Ship Loading Stability Ship Monitor

Description: This software automatically computes trim, forward draft, after draft, metacentric height and stability margin.  It also computes total weight, all centroids of total weight and the combined free surface effects of all tanks for a given vessel operating condition.   This calculative method depends upon Curves of Form input.  If the trim from these calculations exceed 1% of the LBP, the vessel designer is advised to make additional calculations to get more accurate results.  

Inputs: 

The vessel's Light Ship weight and centroids, vessel length, vessel condition being evaluated (i. e. ballast departure, full loaded departure, 50% load arrival, 10% consumables arrival condition, etc.)

The following is required for each item on board:

Weights and centroid information for passengers, crew, dry consumables (provisions and stores) on board.

Weights and centroid information for cargo (dry and liquid) on board.  Free surface information is required for the tanks carrying liquid cargo. 

Weights and centroid information for consumable liquids carried (fuel, water, etc.).   Free surface information is required for the tanks carrying consumable liquids.

After the above information is entered use the total weight obtained as a basis for the following data input:

Input the following Curves of Form data:  Draft, LCB, LCF, KMt and KML

Input the Maximum Allowable KG, or VCG, this is an optional input, but required if you want to compute the stability Margin

Outputs: 

The total weight and centroids of the vessel in the condition being evaluated.  This includes all fluid weights present.

The total free surface effect for all the tanks involved.

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The trim present, the trim angle, the forward draft, the after draft, corrections for free surface in KG, the metacentric height and the stability margin.