Watermanship Page: 69
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d. Barracks bag or pillow case. Wet or dampen the
bag and proceed as with trousers. (See fig. 40a.) After
entering the water, hold the bag with both arms to pre-
vent overturning. (See fig. 40b.) If sufficient air has
not been trapped, take a big breath, submerge, exhale
into the mouth of the bag, and rise to the surface.
e. When jumping with sheet, poncho, squares of
canvas. Gather or knot the four corners to form a bag.
Proceed as outlined above.
37. JUMPING INTO OIL OR FLAME. a. GeneraL
Ships normally carry their fuel oil in tanks around the
sides which may be burst by bombs or torpedoes, releas-
ing the oil over the water. Oils are classified as thin
oils and thick oils. Fuel oil for ships is heavy oil, but
thin oil may be on board and be spread by the explosion.
Thick oils generally are not inflammable, but are ex-
tremely difficult to move through, whether swimming or
in a boat. Never jump into or try to swim through
thick oil. Distance from the ship to which oil or flames
spread depends upon the following:
(1) Speed of ship. If the ship is making headway the
oil will stream off to the rear. If the ship is still, the oil
may surround the ship.
(2) Wind. The wind may blow the oil or flame away
from or back to the ship.
(3) Part of ship hit.
(4) State of sea. Whether smooth or rough.
(5) Temperature of water. In cold water the oil may
congeal and remain in one area.
(6) Amount of oil on the water. As the oil layer
spreads it gets thinner until it can no longer spread.
b. Precautions. When necessary to jump from a ship,
and there is surface oil or flame, observe the following
precautions in addition to those outlined in paragraphs
10 and 35.
(1) Remove your life preserver 'and anything else
which might carry you to the surface into oil or flame.
Take off your shoes, but keep shirt, trousers, and socks.
Here’s what’s next.
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United States. War Department. Watermanship, book, April 25, 1944; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc96650/m1/75/: accessed February 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.