LIROS Dynamic Plus Halyards

LIROS Dynamic Plus Article 02004 Dyneema SK78 - LIROS Cruising Dyneema is the go-to line for upgrading from 100% Polyester - the preferred choice for extended performance cruising or committed racing when budget restraints don't allow for LIROS Racer Article 02001 or LIROS Regatta Article 2000.

LIROS Dynamic Plus is designed and manufactured for Regatta Performance: hard-wearing, low stretch for competitive cruising sailors - working load stretch <2%

The Jimmy Green Rigging Team are happy to splice your existing shackles onto new halyards.

LIROS Dynamic Plus Article 02004 Dyneema SK78 Specification and Rope Construction

Cover: Close Weave 32plait 100% Polyester (8mm 24plait) stabilised structure
Core: Plaited Dyneema® SK78 with additional inner plait construction with enhanced LIROS-Heat-Stretch-System

LIROS Dynamic Plus has a slightly thinner Dyneema core than LIROS Racer Dyneema, with an extra inner cover plait to compensate. The result is a solid round construction with excellent firm shape retention under load, e.g. around sheaves and winches.

LIROS Dynamic Plus Diameters and Colours:

8mm, 10mm, 12mm - White with colour coding in Blue, Green, Red and Yellow plus full colour Red, Plain White (with LIROS marker yarn) and Steel Blue

14mm - White with colour coding in Blue, Red and Yellow plus full colour Steel Blue

LIROS Declaration: LIROS exclusive Steel Blue spin dyed Polyester is 30% more abrasion resistant than other colours in the equivalent polyester yarn.

LIROS Dynamic Plus Facts, Features and Factors:

• Excellent smooth handling
• Non-kinking, balanced braiding
• Excellent holding power in cleats and clutches
• Good Grip around winches
• Solid shape retention around winches - firm, compact braid construction doesn't flatten
• Runs freely through block and sheaves
• Spliceable - advanced core-dependent splice
• Low stretch - LIROS-Heat-Stretch-System

LIROS-Heat-Stretch-System - LHSS - unique LIROS pre-stretching process, calibrated under exacting temperature and tension conditions, designed to minimise stretch and enhance performance.

LIROS Coating System - LCS - polyurethane impregnation process improves abrasion resistance and protects against UV damage by up to 50%.

Jimmy Green Rigging Team Splicing Advisory

The inner cover plait is not load-bearing. A certain amount is removed as part of the core-dependent splice resulting in a reduced diameter over a short length. Although it looks thin, the strength of the splice and the rope is not compromised. The Polyester cover can be permanently removed to produce a cover-stripped Dyneema core-only loop splice. Snap shackles can then be retrofitted/changed over, attached using a simple cow hitch - pass the loop through the eye of the shackle, over the top and back down to the rope end.

LIROS recommend using individual sail area as a benchmark for determining the optimum line diameter for your running rigging application.

The Jimmy Green Rigging Team suggest that there are additional criteria that you may wish to factor in:

• Consider increasing the diameter to make handling more comfortable
• Check the capacity of all associated fittings, e.g. sheaves, blocks and winches
• Assess how hard you intend to work the rigging
• Prepare for the rigours of extended cruising

Each line should be capable of comfortably taking the anticipated strain. Still, it should run smoothly and freely through your rigging system to avoid disproportionate effort, needless delay and excessive wear and tear.

The recommendation is subject to how hard you intend to work the rigging. There are two charts published by LIROS, one for cruising and one for racing. The recommendation only varies a little once you reach the larger sail area, where the loading can rise exponentially.

LBL = LIROS Break Load
Max SA = LIROS recommended Maximum Sail Area
WLS = LIROS stretch at working load
< = less than

LIROS Running Rigging Line Diameter Selection Guide