JF Ptak Science Books Post 2017
I've noticed a few interesting articles on the circular ship from mid-late 19th century; I don't really have much to say about them except that I appreciate their structure and, well, beauty, and so I'm just sharing them here.
First is "The Russian Imperial Yacht, 'Livadia'", which is an article in Nature, July 22, 1880, appearing on pp 270-274, with several large illustrations, including an elevation and a plan of the ship.
“The Livadia was an imperial yacht of the House of Romanov built in 1879–1880...intended for service on the Black Sea...a radically novel ship conceived by Vice Admiral Andrey Popov, designed by naval architect Erast Gulyaev and built by John Elder & Co. of Govan on Clyde. The Livadia continued Popov's line of circular shipsalthough this time Popov sacrificed geometrical perfection for seagoing capabilities. She had a beam of 153 ft (47 m) against overall length of only 259 ft (79 m). An extreme example of tumblehome architecture, she sported a conventionally shaped superstructure mounted on a wide, flat-bottomed, turbot-shaped submerged hull or pontoon. The Livadia turned out a surprisingly maneuverable and stable ship with a respectable maximum speed of 15.7 knots and her efficiency was comparable to conventional ships. Her performance at sea trials surprised most naval architects and was attributed to the favorable placement of the propellers.”--Wikipedia
Next is this fantastic set of drawings for a proposed circular semi-submerged ship, the work of Donato Topmmasi of Paris, and which appeared February 24, 1877, in the Scientific American, page 115.
And part b:
And Part C:
Another interesting example of this thinking can be seen in Engineering, for 26 May 1868, the work of John Elder (highly-successful Scottish shipbuilder and engineer, 1824-1869):
And these examples from a later issue in that same year from the same journal:
Which is a detail from:
The full text of "A Memoir of John Elder, Engineer and Shipbuilder", by W.J.M. Rankine, 1871, here.
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