Anchor Handling Tug/Supply vessel design

[zaim_2102]

Hye all,

Does anyone here expert in AHTS design? I doing a new design, after calculation and almost based on 'scale' from basis ship...

Basis ship parameters:
LOA= 60 m
LWL= 58 m
B = 16 m
T = 4.85 m
D = 6 m
DWT = 1650 tonnes
Cb = 0.6 (assumption)

New ship parameters (calculated):
DWT = 2723 tonne (target)
LOA = 72 (by using Posdunine with constant, C from basis ship)
B = 18.53 m
T = 5.62 m
D = 6.94 m


Could anyone give a comment or suggestion on step for determining of these principle dimensions? and how to estimate the power for engine selection? I don't have any experience before on designing AHTS... could please anyone give me some guidance or any reference...

Many thanks.