Watermanship Page: 93
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vide shelter against spray and wind. Sometimes these
measures will not give sufficient protection and you will
have to share blankets and huddle together to keep
warm. In wet weather, keep waterproof clothing on
even if clothes underneath are wet.
b. Protection against sun and heat. Rig up an awn-
ing if possible and try to provide some cover for the man
at the tiller. Do not take off too many clothes; they will
protect your skin against sunburn. This also applies to
legs and feet, which should be covered or in the shade.
Even in cloudy weather you can get badly sunburned.
Protect eyes from glare of sun by improvising some kind
of eyeshade. Tie a cloth or bandage over nose; this will
cut off glare from the water when you are looking
55. NAVIGATION. a. General. Before the ship is aban-
doned, its location and the direction and distance to
land are given to all men aboard. Lifeboats contain
simple navigation charts and a compass. Try to reach a
sea or air route where there is greater chance of being
rescued. If the sea and air routes are not known, it is
best to set a course east or west. Keeping on the move
helps maintain morale. If a compass is not available,
determine direction from the sun and stars.
b. Determination of direction by using watch and sun.
When the sun is visible, a watch can be used to deter-
mine true south or north with an error of less than 80.
This method is difficult when the sun is high and is of
little or no use in the tropics; furthermore, the watch
must be on standard time. If it is subject to corrections
for war time, daylight saving time, or zone time, it must
be set back accordingly.
(1) In the northern hemisphere, turn the watch face
up, and point the hour hand at the sun. To aid in cor-
rect pointing, hold vertically a pencil or other straight,
slender stick so that it casts a shadow across the face of
the watch. Rotate the watch to bring the hour hand
into this shadow. Draw a line from thO center of the
watch dial through the midpoint of the smaller arc be-
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United States. War Department. Watermanship, book, April 25, 1944; Washington, D.C.. (digital.library.unt.edu/ark:/67531/metadc96650/m1/99/: accessed March 28, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.