# Ship-Calculations Ver 0.98

- Author:
- Kalyan Chatterjea

These tutorials could be used in a beginner's course on Ship Stability, developed at <a href="http://wavelinklms.edu.sg">Wavelink Maritime Institute, Singapore</a> . The material is based on the well-known text book - Reeds Vol 13: Ship Stability, Powering and Resistance (Reed's Marine Engineering and Technology), 2014 [Christopher Patterson, Jonathan Ridley]. It is hoped that these calculation-examples using GeoGebra will reduce the calculation load for the students and help them explore various what-if situations easily. If you have any comments on these calculations, please email to Kalyan.Chatterjea@gmail.comhere

**Vessel's Specifications:**LBP - 100 m Lightship Information: Δ - 2615 tonnes KG - 7 m TCG - 0 m LCG - 44 m FOAP (Ford of After Perpendicular) Tropical Δ - 7530.9 tonnes Summer Δ - 7329.0 tonnes Winter Δ - 7129.4 tonnes Tropical FWA - 135 mm Summer FWA - 133 mm Winter FWA - 131 mm Tropical draught - 7.146 m Summer draught - 7.000 m Winter draught - 6.854 m## Table of Contents

### Numerical Methods

- Area Calculation by Simpson's 1st Rule
- X-Y plotting, curve-fitting and area under the curve example
- Area Calculation using a 4th Degree Function
- Waterplane area & its centroid calculation - Simpson's Rule
- Volume & Centroid of Volume Calculation - Simpson's Rule
- Volume & Centroid of Volume Calculation II - Simpson's Rule
- Volume & Centroid Calculations with Appendage
- Second Moment of Area for a Ship's Waterplane

### CG Change - Mass Addition Removal & Shift

### Hydrostatic Data from MV Reed

### Initial Stability

### Large Angle Stability