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Mooring Bridles

Jimmy Green LIROS Anchorplait® Bridles prove their worth when you want to split the loading between two fixing points, e.g. Port and Starboard Mooring Cleats, rather than a direct forward pull over the bow roller or a single cleat attachment at the stern. 

Jimmy Green Anchorplait Mooring Bridles can be deployed for:

  1. Permanent Mooring Lines
  2. Towing and Drogue Warp Alignment
  3. Snubbing Lines on the Anchor Chain

The Jimmy Green Rigging Team can offer support and assistance via telephone or email for a bespoke solution.

Permanent Mooring Bridles

The selection process for determining the size of your mooring bridle:

  1. Find the column in the table below that best represents your Boat Length Overall.
  2. Compare your displacement with the tonnage listed.
  3. If the displacement is greater than displayed in your column in the table, or your yacht is a multihull, consider moving across to the next column to increase the diameter.
  4. Take advice on local conditions and check the benchmark size from the table below against other similar-sized boats moored in your area.
  5. Look at the mooring configurations on neighbouring yachts with a critical eye and judge whether your setup should be the same.
  6. Consider whether you can make any improvements in terms of mooring convenience and anti-chafe measures.
  7. Factor in the purpose of the bridle

This is the same chart as in our single-point mooring strop guide because although the load is mainly shared between the two tails on a bridle, there is no guarantee that one tail won't have to take the entire loading at any time.

Due to the wider bridle angle resulting from a broader beam, each tail on a multihull setup will take the entire load for a substantial proportion of the time at anchor or on a mooring.

Separate hardware-connected lines may therefore be required for catamarans and trimarans.

Single lines can be three strand (twisted lay) construction: 3 Strand Strops rather than Anchorplait if preferred.

Benchmark Guide for Single (or Double) Point Mooring Strops
Yacht Length Overall < 5 metres 5 - 6 metres 6 - 8 metres 8 -10 metres 10 - 12 metres 12- 14 metres 14 - 16 metres
Approximate length in feet < 16 feet 16 - 20 feet 20 - 26 feet 26 - 33 feet 33 - 40 feet 40 - 46 feet 46 - 53 feet
Displacement in tonnes 0.6 tonnes 1 tonne 2.5 tonnes 5 tonnes 9 tonnes 13 tonnes 16tonnes
Strop Diameter 14mm 16mm 18mm 20mm 24mm 28mm 32mm

Anchor Chain Snubbing Bridles

Bridles for Para Anchor, Yacht Drogue and Towing Warps follow the same principles as those for a Chain Snubbing Bridle, see below:

The load-bearing capacity of a snubbing bridle should typically be compatible with the anchor rode.

If the bridle is undersized, it will absorb the shock loads well but may ultimately be sacrificial.

If it is oversized, the shocks and surges may not put enough strain on the rope to make it stretch sufficiently and absorb the snatch.

This is the same chart as in our Anchor Rode Size Guide:

Benchmark Guide for determining the size of your Main Anchor Warp
Yacht Length Overall < 6 metres 6 - 8 metres 8 - 10 metres 10 - 12 metres 12 - 14 metres 14- 16 metres 16 - 18 metres 18 - 20 metres
Approximate length in feet < 20 feet 20 - 26 feet 26 - 33 feet 33 - 40 feet 40 - 46 feet 46 - 53 feet 53 - 60 feet 60 - 66 feet
Displacement in tonnes 1 tonne 2.5 tonnes 5 tonnes 9 tonnes 13 tonnes 16 tonnes 20 tonnes 25 tonnes
Chain Size 6mm 7/8mm 8mm 8/10mm 10mm 10mm 10/12mm 12 metres
Warp Diameter 10mm 12mm 14mm 14/16mm 16mm 18mm 20mm 24mm

Jimmy Green Multihull V Bridle Advisory

The wider angle involved with setting up a V bridle on broad beam multihulls may make it prudent to deploy separate hardware-connected lines.

Mantus Marine manufacture a BRIDLE PLATE solution.

Single lines can be three strand (twisted lay) construction: 3 STRAND STROPS rather than ANCHORPLAIT if preferred.

