# Initial floating-body stability screening
# Scope: Small-angle metacentric roll restoring moment with supplied GM; no hull hydrostatics.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

mass = 100 kg
metacentricHeight = 0.2 m
heel = 5 deg
gravity = 9.81 m/s^2

moment := mass*gravity*metacentricHeight*sin(heel) [N*m]

check positive initial stability: metacentricHeight > 0 m

scenario alternative: mass = 80 kg