7.3 Petrol Engines
Clasification Society 2024 - Version 9.40
Statutory Documents - MCA Publications - MGN 280 - Small Vessels in Commercial Use for Sport or Pleasure, Workboats and Pilot Boats - Alternative Construction Standards - 7 Machinery - 7.3 Petrol Engines

7.3 Petrol Engines

  7.3.1 A petrol engine may be accepted provided that the engine is a suitable outboard type.

  • 7.3.1.1 A vessel of any type may be fitted with a small engine (usually less than 5 horse power) manufactured with an integral fuel tank, provided a safety warning sign is displayed with details of appropriate precautions to be taken when filling the fuel tank.

  • 7.3.1.2 Vessels other than inflatable boats should supply fuel to the engine from either;

    • .1 a permanently installed fuel tank constructed to an appropriate standard (see Standards Annex 13) and in the case of vessels fitted with a watertight weather deck shall have arrangements such that spillage during fuel handling will drain directly overboard; or

    • .2 a portable tank of 27 litres or less in capacity complying to an appropriate standard (see Standards Annex 13).

  • 7.3.1.3 Inflatable boats should supply fuel to the engine from a portable tank of 27 litres or less in capacity complying to an appropriate standard (see Standards Annex 13).

  7.3.2 In locations where an accumulation of hydrocarbon vapours is likely to occur, a suitable hydrocarbon gas detector should be fitted under or adjacent to the tank (located in a safe place). The detector components, and any other electrical equipment residing in the vapour area should not be capable of causing ignition.

  7.3.3 A vessel should be provided with sufficient fuel tankage for its area of operation, spare portable petrol containers must not be carried onboard unless it is judged to be essential to assure the safe completion of a voyage or excursion (see Section 7.7).

  7.3.4 Attention is drawn to the electrical arrangement requirements (Section 8.6).


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