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 TB 55-1900-201-45/1
This procedure requires excellent workmanship, and should be pursued with caution.
2-10. Hull Damage.
a. Most hull damage can be readily seen. Cracked and broken members are obvious faults. Likely locations for
cracks or breaks are in areas of high stress or where the structure undergoes a sudden change in shape. The turn of the
bilge is the prime location for breaks of this type. The harder the turn of the bilge, the more change that damage has
been done.
b. Wood hulls are more prone to secondary damage remote from the site of collision or grounding than are steel
hulls. Damage may consist of sprung butts, pulled fastenings, sprung or cracked frames and misalignment of the struc-
ture. When surveying any damaged hull, the entire vessel should be inspected.
2-11. Deficiencies.
a. When deficiencies are encountered, an evaluation must be made to determine their extent and their effect on
seaworthiness. The following factors must be weighed in making this determination.
(1)
Is the defect progressive and, if so, how can its progress be arrested?
(2)
How long will it be before the area in question is next inspected?
(3) Is the work contemplated necessary to restore sea- worthiness or to prevent the vessel from becoming
unseaworthy, or is it a maintenance measure to prolong the life of the vessel?
b. Many deficiencies, particularly surface defects or scars caused by chafing, freezing and other forms of exterior
deterioration are not as serious as they may first appear. Do not be hasty in requiring the correction of minor defects of
this nature in otherwise sound seasoned planking. Specific requirements detailing the nature and extent of required re-
pairs should be written. However, with wooden vessels the general rule "renew as original" where applicable, is not al-
ways practical nor necessarily the best way to effect repairs. Most accepted methods of marine repair may be used as
long as the vessel's strength is not reduced.
2-12. Planking Repair and Joints.
a. When planking is replaced, the frames and other structure shall be thoroughly inspected and placed in good
condition. Holes made by old fastenings shall be thoroughly inspected and placed in good condition. Holes made by old
fastenings will be properly plugged to insure that new fastenings will hold.
2-13
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