EFC Design 1001-TS (Twin screw Ferris type):
Notes & Illustrations
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Notes: Because the large numbers of standard Ferris wooden ships planned would require the government to resort to practically every proven type of propelling machinery if machinery output was to keep up with hull production, the May 1917 specifications for the Design 1001 Douglas Fir Ship and probably those for the Yellow Pine Ship included the statement that "Twin-screw and geared turbine steam propelling machinery may be substituted subject to approval of owners [the EFC]." For a single-scrw vessel with reciprocating engines, the cylinders were to be of 19", 23 1/4", and 54" in diameter with 42" stroke producing 1400 IHP at 90 RPM. The engines for the twin-screw type had cylinders of 14 3/4", 25", and 42" diameter with 27" stroke and each engine producing 700 IHP at 115 RPM and 900 IHP at 133 RPM. The turbine-driven vessels would have one double reduction geared turbine delivering 1400 SHP with the propeller turning at 100 RPM. In all vessels steam was to be delivered at 190 pounds, either from two three-furnace Scotch boilers or from two water-tube boilers. Of all the builders of Design 1001 ships, only the G. M. Standifer Construction Corp. at Portland, Ore. built the twin screw variant, and none built the Ferris design with turbines. The Peninsula Shipbuilding Co. of Portland, Ore., however, used similar turbines in their Design 1004 ships. In May 1917 the Standifer (then Standifer-Clarkson) shipyard in North Portland, Oregon, with four building ways and several private orders in hand, received an order for ten Ferris Design 1001 ships. Standifer in response expanded his facilities by building a six-way yard across the river in Vancouver, Washington. The twin screw variant was chosen for all ten ships. The first four ships were built at North Portland and the last six at Vancouver. The six ships at Vancouver were followed first by six Design 1075 improved Ballin type ships and then by another batch of six Ballin ships which was cancelled after the end of the war. The four ships at North Portland were eventually followed by another batch of four Ferris ships (propulsion variant unknown), of which the last ship was cancelled and the other three (along with two of the first batch) were laid up without engines. |
| S.S. Belding (Design 1001-TS, EFC Hull 19). Design 1001-TS was a twin-screw variant of Design 1001. Note the lack of an opening forward of the rudder for a single centerline screw. This ship was built by the G. M. Standifer Construction Corp. at North Portland, Ore., and was photographed on trials in the Columbia River on 9 November 1918. (NARA: RG-32-M box 13) (Click photo to enlarge) |
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The G.M. Standifer Construction Corp. Standifer's new yard at Vancouver, Wash., with all six of its twin screw Ferris Design 1001 ships on the ways. The last two, Okiya and Aimwell, on the right, were laid down on 2 October 1917, and the first one, Kineo, on the left, was launched on 30 May 1918. For an earlier view see the Design 1075 page. Photo No. None Source: standifershipyard.com |
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S.S. Okiya (Design 1001-TS, EFC Hull 25) Showing her twin screws during preparations for launching at Vancouver, Wash., on 23 September 1918. Okiya was the fifth of the six twin screw Design 1001 ships built by Standifer at Vancouver. Photo No. None Source: NARA: RG-32-M box 3 |
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