For the purpose of the calculations required in Sec. 172.225--
(a) Design calculations must include both side and bottom damage, applied separately; and
(b) Damage must consist of the penetrations having the dimensions given in Table 172.235 except that, if the most disabling penetrations would be less than the penetrations described in this paragraph, the smaller penetration must be assumed.
Table 172.235--Extent of Damage
Collision Penetration------------------------------------------------------------------------
Longitudinal extent................... 0.495 L\2/3\ or 47.6 feet.
(1/3 L\2/3\ or 14.5 m),
whichever is less.Transverse extent...................... 4 feet 2 inches (1.25 m). \1\Vertical extent........................ From the baseline upward
without limit.------------------------------------------------------------------------
Grounding Penetration Forward of a Point 0.3L Aft of the Forward
Perpendicular------------------------------------------------------------------------
Longitudinal.......................... 0.495 L\2/3\ or 47.6 feet.
(1/3 L\2/3\ or 14.5 m),
whichever is less.
Transverse............................. B/6 or 32.8 feet (10 m),
whichever is less, but not
less than 16.4 feet (5 m). \1\Vertical extent........................ 0.75 m from the baseline.------------------------------------------------------------------------
Grounding Penetration at Any Other Longitudinal Position------------------------------------------------------------------------
Longitudinal extent................... L/10 or 16.4 feet (5 m),
whichever is less.Transverse............................. 4 feet 2 inches (1.25 m).Vertical extent........................ 2 feet 6 inches (0.75 m) from
the baseline.
------------------------------------------------------------------------
\1\ Damage applied inboard from the vessel's side at right angles to
the centerline at the level of the summer load line assigned under
Subchapter E of this chapter.