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TM 55-1905-219-14-2
2-91. BALLAST SYSTEM.
a.
The landing craft has four sea water ballast tanks. Refer to table 2-21 for description, location, and capacities.
Table 2-21. Ballast Tank Description.
Capacity
Description
Location
Gallons
Liters
Peak
2-8-0-W
2830
10711.6
Starboard
2-18-1-W
3190
12074.2
Port
2-18-2-W
3190
12074.2
Aft
2-66-0-W
2563
9701.0
b.
All the ballast tanks are connected to the ballast piping system.
The peak tank also may be filled as per
paragraph 2-81, or emptied according to paragraph 2-199.
c.
The contents of the ballast tanks is indicated on the tank level indicator (aft engine room) and ballast tank sounds
on the vehicle deck. The sounds are located as follows:
Peak- none
Starboard-frame 23-10 feet 4 inches off center
Port-frame 23-10 feet 4 inches off center
Aft-frame 66-1/2 16 1/2 inches off center
d.
The ballast tanks can be filled or drained by either of two methods: using the fire pump or by gravity.
e.
The following are the procedures for filling and draining the ballast tanks.
DESCRIPTION
PARAGRAPH
Filling Ballast Tanks - Using Gravity
Draining Ballast Tanks - Using Gravity
Filling Ballast Tanks - Using Fire Pump
Draining Ballast Tanks - Using Fire Pump
f.
The contents of the ballast tanks cannot be equalized.
NOTE
No means of ballast transfer is provided on the landing craft.
Change 2
2-429


 


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