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When we renovated the International 14, we did a full refit to Championship spec, everything was replaced and we choose to use Harken as our fittings supplier. Which meant we had a 14‘s worth of Allen blocks laying about so we reused a lot of those for the 600. Below for information is what we would have done had we not had those blocks lying about.
The continuous take up systems take a large proportion of the blocks used, 40% so the impact on doing those is significant. Cost wise low fiction rings are marginally cheaper than the Allen 20mm Dynamic blocks we used, but have higher friction, we would probably still gone for the blocks over the rings, even if we hadn’t had the blocks already.
In terms of the different manufacturers, we use Harken for ‘Championship’ spec boats and would have used their 16mm blocks for the take-ups and their 18mm carbo blocks for the loaded parts of the control systems. We did use the Harken blocks we had left over from the 14 for the forestay and bought the other Harken blocks used for the mainsheet.
In total we used 32 blocks across all the systems, 13 of which where parts of the take up systems, for the Cunningham and Vang.
Some ropes we specifically ordered for the boat, so we will give the lengths we ordered, some we used line we already had and they where cut and spliced to a length specific to us.
All rope was ordered from BoatRopes.co.uk
For clarity we will break it down system by system:
Forestay
Blocks used:
1x Harken 29mm T2 Soft-Attach Block
1x Harken 18mm Fly Soft-Attach Block
1x Clamcleat CL253
Rope:
Marlow Excel Racing 5mm
Shock-cord 4mm (Doubles as Centreboard shock cord)
Cunningham
Blocks used:
1 x 4mm Dog Bone
1 x Allen 20mm Double Dynamic Block (Cunningham purchase)
3 x Allen 20mm Single Dynamic Block (Cunningham purchase)
5 x Allen 20mm Single Dynamic Block (Continuous take up system)
2 x Allen 20mm Double Dynamic Block (Continuous take up system)
Rope:
2:1 Tail 2.5mm Spectra
4:1 Control line 4mm Marlow Excel Control (15 Metres ordered and cut to required length)
Vang
Blocks used:
3 x One inch Allen high load wire blocks
3 x Allen 20mm Single Dynamic Block (Vang purchase)
5 x Allen 20mm Single Dynamic Block (Continuous take up system)
1 x Allen 20mm Double Dynamic Block (Continuous take up system)
Rope:
Vang Tails 3mm Spectra (LENGTH)
2:1 Control line 4mm Marlow Excel Control (15 Metres ordered and cut to required length)
5mm Spectra boom loop (Made to measure but approx 40cm)
Outhaul:
Blocks:
Used existing outhaul block & bar and boom through block
2 x Allen 20mm Single Dynamic Block
1 x Clamcleat CL211 MK2 Racing Junior Mk2
Rope:
4mm Marlow Excel Control (7 metres ordered and cut to required length)
2mm Shock-cord 1.5 Metre (Cut to length)
Mainsheet:
Blocks:
3 x Harken 40mm T2™ Soft-Attach Block (Originally used 29mm T2™ Soft-Attach Block)
1 x Harken 57mm Ratchet Block — Swivel
1 x Ronstan Swivel base (Existing)
Rope:
8mm Marlow Excel Fusion 7 Metres
2 x 5mm Spectra block loops (Made to measure but approx 40cm)
2 x 5mm Spectra Bridle tails (Made to measure but approx 50cm)
4mm Shock-cord 1.5 metres (Cut to length)
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