Electrical Generators
The ship was fitted with eight dynamos. Two were powered by 8 cylinder diesel engines, two by high speed impulse turbine engines and four by reciprocating engines. The generators could supply either AC or DC power as required.
Electric Motors
Hood had a variety of motors for everything from ventilation to boat hoists. It is estimated that she containted around 360 motors. The power range of the motors depended on their intended usage - small ventilation fans could use a ¼ hp motor, whereas, the aforementioned boat hoists required motors of 140bhp.
Pumping/Flooding
Hood was equipped with 100 ton submersible pumps to combat flooding. For fire prevention and deck washing, the ship was fitted with a protected fire main. It was charged from 50 ton electrical pumps as well as 75 ton steam-driven fire and bilge pumps in the engine and boiler rooms.
Anchors, Capstans and Cables
As originally fitted, Hood had three bow anchors. One to port and two to starboard. Each one weighed 9.5 tons. Two cable holders and a middle line capstan were provided, all connected to the capstan engine. A third cable holder was provided for the sheet cable for letting go only. The sheet anchor was eventually removed, leaving Hood with two bow anchors. At the stern, a 3 ton anchor was originally fitted. Its capstan was worked by Williams-Janney gear driven by an electric motor. This anchor was later moved to the Shelter Deck and eventually removed from the ship completely. The main anchor cables/chains were made up of 1 ft 8 inch links which were 3 3/8 inches in diameter. The cables carried 40 shackles of cable or 3,600ft for each anchor (with the exception of the sheet anchor, which had about 900ft of cable). By 1941, Hood was reduced to two bow anchors.
Paravanes
Paravanes were stored in two small structures immediately abaft the forward breakwater. They were also known to be mounted to the forward superstructure. These somewhat torpedo shape devices were dragged or towed from lines on the bow and were used to detect mines or obstacles before they could damage the ship.
Communications
Hood was equipped with voice tubes, telephones and loudspeaker systems.
Searchlights
As Completed (1920)
8x 36" Searchlights
- x4 on Searchlight Platform between funnels
- x2 on After Searchlight Platform
- x2 on platform on foremast 4x 24" signaling searchlights on Admiral's Bridge
July 1921 Refit
2x 36" searchlights removed from Searchlight Platform between funnels
September-November 1923 Refit
2x 36" searchlights replaced (as above)
October-December 1924 Refit
2x 36" searchlights once again removed (as above)
November 1925 - July 1926 Refit
Searchlights on After Concentrating Position moved abreast each other
2x 24" signaling searchlights removed
June - October 1936 Refit
36" searchlight platform removed from foremast
Feb-August 1939 Refit
4x 40" searchlights added, one on either side of After Concentrating Position and one either side just aft of number two funnel
2x 24" Signaling light added on bridge
Replacement of 36" searchlights and removal of the platform between the funnels.
Final Outfit (As Sunk)
6 x 40" searchlights (2 just aft of second funnel and 4 on the After Concentrating Position)
4x 24" signaling searchlights
