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2022 Journal Impact Factor - 0.6
2022 CiteScore - 1.7




ISSN 2083-6473
ISSN 2083-6481 (electronic version)




Associate Editor
Prof. Tomasz Neumann

Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
Simulation Training for Replenishment at Sea (RAS) Operations: Addressing the Unique Problems of "Close-Alongside" and "In-line" Support for Multi-Streamer Seismic Survey Vessels Underway
1 Cork Institute of Technology, Cork, Ireland
ABSTRACT: Modern siesmic survey vessels in "production", may tow twelve or more streamers, each of which can be six to eight kilometres long. Together with associated paravanes, tail-buoys and acoustic "guns", the streamer spread width of such wide-tow configurations can extend to 1200 metres. The physical deployment and recovery of such an extensive array is time-consuming and expensive. The entire survey operation requires the constant attendence of a suitable offshore support vessel (OSV) to act in the role of "chase vessel", but more critically, to provide close replenishment support underway and, when required, rapid emergency towing assistance. While naval crews rightly claim a near monopoly on the skills-set necessary for underway replenishment, the naval RAS exercise almost never involves the supply and receiving vessels engaging "close-alongside". The seismic/OSV replenishment operation, on the other hand, frequently necessitates such a demanding and stressful manoeuvre. This paper presents a training solution involving the use of a 360°full-mission bridge simulator.
International Association of Geophysical Contractors (IAGC), 2002, Marine Seismic Operations: An Overview.
Naval Warfare Publication, 2004, Underway Replenishment NWP 4-01.4, US Navy Department. Available at:
Maritime and Coastguard Agency (MCA), 2002, Marine Guidance Notice MGN 199 (M) Dangers of Interaction, Southampton, MCA.
Paffett, J. 1990, Ships and Water. London, The Nautical Institute.
McTaggart, K. Cumming, D. Hsiung, C. & Li, L. 2001, Hydrodynamic Interactions Between Ships During Underway Replenishment, 6th Canadian Marine Hydrodynamics and Structures Conference, Vancouver, 23-26 May.
Skejic, R. Breivik, M. Fossen, T. & Faltinsen, O. 2009, Modeling and Control of Underway Replenishment Operations in Calm Water, 8th IFAC International Conference on Manoeuvring and Control of Marine Craft, Guarujá (SP), Brazil, 16-18 September.
Citation note:
Doyle E.: Simulation Training for Replenishment at Sea (RAS) Operations: Addressing the Unique Problems of "Close-Alongside" and "In-line" Support for Multi-Streamer Seismic Survey Vessels Underway. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 6, No. 2, pp. 263-268, 2012

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