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Title 46

Displaying title 46, up to date as of 9/16/2021. Title 46 was last amended 9/10/2021.

Title 46

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§ 172.135 Extent of damage.

For the purpose of § 172.133 -

(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 172.135 except that, if the most disabling penetrations would be less than the penetrations given in Table 172.135, the smaller penetration must be assumed.

Table 172.135 - Extent of Damage

Collision Penetration
Longitudinal extent 0.495L 2/3 or 47.6 feet (( 1/3)L 2/3 or 14.5m) whichever is shorter.
Transverse extent1 B/5 or 37.74 feet (11.5m)2 whichever is shorter.
Vertical extent From the baseline upward without limit.
Grounding Penetration At the Forward End But Excluding Any Damage Aft of a Point 0.3L Aft of the Forward Perpendicular
Longitudinal extent L/10.
Transverse extent B/6 or 32.81 feet (10m) whichever is shorter.
Vertical extent from the baseline upward B/15 or 19.7 feet (6m) whichever is shorter.
Grounding Penetration At Any Other Longitudinal Position
Longitudinal extent L/10 or 16.41 feet (5m) whichever is shorter.
Transverse extent 16.41 feet (5m).
Vertical extent from the baseline upward B/15 or 19.7 feet (6m) whichever is shorter.