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Settings for Rooster Contender Main
By Rooster Sailing
I've been using the current Rooster Contender main since the end of 2010 and have achieved some good open meeting results with the following setup. I'm using a standard Wavelength mast and am 118cm (6ft 2in) tall and weigh around 80kg (12st 9lb).
The settings I'm using are really fairly standard for a contender but with the mast just a little straighter.
Mast rake 6490 (21ft 3.5in) - I can still get under the boom on a good day with full kicker on.
Rig tension - 136kg (300lb) - On flat water or in semi-trapesing winds I put the tension on a bit more, one hole down on the forestay.
Lowers - tension taken up on wires just before the forestay lever is level with the deck. One turn less on the staymaster adjusters if the conditions look like you’ll be sitting in the boat or overpowered. If in doubt then leave alone.
Spreader angle - 13cm (5in) from the mast track to a straight line between the shrouds, to give around 25mm (1in) prebend when the lowers are at the mid setting above.
The prebend is measured at the spreaders from the mast track to the halyard pulled down to the back of the mast on top of the gooseneck. The spreaders and lowers should be adjusted to give a prebend plus or minus 13mm (1/2in) for lighter or heavier helms respectively.
Now for a rough idea of use.
I'm generally finding that a little less kicker is required for the Rooster, this maybe that as the mylar cloth is stiffer than dacron and tensions up more easily, but I may be wrong!
I'm just talking about upwind here, but for downwind generally ease everything so that there are no nasty creases anywhere. On trapesing reaches keep the kicker pretty tight but watch out for boom drag and accompanying visit to the spreaders.
Really light winds. Just enough kicker to give an airfoil shape. No cunningham. Outhaul to cause sail to touch the boom. The foot inhaul about 40mm from the mast.This gives a flat sail to enable some airflow.
Light winds, up to semi-trapesing. Use mainsheet to control leech tension. Just take up the slack in the kicker. Cunningham to just take out the horizontal creases. The foot inhaul about 30mm from the mast. Outhaul about four fingers width between the boom and middle of the sail foot. The aim being to be fully powered up.
Fully trapesing. If overpowered keep pulling on the kicker until not overpowered or it can't be pulled anymore! Beware though that you can pull it on too much and find yourself then underpowered. Cunningham, take out the horizontal creases induced by pulling on the kicker. Outhaul about four fingers width between the boom and middle of the sail foot but start to tighten more if overpowered until the clew is at the boom band. The foot inhaul should be progressively tightened until it's against the mast. The aim being to be progressively powering the rig down.
Overpowered in survival conditions. Ease the kicker off a touch to allow the top third of the sail to feather. The top batten may even be inverted. Cunningham very tight. Outhaul at the boom band. The foot inhaul against the mast. The aim being to let the top flap away and get round or home.
The key thing then is to be able to recognise when you need to change gear which is largely achieved by adjusting the kicker. Also don't forget to raise the centreboard as it gets windier, as much as halfway back. Then ease the sheet in the really light and breezy stuff and foot off a touch. Then it's head out of the boat to see what's going on. What could then go wrong?