here are the measurements for new sail Hi Taipan sailors,

Below are the new measurements for the big head main that were voted into the Taipan 4.9 class rules. The change will take effect 18 months after the results of the vote were accepted. If you are looking to purchase a new big head sail please consider AHPC www.ahpc.com.au or Ashby Sails www.ashbysails.com who regularly support Australian Taipan sailing and TCAA fundraising efforts. AHPC have already began testing and development of the new sail plan.

Happy sailing - Kings

Hi Kings,
The following are the restrictions for the big head main as I sent through to Dennis last March.
They are slightly different to the original proposed measurements back in 2005.
The new measurements bring the sail area very close to the F16 sail area. This is about a 1% increase in area over the old Taipan mainsail area.

Regards,
Greg


The new restrictions for the bighead mainsail are set out below
I have also increased the maximum luff length of the sail as this can easily be accommodated by having a 50mm cut out at the head of the sail, exactly the same as the A-Class, Mosquito and F18. This brings the head of the mainsail almost level with the top of the mast. With this configuration the clew will also be 30 - 40mm higher allowing more room for mainsheet systems, mast rake and the skipper.

The changes to the restrictions for the mainsail would be; (the old restrictions are shown in red).

d. MAINSAIL:

ix. The top of the sail shall not exceed (400) 950mm measured perpendicular to the head.

x. At a point on the leech 1000mm down from the head, the nearest point on the luff shall be not more than 790mm distant including the bolt rope.- DELETED

xi. Measured to include the bolt rope:
At the 1/4 leech point, the nearest point on the luff shall be not more than (2090) 2015mm distant.
At the 1/2 leech point, the nearest point on the luff shall be not more than (1820) 1780mm distant.
At the 3/4 leech point, the nearest point on the luff shall be not more than (1260) 1410mm distant.
At the 7/8 leech point, the nearest point on the luff shall be not more than 1095mm distant.

The 1/2 leech point shall be found by folding the head to clew and smoothing the sail flat.
The 1/4 and 3/4 leech points shall be found by folding the clew and the head to the 1/2 leech point and smoothing the sail flat.
The 7/8 leech point shall be found by folding the head to the 3/4 leech point and smoothing the sail flat.

xii. The distance from the head to the clew shall be not more than (7940) 7950 mm
xiii. The distance from the clew to the tack shall be not more than (2150) 2100mm measured to include the bolt rope.

xiv. The foot round, when smoothed out for measurement, shall be a maximum of (75) 50mm.

15. MAST
f. Measurement bands shall be painted round the mast such that the inner distance between bands is not greater than (8050) 8100mm. Measurement bands shall be in a colour contrasting with that of the spar and have a minimum width of 25mm.

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Last edited by hobie1463; 05/04/07 11:47 PM.