Catamaran hull Shape Ratios from MAXSURF default models

Selection of Principal Particulars of Catamaran Vessel:

Maxsurf catamaran Ratios:

Catamaran Ferry Pro –

L_BP/B_OA = 2.64

B_OA/D = 2.21

B_OA/B_H1= 4.3

C_b            = 0.581

Catamaran-

L_BP/B_OA = 3.43

B_OA/D = 2.75

B_OA/B_H1= 3.00

C_b            = 0.671

MultiChineCat-

L_BP/B_OA = 2.27

B_OA/D = 2.11

B_OA/B_H1= 3.08

C_b            = 0.476

Simple Cat 6 Surface-

L_BP/B_OA = 2.10

B_OA/D = 3

B_OA/B_H1= 4.5

C_b            = 0.638

So, we may conclude a range, for the ratios from the above hulls-

L_BP/B_OA = 2.10-3.43

B_OA/D = 2.11-3.00

B_OA/B_H1= 3.00-4.5

C_b            = 0.476 – 0.671

Now, we choose our length between perpendicular of the vessel to be 30 m

So, from the above ratio’s we have:

L_BP                = 30 m

B_OA               =  m

                = 12 m

D             =  m

                = 4 m

B_H1          =  m

                = 3 m

Our C_b = 0.671