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Fibre Rigging

Fibre rigging is increasingly popular for multihull standing rigging and other specific yacht rigging applications.

Fibre solutions for monohull shrouds are less common due to the high loads produced by the acute geometrical relation to the mast. Consider the specification very carefully before switching from Stainless Steel Wire to Fibre for Standing Rigging. Consultation with the rope manufacturer or an onsite qualified rigger/surveyor is recommended. 

The main benefits of composite, synthetic fibre rigging relate to a significant reduction in weight, a considerable increase in strength and the benefits of positive visual inspection.

The diameter of Dyneema fibre rigging should be specified by two critical criteria:

  • The fibre should stretch less than the wire it is replacing
  • To eliminate creep, the working load on the fibre should be less than 20% of the rated break load 

Consequently, when fibre rigging is specified to ensure zero creep at the expected load, it will be far stronger than the wire it replaces. Correctly stipulated fibre rigging should result in at least a doubled break load, which could be even as great as x5. The extra strength is reassuring because it allows for a certain amount of chafe and UV damage during use without compromising the rig.

The advantage of fibre rigging solutions and their fittings is not only a reduction in weight but also the opportunity for a full visual inspection. Any sign of wear or deterioration will be gradual and visible, which allows for an appropriate maintenance schedule to avoid any risk of failure. The first signs are best described as a fuzziness on the exposed surface of the fibres. The crucial factor is that deterioration occurs on the outside, which starkly contrasts stainless steel wire, where failures can occur from within without any advance warning.

Specifying fibre rigging is a process that should relate directly to the comparative stretch characteristics of the wire it is replacing.

Fibre rigging should not be specified by breaking strain alone, as this will inevitably result in a stretchy rig.

DynIce Dux Weight and Break Load Information Chart including a comparison guide with standard 1x19 stainless steel wire by equivalent creep/stretch
DynIce Dux Diameter  DynIce Dux Weight per 100 metres in kg DynIce Dux Linear Strength in tons DynIce Dux Spliced Strength in tons 1x19 Stainless Wire equivalent diameter for Creep/Stretch **
5mm 2.27 4.8 4.3
6mm 3.28 6.8 6.1 5mm
7mm 3.75 7.5 6.7 6mm
8mm 4.92 9.9 8.9
9mm 5.4 10.9 9.8
10mm 6.8 13.5 12.2 7mm
11mm 8.3 16.6 14.9 8mm
12mm 9.7 18.8 16.9
13mm 11.2 22.4 20.2 10mm
14mm 13.6 27.3 24.6
15mm 14.4 28.8 25.9 12mm
16mm 18.6 37.2 33.5 14mm
18mm 22.6 45.1 40.6 15mm
20mm 27.4 54.7 49.2 16mm
21mm 32.1 64.2 57.8 19mm

** 1x19 stainless wire equivalent diameter for creep/stretch information is courtesy of Colligo Marine.

Jimmy Green Marine offers fibre rigging options from Dynice Dux, LIROS and Marlow Ropes, which can be sub divided into two categories:

1. Backstays, Runners and Checkstays

  • Marlow D12 Max - the super pre-stretched and heat-set version of standard D12 Dyneema 78.
  • LIROS D Pro XTR article 01514 - 100% pure Dyneema® SK99 rope with the latest in coating technology - Manufactured in a 12plait hollowbraid construction which makes it extremely good to handle and easy to splice - LIROS-Heat-Stretch-System - unique LIROS pre-stretching process, calibrated under exacting temperature and tension conditions, designed to minimise stretch and enhance performance - LIROS Coating System - the LCS polyurethane impregnation process improves resistance to abrasion and UV damage by up to 50%.

2. Standing Rigging

  • LIROS D Pro Static article 01504 - 12 strand Hollowbraid from specially engineered Dyneema DM20 fibre delivering near zero creep, LIROS Heat Stretch System, LIROS Coating System
  • Marlow M Rig Max - 12 strand plaited construction from super pre-stretched Dyneema DM20, near zero creep, Armourcoated
  • Hampidjan DynIce Dux - super pre-stretched Dyneema SK75 12-strand construction - although the initial stretch of SK75 is not comparable with other fibres, it is more responsive to heat stretching, which results in near zero creep and constructional bedding in Hampidjan's super-enhanced DUX version.
Jimmy Green Break Load Comparison Guide for 12 strand Dyneema Fibre Rigging for: Hampidjan DynIce Dux, LIROS D Pro Static, LIROS D Pro XTR, Marlow M Rig MAX and Marlow D12 MAX78
Line Hampidjan LIROS Marlow
Diameter DynIce Dux D Pro Static D Pro XTR M-Rig MAX D12 MAX 78
2.5mm x x 580kg 839kg 935kg
3mm x 900kg 1150kg 1260kg 1400kg
4mm x 1230kg 1500kg 2070kg 2300kg
5mm 4800kg 2450kg 3200kg 2670kg 2980kg
6mm 6800kg 4050kg 5600kg 3820kg 4250kg
7mm 7500kg x x 6270kg 6980kg
8mm 9900kg 5000kg 7000kg 7840kg 8730kg
9mm 10900kg x x 9020kg x
10mm 13500kg 8500kg 11000kg 10500kg 11700kg
11mm 16600kg x x 12600kg x
12mm 18800kg 11300kg 15000kg 15000kg 16700kg
13mm 22400kg x x 17700kg 19700kg
14mm 27300kg x 17000kg x x
15mm 28800kg x x 22100kg 24600kg
16mm 37200kg x 22400kg x x
17mm x x x 27400kg 30600kg
18mm 45100kg x 28000kg x x
20mm 54700kg x x x x
Read More
Dynice Dux - 7mm
Dynice Dux - 7mm
Dynice Dux - 7mm
Dynice Dux - 8mm
Dynice Dux - 9mm
Dynice Dux - 10mm
Dynice Dux - 11mm
Dynice Dux - 12mm
Dynice Dux - 13mm
Dynice Dux - 14mm
Liros D-Pro Static - 4mm
Liros D-Pro Static - 4mm