The Fishing Vessels (Safety Provisions) Rules 1975

Rule 90(1)(k)

PART II SEA ANCHORS FOR LIFEBOATS AND BOATS OTHER THAN CLASS BOATS

1.  Every sea anchor shall comply with the following requirements:—

(a) it shall be constructed of No. 1 best flax canvas, or other suitable material;

(b) the canvas part shall be strongly sewn together and be roped at the seams with 45 millimetres in circumference bolt rope; the ropes then being formed into a bridle with a thimble seized in the connecting end, and the ropes extended and seized into a parcelled loop to form the attachment for the tripping line;

(c) a hawser shall be attached to the sea anchor by means of a shackle of suitable size to take the thimble;

(d) the length of the hawser shall be three times the length of the lifeboat or boat;

(e) a tripping line 3·5 metres longer than the hawser shall be provided.

2.  A circular sea anchor shall be fitted at the mouth with a galvanised iron hoop. Any other type of sea anchor shall be fitted with galvanised iron spreaders across the mouth and with an ash spreader at the upper edge.

3.  The size of sea anchors shall be as follows:—

(a) for lifeboats over 9 metres in length—

Non-circular folding sea anchors—Mouth	760 millimetres upper edge 685 millimetres lower edge 685 millimetres each side
Area of mouth	4968 square centimetres

Length of canvas bag—1·35 metres.

Hawser—75 millimetres in circumference.

Tripping line—50 millimetres in circumference.

(b) for lifeboats over 6 metres in length but not over 9 metres in length—

Circular sea anchors—Mouth 685 millimetres diameter.

Non-circular folding sea anchors—Mouth 610 millimetres each side.

Length of canvas bag—1·25 metres.

Hawser—75 millimetres in circumference.

Tripping line—50 millimetres in circumference.

(c) for lifeboats not over 6 metres in length and other boats (other than Class C boats)—

Circular sea anchors—Mouth 610 millimetres diameter.

Non-Circular folding sea anchors—Mouth 545 millimetres each side.

Length of canvas bag—1·10 metres.

Hawser—65 millimetres in circumference.

Tripping line—35 millimetres in circumference.