Disabled Tankers - Report of Studies on Ship Drift & Towage

Based on testing carried out by the British National Maritime Institute (NMI), and initiated by OCIMF members, the American Institute of Shipping (AIMS) and the International Salvage Union (ISU), this publication is a report on the most probably drift behaviour of disabled tankers. It is divided into three sections:

• Part 1 is an overview of model tests carried out by the NMI
• Part 2 is an exploration of full scale drift data taken from operational ships
• Part 3 describes tank test studies.

Part 1

1. Introduction

2. Experiments with Free Models

3. Measurements of Drift Forces in Waves

4. Calculations of Wave Drift Forces

5. Conclusion

6. References

Part 2

1. Purpose
2. Data Gathering
3. Questionnaire Results
4. Summary of Results
5. Tables of Results
6. Questionnaire

Part 3

1. Introduction
2. Preliminary Results
3. Experimental Arrangements
4. Results Obtained
5. Discussion of Results
6. General Discussion
7. Conclusion
8. References
9. Nomenclature

The Oil Companies International Marine Forum (OCIMF) is a voluntary association of oil companies with an interest in the shipment and terminalling of crude oil, oil products, petrochemicals and gas. OCIMF focuses exclusively on preventing harm to people and the environment by promoting best practice in the design, construction and operation of tankers, barges and offshore vessels and their interfaces with terminals. Learn more at www.ocimf.org