Section 2 Towing winch emergency release systems - scope and definitions
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Ships, July 2022 - Part 7 Other Ship Types and Systems - Chapter 16 Towing Winch Emergency Release Systems - Section 2 Towing winch emergency release systems - scope and definitions

Section 2 Towing winch emergency release systems - scope and definitions

Parent topic: Chapter 16 Towing Winch Emergency Release Systems

2.1 Scope

2.1.1 The requirements of this Chapter apply to winch emergency release systems provided on towing winches that are used for towing ships within close quarters, ports or terminals.

2.1.2 The requirements of this Chapter are not applicable to towing winches on board ships used solely for long distance ocean towage, anchor handling or similar offshore activities.

2.1.3 See Pt 4, Ch 3, 7 Towing arrangements for requirements for towing winches and associated equipment.

2.2 Definitions

2.2.1 Emergency release system refers to the mechanism and associated control arrangements that are used to release the load on the towline in a controlled manner under both normal and blackout conditions.

2.2.2 Maximum design load is the maximum load that can be held by the winch as defined by the manufacturer (the manufacturer’s rating).

2.2.3 Fleet angle is the angle between the applied load (towline force) and the towline as it is wound onto the winch drum, see Figure 16.2.1 Towline ’fleet angle’.



Figure 16.2.1 Towline ’fleet angle’
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