Trim & Stability Sheet (Metric Units)
Description:
This spreadsheet automatically computes
trim, forward draft, after draft, metacentric height and stability margin.
It also computes
Electronic
Document Type: Microsoft Excel
spreadsheet Cost:
$25.00 US funds
Number of
Pages: single
sheet
Inputs:
 | The vessel's
Light Ship weight and centroids, vessel length, vessel
condition being evaluated (i. e. departure, arrival, 45% burnout,
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.). |
|
| 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. |
| 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. |
Suggested
Reading:
| naval
architecture or yacht design texts |
|
Hawaii Marine Company Article "Understanding
Trim" |
|
Hawaii Marine Company Article "Understanding
Stability" |
| miscellaneous
science and engineering texts |
| Basic Ship
Theory, by Rawson and Tupper |
| Skene's
Elements of Yacht Design, Kinney |
|
Principles of
Naval Architecture, by SNAME |
Terms:
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User License Terms.
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Minimum
System Requirements: Windows 95/98/NT/2000/XP/Vista/Windows7
Sample:
A sample document is shown below.
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