Section 6 Propulsion systems
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Inland Waterways Ships, July 2022 - Part 4 Ship Structures (Ship Types) - Chapter 8 Tugs, Pusher Tugs and Launches - Section 6 Propulsion systems

Section 6 Propulsion systems

Parent topic: Chapter 8 Tugs, Pusher Tugs and Launches

6.1 General

6.1.1 When a propulsion system is fitted like ‘Voith Schneider’, rudder propellers, etc. note should be taken of the manufacturer’s recommendations regarding the position of towing bitt or towing winch, the stability of the ship and the position of skegs.

6.1.2 Propulsion systems protruding under the bottom of the ship are to be protected against damage by an effective structure around the propulsion system. The protective structure is to be strong enough to withstand the loads imposed on it by dry-docking.

6.2 Bottom structure

6.2.1 The bottom structure is to be reinforced around large openings arranged for the fitting of the propulsion system. In general, deep floors in association with longitudinal girders are to be fitted, the scantlings of which may be obtained by direct calculation, using maximum permissible stresses given in Pt 4, Ch 8, 7 Direct calculation procedures.

6.2.2 The protective structure mentioned in Pt 4, Ch 8, 6.1 General 6.1.2 is to be adequately supported.

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