Nov 102 min read

Trimming Calculation (using ship's trimming tables)

Updated: Nov 24

Trimming Calculation Tool interface on laptop, showing fields for draft readings, cargo input, and final draft calculations.

Understanding the Trimming Calculation Tool (Using Ship's Trimming Tables) 🚢

The Trimming Calculation Tool is designed to help mariners calculate a ship’s trim using the 100 MT trimming tables 🌊. This online tool simplifies trimming calculations, allowing you to determine the Final Forward and Aft Drafts based on cargo loaded or discharged in specific holds ⚖️.

How to Use the Trimming Calculation Tool

Follow these step-by-step instructions to use the tool effectively:

Step 1: Input Draft Readings 📝

Begin by entering the required data into fields marked with a red border:

Enter 4 Draft Readings: Input the four draft readings. The program will automatically calculate the Midship Draft based on these values 📊.

Step 2: Input Trimming Table Data for Cargo Holds 📖

Using the calculated Midship Draft as a reference, input data from the 100 MT trimming tables:

Forward and Aft Changes per 100 MT: For each cargo hold, enter the forward and aft draft changes (in meters) based on loading 100 MT in the selected hold. This data ensures accurate trimming calculations ✅.

Step 3: Enter Cargo Amounts for Each Hold ⚓

Input the Cargo to Load or Discharge for each hold. The program will calculate the effect on Forward and Aft Drafts based on:

The entered cargo amounts.
The trimming table data.

Step 4: Review Final Drafts 📈

After entering the cargo amounts, the tool will display the Final Forward and Aft Drafts after loading/discharging cargo.

Final Steps: Save and Print 🖨️

Complete the following details as needed:

Port Name
Date 📅
Remarks (optional)

At the top of the page, use the Record Book icon to save personal notes or records related to the trimming calculation 📖.

Important:

Always click Calculate and Save buttons to ensure all data is updated and saved accurately 💾.

Printing the Trimming Calculation Report

At the bottom of the page, click the Print button to generate a Trimming Calculation Report.
In the top-right corner of the report, click the Print Icon to print it directly or save it as a PDF 📄.

Need Help? 💬

If you have any questions or need clarification on using the tool, leave a comment below! Our Admin team is here to assist you 😊.