The DEEP DRILLER, loaded as shown in Sample Load Form #5 (Survival), suffers major damage which results in flooding in tank C3S. Your best countermeasure is to __________.
• Damage stability and survival conditions on Sample Load Form #5 • Effect of flooding a centerline vs. wing tank on list and trim • How pumping or counterflooding changes GM, list, and trim
• Look carefully at the location of tank C3S on the plan view and profile: is it on the centerline or off to one side? Is it forward, midships, or aft? How would flooding there change the vessel’s list and trim? • For each choice (counterflood or pump from a specific tank), picture what happens to the weight: are you adding or removing weight, and on which side and at what longitudinal position? How does that affect list, trim, and overall stability (GM)? • Compare the final condition for each option on the Sample Load Form: which option keeps you within survival criteria (positive GM, adequate freeboard, acceptable list/trim) with the least additional damage to stability?
• Verify from the load form whether C3S is already considered lost/flooded and whether pumping from it is realistically effective in a damage case. • Check on the tank plan whether 1P, 8S, and 10S are port or starboard, and their vertical/longitudinal positions; this tells you how much leverage each has to correct list or trim. • Use the hydrostatic/stability data on Sample Load Form #5 to confirm which option leaves you with the safest GM and smallest list while still meeting survival requirements.
No comments yet
Be the first to share your thoughts!