Marlow Blue Ocean® Doublebraid Control Lines

Marlow Blue Ocean® Doublebraid Control Lines

Marlow Blue Ocean® Doublebraid is the latest addition to their eco-friendly, sustainable Blue Ocean® product range.

The Blue Ocean® range is manufactured from 100% recycled rPET polyester sourced entirely from waste plastic bottles, so...

Marlow Blue Ocean® Doublebraid is the latest addition to their eco-friendly, sustainable Blue Ocean® product range.

The Blue Ocean® range is manufactured from 100% recycled rPET polyester sourced entirely from waste plastic bottles, so by choosing this eco-conscious option, you are making a small contribution towards turning the tide on plastic Clean Seas

Blue Ocean® Doublebraid Facts, Features and Plus Factors:

Suitable for all running rigging applications on cruising yachts for eco-conscious skippers and owners, Blue Ocean Doublebraid can be used for e.g. halyards, sheets, guys, reefing lines, tack lines, vangs/kickers, down/outhauls, furling lines, runner tails, preventers.

Blue Ocean Doublebraid is a versatile control line, but the bonus is that it has much less impact on our planet than other polyester ropes.

Core: 16 strand, braided high tenacity Blue Ocean® trademarked yarn
Cover: 24 plait braided high tenacity Blue Ocean® trademarked yarn

  • Sustainable
  • Flexible and comfortable to handle 
  • Spliceable
  • Good tensile strength
  • Excellent general purpose line
  • Good UV resistance
  • Good abrasion resistance
  • Low stretch
  • Sinks
  • Available in 5 attractive marble effect blended colours: Blue, Black, Green, Grey, Red
Diameter6mm8mm10mm12mm14mm
Weight per 100m2.84kg4.8kg7.47kg11.1kg15.6kg
MBL1280kg2360kg3390kg4380kg5570kg

MBL = Marlow Minimum Break Load

Jimmy Green Doublebraid Running Rigging Size Guide

The Jimmy Green Rigging Team have produced this line diameter chart from Marlow's own recommendations to assist you in specifying your Doublebraid for a halyard, sheet or control line.
Use a combination of your yacht length and the appropriate sail area to interpret the table and determine the closest match to your requirement.

Marlowbraid Sheets or Control Lines:
Yacht Length Overall6-8 metres9 metres10 metres11 metres12 metres14 metres16 metres18 metres
Approximate Sail Area in square metres
Main8.513.51618.523.537.55067
Genoa/Jib916.52533.54258.57183.5
Spinnaker37.54654.57192117150.5184
Marlow Recommended Sheet or Control Line Diameter 
Main8mm10mm10mm10mm12mm12mm14mm16mm
Genoa/Jib8mm10mm10mm12mm12mm14mm16mm18mm
Spinnaker8mm8mm8mm10mm10mm12mm14mm16mm
Spinnaker Guy8mm8mm10mm10mm12mm14mm16mm18mm

Marlow generally recommend reducing the line diameter by one size if you are considering a halyard with a dyneema core

The Jimmy Green running rigging line diameter chart is derived from the data in the Marlow Definitive Rope Guide: MARLOW LINE DIAMETER SELECTION GUIDE

MARLOW ROPE CARE ADVISORY