Bow Flare Slam - Sea-Swell Check

Bow-flare slam frequency for a ship with significant flare angle - occurs in head seas when bow flare hits the approaching wave.

FlareSlamSeakeeping

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

p_{flare} \approx \tfrac{1}{2} \rho V^2 \tan^2\alpha_f

Symbol	Meaning	Unit
$\alpha_f$	Flare angle from vertical	deg
$V$	Relative horizontal velocity	m/s

Source: Chuang & Milne - SNAME 1971

Bow-flare slam frequency for a ship with significant flare angle - occurs in head seas when bow flare hits the approaching wave.