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Saturday 20 August 2016

Preliminary design for an American torpedo battleship dated 15 August 1912


The drawing was made by the US Bureau of Construction&Repair which in 1911 suggested that a ship of this kind should be built under the Fiscal Year 1913 Program. The idea of a battleships with as main armament torpedo tubes and just a few heavy guns was in fact not accepted and never realized.

Displacement 35.500 tons and as dimensions 900 (waterline) x 91 (outside of plating) x 31 (mean) feet. Longitudinal coefficient o.561. The turbine machinery and 31 boilers supplied 104.000 shp allowing a speed of 30 knots and with a speed of 10 knots a range of 8.000 nautical miles. The armament consisted of 16 submerged tubes and 1x4-14” breech loading guns. Allowance was made in weights for 40-3” quick firing guns. The armour consisted of a main side belt with an extreme width of 18’6, depth below waterline 8’6” and a thickness of 9-14”, barbettes 4,5 (light part)-13” (heavy part), turret 5 (roof)-9 (rear)-9-10 (sides)-18” (port), conning tower 6 (tube light)-16” (tube heavy and proper), conning tower 6 (light)-16 (heavy), uptake protection none, protective deck total 120# and splinter deck total thickness 60#.

Displacement 35.500 tons: hull complete 14.600 tons, hull fittings 1.700 tons, protection 7.144 tons, steam engineering 6.600 tons, res. Feed 2/3 supply 693 tons, battery 870 tons, ammunition&2/3 ordnance stores 638 tons, equipment&2/3 equipment stores 520 tons, outfit&2/3 stores 735 tons, oil fuel 2/3 supply 1.740 tons and 190 tons margin/

Source 
The so-called Spring Styles Book 1 (March 1911-September 1925). Naval History and Heritage Command. Lot S-584-022. Preliminary designs prepared by mostly civilians working at the Bureau of Construction and Repair (succeeded by the Bureau of Ships nowadays the Naval Sea Systems Command) under supervision of naval architects of the Navy Construction Corps. A major part of the drawings was presented to the General Board which advices the Secretary of the Navy.