spreadsheet for towing calculation OF AHTS

DO ANY ONE HAVE SPREADSHEET/FREE SOFTWARE FOR towing calculation OF AHTS
I AM DOING A THESIS ON AHTS,I NEED TO CHECK WHEATHER A PARTICULAR DIMENSION SATISFY A CERTAIN BOLLARD PULL

THE PARENT SHIP DATA
L=67
B=15.5BP=120

SISTER SHIP
L=82
B=16.4BP=150

I NEED TO CHECK WEATHER STABLITY DURING TOWING SATISFY FOR 2ND SHIP
AND TO KNOW WHEATHER 150BP SATISFY FOR 2ND SHIPS DIMENSION

 

Hi Sujith,

Have a look here, look for a towing manual, i hope it can help.

http://www.supsalv.org/00c2_publications.asp?destPage=00c2&pageId=2.6

 

Thanks

Thanks For The Towing Mannual It Has Been Helpful