Ship Particulars          
Length (L)     m  
Breadth (B)     m  
Depth (D)     m  
Draft (T)     m  
Tow Speed In Storm     knots  
Tow Speed In Transit     knots  
Environmental Condition        
Seawater Density (Rho)     kg/m^3  
Wind Speed for Storm Condition   knots  
Wind Speed for Transit Condition   m/s  
Significant Wave Height Hs (In Storm)   m  
Significant Wave Height Hs (In Transit)   m  
Water Current Speed in Storm (Wc)   knots  
Wind Force in Calm Water & towing        
Transverse Windage area after main deck        
Width (B)     m  
Height (H)     m  
Total Area     m^2  
Density of Air     kg/m^3  
Shape factor of Windage area C      
Wind Load In Storm     Ton  
Wind Load In Transit     Ton  
Current Force in Calm Water & towing        
C = 0.4* 1.05 ( choose based on hull shape)      
Current Load In Storm     Ton  
Current Load In Transit     Ton  
Mean Wave Drift Force at zero Speed(Based from DNV-RP_H103)      
Reflection coefficient (Based on DNV rules )      
Wave drift force in Storm      
Wave drift force in Transit   Ton  
Towline pull required (TPR) in Storm   Ton  
Towline pull required (TPR) in Transit   Ton  
Tug Boat efficiency        
Tug Boat Bollard Pull Capacity in Storm   Ton  
Tug Boat Bollard Pull Capacity in Transit   Ton