Transport Publication TP 13313 E
- Table of Contents
- Introduction
- Definitions
- Application
- Construction and Structural Strength
- Stability
- Freeboard and Freeboard Marking
- Watertight &Watertight Integrity
- Water Freeing Arrangements
- Bilge Systems
- Fluid Systems
- Machinery
- Electrical Systems
- Steering Gear
- Fire Safety
- Life Saving and Emergency Equipment
- Communication Equipment
- Navigation Equipment
- Anchors and Cables
- Miscellaneous Marine Equipment
- Accommodation
- Protection of Personnel
- Appendix A: Sample Stability Information Booklet
- Section 1: Operational Information
- Section 2: Technical Data and Loading Conditions
- Section 3: Reference Information
16.1 Every ship should be provided with at least two high holding power ( HHP ) anchors and cables in accordance with the following table of minimum sizes. The anchor sizes given in the table are for HHP types i.e. spade, plough, etc.
16.2 The requirements shown in the table below are for ships of normal sailing yacht form. Where such ships have an unusually high windage, such as heavy rigging, viz. square-rigger, or large superstructures, the weight of each anchor should be increased by 25%. The diametre of the anchor cable should be appropriate to the weight of the increased size of anchor.
16.3 If a fisherman type of anchor is to be provided, the weight from the table should be increased by 75% but the diametre of the anchor cable need not be increased.
16.4 The length of each anchor cable should be appropriate to the operating area but in any event should not be less than 55 m for both the main and kedge anchors. The anchor cable for the main anchor should be of chain or equivalent and for the kedge anchor may be of rope. Where the anchor cable is of rope, there should be at least 5 m of chain between the rope and the anchor. At least one anchor should be provided with a permanently secured rode, the outboard end of which should terminate in chain, and the bitter end should be permanently secured to the ship.
16.5 The ship should be provided with a towline of not less than the length and diametre of the kedge anchor cable. The towline may be used as a warp for the kedge anchor.
16.6 Where an anchor weighs more than 50 kg , an adequate windlass should be provided for working the anchor.
16.7 There should be a strong securing point on the foredeck and a fairlead or roller at the bow which can be closed over the cable.
16.8 Provision should be made to securely fasten each anchor when stowed or catted.
16.9 Every ship should have a means of emergency anchoring with no power available.
Table 2: Anchors and Cables
| Length Overall | Anchor Weight | Anchor Cable Diameter | ||||
|---|---|---|---|---|---|---|
| Main | Kedge | Main | Kedge | |||
| Chain | Rope | Chain | Rope | |||
| (metres) | ( kg ) | ( kg ) | ( mm ) | ( mm ) | ( mm ) | ( mm ) |
| Up to 9 | 15 | 8 | 8 | 12 | 6 | 10 |
| 10 | 17 | 9 | 8 | 14 | 8 | 12 |
| 11 | 20 | 10 | 8 | 14 | 8 | 12 |
| 12 | 23 | 12 | 8 | 14 | 8 | 12 |
| 13 | 26 | 13 | 9.5 | 16 | 8 | 12 |
| 14 | 30 | 15 | 9.5 | 16 | 8 | 14 |
| 15 | 34 | 17 | 9.5 | -- | 8 | 14 |
| 16 | 38 | 19 | 11 | -- | 8 | 14 |
| 17 | 44 | 22 | 11 | -- | 8 | 14 |
| 18 | 50 | 25 | 11 | -- | 9.5 | 16 |
| 19 | 56 | 28 | 12.5 | -- | 9.5 | 16 |
| 20 | 62 | 31 | 12.5 | -- | 9.5 | 16 |
| 21 | 69 | 35 | 12.5 | -- | 11 | 16 |
| 22 | 76 | 38 | 12.5 | -- | 11 | 16 |
| 23 | 83 | 42 | 14 | -- | 11 | 16 |
| 24 | 90 | 45 | 14 | -- | 11 | 16 |
Notes:
- Chain cable diametre given is for short link. Where stud link cable is to be used, the diametre may be modified in accordance with the breaking load.
- The rope diametre given is for nylon. Where other fibres are to be used, the diametre should be modified in accordance with the breaking load.
- Where a heavier kedge anchor is provided, the weight of the main anchor may be reduced provided the combined weight of both anchors is not less than 160% of the main anchor weight.