Ship Squat & Shallow Water Sinkage Calculator
Determine dynamic ship squat ($S_{max}$), Bernoulli pressure drop in shallow waterways, under-keel clearance ($UKC$), and bow vs. stern trim changes.
Vessel Geometry & Fairway Channel
Tanker/Bulker ~0.80-0.88, Container ~0.60-0.68
Dynamic Squat & Under-Keel Clearance
Maximum Dynamic Squat
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Dynamic UKC (Under-Keel)
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Depth/Draft h/T
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Static UKC
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Depth Froude Fnh
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Barrass Squat Formulation
S_max = Cb · (V_k² / 100) (open) or 2 · Cb · (V_k² / 100) (confined canal)
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