The minimum midsummer freeboard (fms) in inches is obtained by the formula:
fms = f(s) − 0.3Ts
where:
f(s) = summer freeboard in inches
Ts = distance in feet between top of keel and the summer load line.
source: CGD 73-49R, 38 FR 12290, May 10, 1973, unless otherwise noted.
cite as: 46 CFR 45.71