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 TB 55-1900-201-45/1
of welding in the repair or alteration of existing riveted hulls should be limited as follows:
a. Shell and deck seams involving existing plating thicker than 1/2" should ordinarily not be welded.
b. As previously noted, flush butts between new and existing strakes of shell and deck may be welded. Such welds
must have full
penetration.
c. Lapped butts involving the use of fillet welds should not be used. Welded lapped seams may be used where
plating is 1/2" or less in thickness.
d. For greater thicknesses, replacement should be as original or the design changed so that butt welds can be em-
ployed. A typical method of doing this with in-and-out plating is shown in the sketch below. For joggled plates, see Sec-
tion VI. (E-24) of these notes.
Typical Method of Employing Butt Welds for Greater
Thickness with in-and-out Plating
E-28
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