When NOT to use full length battens?

I think you take a bigger rating whack in IRC for an oversized roach that would require the sail to be dropped in order to tack, not to mention the pain of not powering up properly out of the tack.

Sounds like someone made a large mistake with that sail design if they were planning to buoy race under IRC...

 

I'd be talking to the sail maker...!

 

I stand corrected there.
I suppose I do know that there not all the same, but had not thought about in that way.
On the full on big roach boys, they are depowered quite quickly by dumping the sheet rather than the track (trying to grind them back in afterwards when the gun goes off)
As far as this mast breaking bit is concerned, the only real difference I have noticed is that the fully batten rig (especially the big roach) really does power up a lot quicker and I have been on board boats that have broached hard over as they gybe cos people where not concentrating. and I have seen masts go (not sure where they broke) but they are more due to operator incommpitance rather than the fact they where fully battened.

Kim

 

http://www.youtube.com/watch?v=fSIe2w-cQ4s
http://en.wikipedia.org/wiki/Jibe
http://www.briontoss.com/spartalk/showthread.php?t=314
http://www.kerchevalave.com/cgi-bin...icSubject=The Agony and the Ecstasy&replyto=3

http://www.vidoemo.com/yvideo.php?i=UmJ0Y3BicWuRpNlZzbG8&mast-ing-down

 

All this effort and you still cannot tell us the specifics of your claim of firsthand knowledge. Not one of your links even anecdotally proves your point. Every post you make seems to trump your earlier posts in bizarre nature.

A video of a Laser sailing in heavy air. No full batten sail. No retrofit to full battens. Mast doesn't break at gooseneck.

If you knew about Laser sailing you would know about this failure mode. It is quite common.

This has nothing to do with your false claims. FAIL.

I wonder what the point is of posting the Wiki definiion of a gybe?

This has nothing to do with your false claims. FAIL.

No mention of how this mast was broken. No mention of full battens. No mention of any retrofit.

This has nothing to do with your false claims. FAIL.

No mention of use of full battens. No mention of retrofit to a full batten sail. Mast is not broken by gooseneck. Admits incorrect build method, causing scarf joint glue to let go.

This has nothing to do with your false claims. FAIL.

Not during a gybe. No mention of a retrofit to full battens. Obvious rigging failure, mast breaks at hounds first, does not break at gooseneck.

This has nothing to do with your false claims. FAIL.

 

The Sharpie 500 class was designed for full battened mains. The wear and tear on the mast track and sail lead owners to change to short battens. These were cotton sails and wooden masts. The groove for the bolt rope would wear and split. The forward section of the pocket would wear and the battens poked through. The battens would also snap if flogging in strong winds. They were made of ash or oak.

 

So your point is people should not use a sail type because it didn't work well in a class if you used 1950s technology to support it?

Yes, this post of yours does trump your last one in the bizarre factor. At least you are consistent.

By the way, you have yet to tell us the specifics of the retrofits to full battens that you have seen that caused masts to break. Why are you avoiding this?

 

I'm afraid you will make me cry again Paul B. I can't sleep because of you being so mean to me.

 

Don't know if it's done or not, but imagine if, instead of a single backstay, there were twin stays attached to a spreader at the top of the mast...

 

Some boats have a fiberglass batten that keeps the slack of the backstay from getting hooked on the sail. However, you need to loosen the backstay and tighten it when you tack. The tension on the backstay keeps tension on the forestay and also controls mast bend.

 

You have obviously never sailed on a boat with a backstay flicker.

You obviously don't understand the basics of how that type of rig is set up and works.

 

Paul B has a little problem. I can send some cheese to go along with your whine. Post something relevant to these threads.

 

A big crane can work sometimes.

 

ukhalsey - a realy respected sailmaker states this abut full lenght battens

And this is their sugestion about racing mainsails.

Sailed both types of sail and don't realy liked the full battened version. These sails are very nice If you get the right batens with right tightness and right wind speed. Othervise it is a headache

 

Yes i have raced on previous gen TP52 with split backstay, its a pain in the arse as exrea crew needed and in IRC ( as this was racing) you pay for it so the boat was converted to single backstay which is much easier and safer as you are not dropping it in each tack.
The sail plan also modified to suit.

No big deal if the're all hired guns but otherwise...