K6 TUNING

    1-5 knots 5-8 knots 8-12 knots 12-15 knots 15-18 knots 18-22 knots 22+ knots  
Shroud Tension
Up wind
15 20 25 25 25 25 22 Never
Shroud tension Downwind 15 25 31 32 33 35 35+ Let
Lowers Tension Upwind Fully Slack Just Slack Just Slack Just Slack Just Slack Just Slack Just Slack Forestay
Lowers Tension Downwind     7   10     Go
Rake Upwind 8670 8670 8670 8600 8600 8600 or less (1 full hole down on shroud plate) 8600 or less (1-2 full holes down on shroud plate) Slack
Rake Downwind 8660 8660 8660 8650 8650 8650 8650 downwind
Spreader deflection 235 >235 235 235 235 235 235  
Spreader Length 480 480 480 480 480 480 480  
Kicker loose Just tight tight tight Very tight max max Up to 15 kts aim is to get the top telltale on the mainsail to be just stalling
Cunningham off off off Just remove luff creases Just remove luff creases tighter max  
Outhaul tight Ease so foot not creased Ease so foot not creased tight tight tight tight  
Jib Car 150mm 150mm 150mm 150mm 100mm 50mm End stop  
Jib Clew Middle hole or top hole in flat water Middle hole or top hole in flat water Middle hole Middle hole Middle hole Bottom hole Bottom hole Jib sheet tension – ensure that top and bottom telltales break evenly. In 15kts+ always ease in gusts
Mainsheet Centre Centre Centre Centre Ease in Gusts  
Mast deck puller slack Just tight Tight – mast straight to spreader Tight – mast straight up to spreader Tight – mast straight up to spreader ease ease Note – better to keep more tension on the puller and use more kicker to bend the mast

Rake measured from mast tip to transom /hull join
Tensions measured with Loos gauge on the shore with no mainsail up