Translate

Monday 8 February 2016

Preliminary design for the American battleship No. 40 [New Mexico] dated 6 October 1913


Drawing S 584-34 made by the Bureau of Construction and repair for a battleship to be built under fiscal year 1915. One of the five preliminary designs made for the New Mexico-class battleships (1) and sent to the Executive Committee of the Navy’s General Board on 10 October 1913.

Normal displacement 31.000 ton: hull complete 13.381 ton, hull fittings 1.300 ton, protection 8.831 ton, steam engineering 2.400 ton, reserve feed 2/3 supply 221 ton, battery 1.110 ton, ammunition& 2/3 ordnance stores 989 ton, equipment&2/3 equipment stores and outfir&2/3 stores 1.073 ton, oil fuel supply 1.386 ton and margin 309 ton. Dimensions 600’ x 94.0’ (outside of plating) x 29.25’. Block coefficient 0.658, longitudinal coefficient 0.671 and midship section coefficient 0.980. Armament consisted of 3x2-16” breech loading guns, 22-5” guns and 4 submerged torpedo tubes. The machinery consisted of turbines and 12 boilers divided over 3 room supplying 35.800 shp allowing a speed of 21 knots and with a speed of 10 knots a range of 8.000 nautical miles. The armour consisted of a main side belt with an extreme width of 17’4 5/8”, depth below waterline 8’6” and a thickness of 17-17.19”, barbettes protected by 5.5”(light parts)-16” (heavy parts), turrets 6” (roof)-11 (rear)-11/12.25” (sides)-22.5” (port), conning tower proper and fire control tower by 17”, conning tower tube 6” (light)-17” (heavy), uptake protection 13”, protective deck total 150≠ and splinter deck total thickness 80≠+60≠.

Note
1.The New Mexico (BB-40) was laid down at the New York Navy Yard on 14 October 1915, launched on 13 April 1917 and commissioned on 20 May 1918.

Source the so-called Spring Styles Book 1 (March 1911-September 1925). Naval History and Heritage Command. Lot S-584. 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 is presented to the General Board which adviced the Secretary of the Navy.