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Research Bulletin by RS

Tow force as an optimal characteristic to determine the number of tugs required in port
Authors:S.A. Kiselev, A.A. Petrov

Results are given of a study on developing normative documents to determine the tug number required and that available for tow and mooring operations in port. It is stated that the use of lower consumption engines and automation level growth resulted in an appreciable decrease of propulsion unit losses involving the tow force growth in modern tugs as compared to those of the turn of the last century. It is suggested that the tug tow force be used as an optimal characteristic to determine the required tug number.

Key words: towing fleet, tug thrust augmentation, propulsion/ steering gear, tow and mooring operations.


1. SOJuZMORNIIPROEKT. Rukovodstvo po tehnologicheskomu proektirovaniju morskih portov. RD Moskva, 1993.
2. DAMEN SHIPYARDS GROUP. Oficial'nyj sajt [Jelektronnyj resurs]. URL:
3. International Maritime Organization. IMO MSC/Circ.1101; MEPC/Circ.409; FAL/Circ.100. 8 September 2003.
4. Hensen H. Tug Use in Port A Practical Guide, Second Edition. The Nautical Institute. London, 2003.
5. Ministerstvo Transporta Rossijskoj Federacii. Objazatel'nye postanovlenija v morskom portu Murmansk. Moskva, 2014.
6. Malaja Sudohodnaja Kompanija, ZAO. Oficial'nyj sajt [Jelektronnyj resurs]. URL:
7. GU Navigacii i okeanografii Ministerstva Oborony Rossijskoj Federacii. Locija Barenceva morja. Chast' II. SPb, 2006.

About authors

Kiselev Sergey - PhD, CC "MASKO", Murmansk

Petrov Aleksey - CC "CNIIMF", St. Petersburg

Issue: 38/39 (2015)

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UDC:  629.5.08
Pages:  52-55

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