The traveller on an ILCA may look like a simple piece of rope, but it plays an important role in how smoothly the mainsheet system works. A correctly rigged traveller ensures the mainsheet block can move freely across the stern during tacks and gybes, reduces friction in the mainsheet system and prevents the sheet from catching on the transom corners.
Small details such as rope construction, traveller tension and splicing make a noticeable difference in performance and durability.
According to the ILCA Class Rules:
Rule 3(h) Traveller
The traveller shall be a single line. It shall be rigged as a simple closed loop through the traveller eyes and the free end passing through the traveller cleat. A splice that does not extend through the nearest traveller eye may be used at the non-free end. A spring, ball or tape may be used between the traveller blocks.
In this guide we explain how to rig an ILCA traveller correctly, why tension is important and why many sailors today choose modern Dyneema traveller lines.
What the ILCA traveller does
The traveller is the rope running across the stern of the boat between the two traveller eyes. The mainsheet block runs on this line and moves from side to side when the boom crosses the boat.
This system allows the mainsheet to maintain the correct sheeting angle while keeping loads manageable. Even though the ILCA traveller is simple compared to larger boats, it has a direct influence on how freely the mainsheet system runs.
A poorly rigged traveller can cause the mainsheet block to catch on the stern corners or create unnecessary friction during manoeuvres.
Why traveller tension is important
Unlike many other dinghies, the ILCA traveller should normally be rigged quite tight.
The goal is to keep the traveller as low as possible across the stern. This allows the mainsheet block to move as far outboard as possible. When the block can travel further outboard, the boom is sheeted more efficiently which improves sail shape when sailing upwind.
If the traveller line stretches under load, the traveller block moves inboard. This slightly changes the sheeting angle and can reduce the efficiency of your sail trim.
For this reason, low stretch rope is essential. Many sailors tension the traveller so that it stays firmly in place even under pressure. Using a low profile carbon tiller also helps because it provides more clearance and allows higher traveller tension without interference.
What matters when choosing a traveller line
Four characteristics are especially important when selecting the right traveller rope.
Low stretch
You want the traveller to stay tight under load. If the rope elongates, the traveller block moves inward and the sheeting angle changes.
Dyneema SK78 is widely used because it has extremely low stretch compared to traditional polyester ropes.
Smoothness
The traveller runs directly underneath the tiller. You want minimum friction between the traveller line and the tiller so that the block can move freely during manoeuvres.
A smooth braided Dyneema construction helps reduce friction.
Thickness
The rope should be thick enough to minimise stretch but not so thick that knots or splices hit the underside of the tiller.
Many sailors therefore use lines around 5 mm to 6 mm diameter.
Durability
Traveller lines are constantly moving and rubbing against hardware. Wear often occurs when the rope passes over the transition between the tiller and the tiller wear plate, especially when sculling.
A durable rope significantly improves lifespan.
Comparing traveller rope types
Different rope constructions behave very differently on the boat.
5 mm double braided Dyneema traveller line
This is the type used in the LiveWatersports setup.
Characteristics:
- Low stretch
- Smooth running through the system
- Compact diameter
- Very high strength
- Excellent durability
Another important advantage of a Dyneema line with a braided outer structure is its abrasion resistance. The braided construction protects the fibres from wear when the traveller rubs against the tiller or hardware.
The Robline SK78 traveller line we supply is delivered pre-spliced with an eye splice and cut to 3.5 metres, which is the ideal length for most ILCA setups.
6 mm single braid Dyneema
Many sailors also use 6 mm single braid Dyneema traveller lines.
Advantages:
- Very strong
- Very low stretch
- Easy to splice
- More affordable choice
Disadvantages:
- Less abrasion resistant than braided constructions
- Fibres can wear faster when rubbing against hardware
- Bulkier knots beneath the tiller
This lower abrasion resistance is one of the main drawbacks of single braid Dyneema when used as a traveller line.
Polyester traveller line
Traditional polyester rope is still found on many boats.
Advantages:
- Low cost
- Easy to replace
Disadvantages:
- Noticeably more stretch
- Higher water absorption
- Shorter lifespan
- Less consistent traveller tension
For sailors who train or race frequently, polyester lines are generally considered a less optimal solution compared to Dyneema.
Traveller line length
Most ILCA traveller setups use a line of approximately 3.5 metres.
This length allows enough rope to pass through both traveller eyes, run through the traveller block and still leave enough tail to adjust the tension in the cleat.
The LiveWatersports traveller line is supplied ready to install at this length.
Splice vs knot
Modern traveller lines are often supplied with a spliced eye.
A Dyneema eye splice is compact, clean and very strong, making it ideal for traveller systems where space beneath the tiller is limited.
When installing the traveller, sailors typically secure the splice with a small half hitch to fix the position of the line and prevent movement.
Knots such as a bowline are also used, but they create more bulk and can sometimes interfere with the underside of the tiller.
Step-by-step: Installing the ILCA traveller
Installing the traveller is straightforward and only takes a few minutes.
Step 1
Feed the traveller line through the starboard traveller fairlead at the back of the cockpit.
Step 2
Pass the line through the traveller block attached to the mainsheet system.
Step 3
Lead the line through the port traveller fairlead.
Step 4
Connect the free end to the spliced eye to create the closed loop. Make sure the two sections of line run parallel and apply tension to the system.
If you are using a spliced eye, secure the position with a small half hitch to keep the line neatly in place.
Step 5
Lead the remaining tail through the traveller cleat and tension the line as much as possible.
The traveller should now sit tight across the stern, and the mainsheet block should move smoothly from side to side.
Common traveller wear points
Because the traveller moves constantly, some parts of the rope wear faster than others.
Typical wear areas include:
- the traveller eyes at the stern
- contact points with the traveller block
- the section beneath the tiller
- the splice or knot
Wear can increase when sculling because the rope may rub across the transition between the tiller and the tiller wear plate.
Checking the traveller regularly helps prevent unexpected failure during racing or training.
Final setup tips
For the best performance
- Rig the traveller tight so the block can travel fully outboard
- Use a low stretch Dyneema rope
- Avoid oversized knots beneath the tiller
- Inspect the rope regularly for wear
A well set up traveller ensures the mainsheet system runs smoothly and reliably in all conditions.
Traveller line for ILCA sailors
The Traveller – 0-Kink SK78 5 mm – Robline offered by LiveWatersports is designed specifically for ILCA setups.
The Dyneema construction provides very low stretch, smooth handling and excellent abrasion resistance. Delivered at 3.5 metres and supplied with an eye splice, it is ready to install directly on your boat.
For sailors who want a reliable and smooth mainsheet system, upgrading to a modern Dyneema traveller line is a simple but effective improvement.
