Estimate the wetted area of a Cape Islander boat, given the vessel mass.
shipAreaFromMass(ms)Ship mass (kg).
Estimated area (m^2).
The method is based on scaling up the results for a single Cape
Islander ship, of displacement 20.46 tonnes, length 11.73m,
beam 4.63m, and draft 1.58m, on the assumption that the wetted area
is proportional to
\(length*(2*draft+beam)\).
This reference area is scaled to
the specified mass, ms, by multiplying by the 2/3
power of the mass ratio.
Note that this is a crude calculation meant as a stop-gap measure, for
estimates values of the Ss argument to parameters().
It should not be used in preference to inferences
made from architectural drawings of a given ship under study.