hc = E 􀀗 ***** excellent comfort
hc = 1 􀀗 **** very high comfort
hc = 2 􀀗 *** high comfort
hc = 3 􀀗 ** moderate comfort
hc = 4 􀀗 * acceptable comfort
For cruise ships either with v ≤ 25 kn or
v > 25 kn complying with the respective
GL Rules on Rating Noise and Vibration
for Comfort