Size guidelines vary for application:

GENERAL GUIDE FOR DETERMINING THE SIZE OF YOUR ANCHOR RODE   PERMANENT MOORING BRIDLE SIZE GUIDE

LIROS Anchorplait® White Nylon Article 01058JG - 100% Nylon (Polyamide) - Facts, Features and Plus Factors

Anchorplait® is a Jimmy Green Marine UK Registered Trademark.

Anchorplait® is manufactured exclusively by LIROS Ropes for Jimmy Green Marine.

Anchorplait® features Easy Splice Markers designed by the Jimmy Green Rigging Team.

The eight-strand construction (two pairs left hand, two pairs right hand) delivers a balanced performance with no twist under tension.

In fact, Anchorplait falls and flakes like a chain.

Anchorplait is the rope that will not cockle - the interlocking opposing pairs resist rotation.

LIROS Anchorplait is the optimum rope solution for producing V Bridles for two excellent reasons - the consistently reliable quality of the LIROS rope and the suitability of the construction for forming a dependable, trustworthy centre eye splice.

LIROS Anchorplait:

  • LIROS manufacturing excellence and consistency
  • 100% Nylon (Polyamide)
  • UV stabilised
  • Square braid construction
  • Non-kinking
  • Balanced braiding
  • The eight-strand construction (two pairs left hand, two pairs right hand) ensures a balanced performance and no twist under tension
  • Zero possibility of cockling - the interlocking opposing pairs resist rotation
  • Falls and flakes like a chain
  • Dependable, robust strength
  • Reliable durability
  • Excellent weathering and wear resistance
  • Remains flexible for the duration of its working life
  • Supreme Shock Absorbing Elongation, >20% working load stretch
  • Spliceable into a robust, secure V-shape termination – centre eye splice

LIROS Anchorplait and Octoplait Nylon Break Load in daN:

10mm 2400daN - 12mm 3300daN - 14mm 4400daN - 16mm 5600daN - 18mm 7000daN - 20mm 8140 daN - 24mm 11800daN

LIROS specify their minimum break loads in Dekanewtons (DaN)

Kg force is a more recognisable illustration of strength, so you can convert the LIROS DaN values as follows:

1 Dekanewton = approximately 1.02 kg force

Therefore, the strength for any given diameter will be higher in kg than in daN, e.g. 11800daN = approximately 12036kg

Plain white LIROS Octoplait Nylon article 01058 with only LIROS tracer yarns is also available.

CUSTOM BUILD INSTRUCTIONS - V BRIDLE

Jimmy Green V-Shaped Anchorplait Bridle Splicing

A Jimmy Green V-shaped bridle is based on the Anchorplait centre eye splice (with or without a thimble/chain hook).

  • The bridle consists of a continuous line, made into a soft loop around a fitting or formed around a hard thimble eye with a Brummel locking tuck splice.
  • The strength of the bridle is therefore not reliant on a Y Joining Splice, i.e. splicing two separate ropes together.
  • The maximum deployment angle must always be set up with caution, but the centre eye splice is much less prone to failure at a wider than optimum angle than any joining splice between two separate ropes.
  • It is impossible to successfully put a centre eye splice in a rope of three strand construction.

Jimmy Green Advisory on V Shape and Y Shape Anchorplait Bridles for Multihulls:

The same principles apply to a multihull, but the length of the tails and the angle they create must be carefully considered due to the extra beam.

The maximum angle of deployment must always be set up with caution.

The extra tail length required to keep the angle within prudent parameters may result in too large a swinging arc and a general lack of control.

For wide-span catamarans and trimarans, it will be advisable to use two separate strops shackled together to make the V shape.

A further short strop can also be deployed at the apex of the V to make a Y shape.

Mantus manufacture a BRIDLE PLATE for connecting a mooring system.

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LIROS 20mm Octoplait Nylon V shape Mooring Bridle
LIROS 20mm Anchorplait Nylon Y Bridle Single Part
Liros 20mm Octoplait Nylon V Part of Y Shape Bridle