, through which they ploughed their way.
The screw-propeller of a ship is just a spiralifer placed horizontally, acting on water instead of air, and having a vessel placed in front of it. Now, Monsieur Nadar's aerial locomotive is a huge spiralifer, made strong enough to carry up a steam-engine which shall keep it perpetually spinning, and, therefore, perpetually ascending.
Although her sails were spread to catch the light breeze, her chief motive power at the time was a screw-propeller. "Yes, it must be alive," said Oolichuk to Akeetolik, with a look of solemn awe. "The white men do not paddle. See, the oomiak has a tail and wags it!" "Oh! do let us run away!" whispered the trembling Oblooria, as she took shelter behind Tekkona.
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