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 TM 55-1915-200-SDC
Included in this condition are:
Fixed Ballast
None
Armament
Two 50-Cal. Machine Guns
Boats
15-ft. 5-in. Zodiac
Four Life Rafts
b. Full-load departure condition. This is a typical condition which depicts the loading and the stability characteristics
of the ship when fully loaded with cargo at the beginning of an extended voyage. Ballast tanks are empty.
Full-Load Condition - Draft and Stability Characteristics:
Displacement (D)
4050
Tons
Vertical Center of Gravity (KG)
19.54
Ft.
Longitudinal Center of Buoyancy (LCB)
+3.31
Ft.
Longitudinal Center of Flotation (LCF)
-1.94
Ft.
Longitudinal Center of Gravity (LCG)
-2.27
Ft.
Trimming Lever (TL) = LCG - LCB
-5.58
Ft.
Moment to Trim One Inch (MCTl")
662.9
Ft-Tons
Trim Moment= D x TL = 4050 x 5.58 ft.
22,599.0
Ft-Tons
Trim =
D x TL
=
4050 x -5.58
=
-2.84 Ft.
MCTl" x 12
662.9 x 12
Draft Mean Midships
11.5 Ft.
Draft Aft
12.97 Ft.
Draft Fwd
10.13 Ft.
c. Beaching condition. This is the condition in which the ship should approach the beach prior to landing. In some
cases of damage to the ship, it may not be possible to attain the exact drafts forward and aft which are indicated; an
effort should be made to approach this condition as closely as possible. The slope of keel has been established as 1 in
50, which is suitable for the average ocean beach. For steeper or more gentle shelving beaches, this value may require
adjustment.
Beaching Condition - Draft and Stability Characteristics:
Displacement (D)
2804
Tons
Vertical Center of Gravity (KG)
18.79
Ft.
Longitudinal Center of Buoyancy (LCB)
+4.67
Ft.
Longitudinal Center of Floatation (LCF)
-3.60
Ft.
Longitudinal Center of Gravity (LCG)
-15.28
Ft.
Trimming Lever (TL) = LCG - LCB
-19.95
Ft.
Moment to Trim One Inch (MCT1")
583.6
Ft-Tons
Trim Moment = D x TL = 2804 x 19.95
55,939.8
Ft-Tons
5-17
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