UFC 4-159-03
3 October 2005
Table 3-8. Recommended Practical Motion Criteria for Moored Vessels
(a) Safe Wave Height Limits for Moored Manned Small Craft
(after PIANC, 1995)
Beam/Quartering Seas
Head Seas
Wave
Maximum
Vessel
Wave
Maximum
Period (sec) Sign Wave
Length (m)
Period (sec)
Sign Wave
Height, Hs
Height, Hs
(m)
(m)
4 to 10
<2.0
0.20
<2.5
0.20
"
2.0-4.0
0.10
2.5-4.0
0.15
"
>4.0
0.15
>4.0
0.20
10-16
<3.0
0.25
<3.5
0.30
"
3.0-5.0
0.15
3.5-5.5
0.20
"
>5.0
0.20
>5.5
0.30
20
<4.0
0.30
<4.5
0.30
"
4.0-6.0
0.15
4.5-7.0
0.25
"
>6.0
0.25
>7.0
0.30
27
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