History of the U.S.S. Leviathan, cruiser and transport forces, United States Atlantic fleet: Compiled from the ship's log and data gathered by the history committee on board the shipU.S.S. Leviathan History Committee
History
History of the U.S.S. Leviathan, cruiser and transport forces, United States Atlantic fleet: Compiled from the ship's log and data gathered by the history committee on board the ship
U.S.S. Leviathan History Committee
Leviathan (Steamship); Vaterland (Steamship); World War, 1914-1918 -- Naval operations, American
Previous to setting the ship on the blocks 12 sighting battons were
erected along the level of “B” deck from stem to stem, so that if the
ship was strained in any way it could be readily noted. A piano wire
was also stretched from side to side at the top of the thwartships coal
bunkers amidships and connected to a spring balance, so that any opening
up effect, due to the divers not properly packing the main beds, would
immediately show.
As soon as the stern touched the blocks the top row of side shores were
set up commencing from aft. These shores were spaced every 5 frames, or
about 15 feet centers. Altogether there were three rows of these side
shores. The water was then lowered to a depth of 32 feet and the water
maintained at this depth while the divers packed the main, inner and
outer beds. As soon as possible after the water reached 32 feet, the
water in all the tanks was pumped out with the exception of the feed
tanks and No. 23 and 24 fresh water service tanks. The stem and side
anchors were lowered and the pig iron in No. 17 tank, amounting to about
473 tons, was removed.
The water was maintained in the dock at 32 feet, because at this depth
the ship was just resting nicely on the center line blocks and would not
compress the soft wood caps. We did not want any unnecessary weight on
the center line blocks until the divers had finished their work on the
main and outer beds, so that when the dock was finally pumped out, the
ship would imbed itself in the soft wood capping at a uniform depth. This
worked out exceptionally well, and was remarkably uniform on all beds,
amounting to about 2 inches at the end of the third day. On the third
day the spring balance on the piano wire registered less than an ounce
difference. The sighting battons showed that she had settled amidships
about 1⅜ inches. After floating she returned to ⅛ inch of the original
condition. This I believe to be the natural hog of the ship.
The undocking of the ship was somewhat unusual in that 7,800 tons of
coal were placed aboard while she was in dry dock, 1,400 tons while the
dock was absolutely dry and the balance of the coal, with from 35 to 37
feet of water in the dock. This was not sufficient to float the ship,
and she still rested upon the docking beds. Immediately before letting
in the water, all the bilge and hanging shores, and shores under, the
stem and stern that would in any way injure the ship should she take a
sudden list, or any undue change of trim, were removed. These shores
were removed at about 15 minute intervals, so that the ship could adjust
itself and any undue settling could be noticed. During this operation
men were stationed at the sighting battons and the piano wire. Water was
then admitted as quickly as possible to 35 feet and maintained at this
level while additional coal was put aboard from barges admitted to the
dock at low tide. This was a rather trying ordeal, but was successfully
accomplished in 5 days.
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