Friday, February 19, 2010

Estimating Ship's Gross Tonnage

On a past post I explained a simplified method to do an aproximate estimation of a ship's gross tonnage and an exact calculation of the compensated gross tonnage. Herein I enclose a simple input form to enter ship's main dimensions that produce results as explained in the mentioned past post.


Gross Tonnage GT, Compensated Gross Tonnage CGT

 

If you know the actual gross tonnage just input its value in the text box (cyan color), and click button "Calculate". If you don't know the actual gross tonnage, input ship's dimensions and click "Calculate"


Ship type 
Gross Tonnage GT:
Length PP (m):
Breadth (m):
Depth (m):
Block coefficient:


Result GT Result CGT

2 comments:

Anonymous said...

Dear Sir :
As we know that CGT=A*GT^B from OECD pulished. Could you please tell us A and B about coaster??

Best Regard
Lester

Juan José Azpiroz said...

Dear Mr. Lester:
For coasters coefficients are
A = 27 B = 0,64
In my previous post (http://getxoship.blogspot.com/2009/04/estimating-ships-tonnage-this-post.html#more) you can see these coef. for various ship types.
Regards and apologize for my delayed answer

J.J. Azpiroz