Snug rig loses tension downwind

I was out in 20kts this weekend and when on a beam/broad reach the jib would noticeably loose tension (sagging between hanks). Is that normal for a snug rig, or is my boat/deck flexing too much? I did not add tension to the jib halyard, so that may have fixed it, but I expect that upwind it would have been too tight. I have a couple of reasons to suspect the deck: I replace the mahogany tabernacle, and recently discovered core issues around the starboard chainplate. Just trying to figure out if anyone else has observed this?

Comments

Very normal in all dinghies without a backstay, Scots included.

Very normal in all dinghies without a backstay, Scots included. Nothing to worry about. It's actually fast on a jib reach. Other classes with adjustable shrouds [using hyfield levers or block & tackle] encourage big jib stay sag on a reach as it is fast. Check out a Snipe, Star, 505, etc.

One thing to consider is the tension of your jib halyard.

One thing to consider is the tension of your jib halyard. Was it properly tensioned? The toggle plate under the foredeck should be horizontal: http://www.flyingscot.com/graphics/rig3d.gif "If the sea did wild or wicked things, it was because she could not help them." - Hemmingway

Thanks for the help! That makes sense about the backstay.

Thanks for the help! That makes sense about the backstay. I was going to point that out about the toggle...it's completely lopsided (max-extent) to the forestay side. I thought that is what the North Snug tuning guide suggested: It is no longer necessary to use the toggle to set your rake, jib luff tension or slop in the rig. In fact, you will never ever need to look at it again; your forestay will take the entire rig load while your jib halyard will simply adjust cloth tension.

FS 338

[:)][:)] Perfectly normal and usually very fast.

[:)][:)] Perfectly normal and usually very fast.

As the North guide states, the toggle should be completely lopsi

As the North guide states, the toggle should be completely lopsided to the forestay side with the snug rig.

If the rig rocks forward slightly downwind, which is normal on a

If the rig rocks forward slightly downwind, which is normal on a non-backstay dinghy, its an advantage, this slightly opens the slot between the main and spin. Go fast! Have fun! -Michael
quote:
[i]Originally posted by SavageViews[/i] [br]I was out in 20kts this weekend and when on a beam/broad reach the jib would noticeably loose tension (sagging between hanks). Is that normal for a snug rig, or is my boat/deck flexing too much? I did not add tension to the jib halyard, so that may have fixed it, but I expect that upwind it would have been too tight. I have a couple of reasons to suspect the deck: I replace the mahogany tabernacle, and recently discovered core issues around the starboard chainplate. Just trying to figure out if anyone else has observed this?
Michael Mittman FS# 5804, Fleet 23 Corinthian Sailing Club White Rock Lake Dallas, TX

Michael Mittman

FS 5804, Fleet 23

Corinthian Sailing Club

White Rock Lake, Dallas, TX, USA