Table D-15 Miscellaneous Comparisons, Measurements and Formulas

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Table D-14 (Cont.) OVERHUNG LOAD (POUNDS) INCLUDING MODIFYING FACTORS

TB-55-1900-201-45-1 Guide to Army Watercraft Survey Inspections Repair Procedures and Repair Specifications Preparation Manual

Table D-15 (Cont.) PAPER MEASURE

TB 55-1900-201-45/1

Table D-15

Miscellaneous Comparisons, Measurements and Formulas

TANK SOUNDINGS CORRECTION

To determine the correct fuel or water sounding in a given double bottom tank, when the vessel's draft is greater

aft than forward (called drag).

Drag of vessel in feet

Length of vessel in feet

Length of double bottom tank in feet

D x LT + LS

D7' X LT100"

Example:

LS700'

1 ft. to be deducted from actual sounding.

CONVERSION TABLE: FRESH WATER AND SEA WATER

The following conversion table is for fresh water and sea water at 16.7 (62 ). Specific gravity of sea water at 15 is

1.025; at 16.7 , 1.0247.

FRESH WATER

SALT WATER

8.337 lb. ......................................... 1 gal. (U.S.)

8.543 lb ................................................. 1 gal.

62.43 lb ............................................ 1 cubic foot

64 to 64.4 lbs. ....................................... 1 cubic foot

268.68 gal. ......................................... 1 long ton

266.22 gal. ............................................ 1 long ton

35.915 cu. Ft ..................................... 1 long ton

35.586 cu. ft ........................................ 1 long ton

35.88 cu. ft. ............................................... 1 ton

7.481 gal. ......................................... 1 cubic foot

7.481 gal. .............................................. 1 cubic foot

CIRCULAR OR ANGULAR MEASURE

60 seconds (60") ........................................................................ 1 minute (1')

60 minutes (60') ......................................................................... 1 degree (1

)

30 degrees ................................................................................. 1 sign

90 degrees ................................................................................. 1 right angle or quadrant

360 degrees ............................................................................... 1 circumference

Note: One degree at the equator is approximately 60 nautical miles.

D-22