storm jib ??

[Egress]

Have created a rigged up a/c system for 99 26x. Works great but real hassle to sail wiht current setup. Would like to permanently mount the a/c unit in front of forward hatch to the deck and just leave out while sailing. Problem is 150% jib will not "go over" the a/c unit when tacking. Was wondering if I replace with a storm jib and and raise the forward attach point of the jib clew about 24 inches from deck bottom so that when jib is fully raised I can tack with no hang ups. Reason for this solution is that in Las Vegas is so hot is real PITA to lower and raise the a/c unit whenever we go for a sail. Often not worth the trouble so we motor more often than I would like. Any thoughts on this would be appreciated. Thanks

[Trouts Dream]

If you have a rolling furler (which I highly recommend) then just partially roll it in before tacking and voila....the let it out again if you will be on that tack a while. I have a 150 and when the lake is busy I roll it up to 100-120 size just so I can see under it. Not a biggy unless winds are real light (in which case I use my spinnaker)

[dennisneal]

I agree with Trout,(except for the part about the spinnaker, since I don't have one). If furling and unfurling your Genoa is too much trouble, you might just keep it partially furled all of the time.

[Egress]

Don't have rolling furler. Have a hank on setup that is why I am thinking to go to storm jib for clearance

[Sumner]

Don't have rolling furler. Have a hank on setup that is why I am thinking to go to storm jib for clearance

Is your only sail the 150 genoa? Do you also have a jib?

I think most true storm sails are either going to be too small or too heavy of a material or both to make a good sail for you. If you have a jib, maybe it wouldn't be too much for a sail shop to recut it a little smaller or find a new or used smaller Jib from a smaller boat.

Martin at Somerset sails....

http://somersetsails.com/

...would be a good one to talk to about this. He has always taken his time with me on the phone to explain things and offer suggestions. Give him a call...

http://somersetsails.com/location.htm

When we added a roller furler we also added a....



... Johnson lever and between it and the furler drum and the rest of the lower hardware the bottom of our sail is now about 16 inches off the deck and clears the ....



...rode bags and Ruth loves it as she can see under it now. It moved the CP up some I"m sure, but we can't tell with our skill level. To accomplish this I made new shrouds and moved the lower shrouds and forestay up the mast some.

Good luck,

Sum

Our Endeavour 37

Our Trips to Utah, Idaho, Canada, Florida

Our MacGregor S Pages

Mac-Venture Links

[K9Kampers]

Hey Sum, 2 coolers at the bow...for the "Anchor Beer"?!

Thish iz the Captain shpeaking, I'm going forward to check the anchor...

[Sumner]

Hey Sum, 2 coolers at the bow...for the "Anchor Beer"?!

Thish iz the Captain shpeaking, I'm going forward to check the anchor...
..

Hey I wish, the beer goes in here....



... a few cans at a time....

http://purplesagetradingpost.com/sumner ... de-22.html

Those ....



.......hard sided coolers are the neatest things for your rode if you don't have an anchor locker. Coming off anchor I can stuff the rode in them as fast as Ruth takes us to the anchor, no coiling just stuff it in. Drop the anchor and it all comes out with never a tangle or problem yet.

If anyone is interested there is more here....

http://purplesagetradingpost.com/sumner ... -10-7.html

....Also I did something similar on the Endeavour....



....even though it has an anchor locker. The tub on the left is way easier to put the rode in and for it to come out of. I'm going to have to reconsider how it is secured and so forth before we get in some bad weather, but I'd like to keep using it and use the anchor locker for the second anchor's rode like we did on the first trip.

Sum

Our Endeavour 37

Our Trips to Utah, Idaho, Canada, Florida

Our MacGregor S Pages

Mac-Venture Links

[Egress]

Thanks to all who replied to my question. Hauled boat back to house to do some mods after 4 days of fryng on the lake. Was so hot didn't want to sail in the PM altho wind was blowing cause too much hassle with a/c. Thanks all who replied as you have given me good ideas and definitely a solution to my problem.
Thanks again.

[ronacarme]

We have hank on head sails. Smallest is a 25 sq ft storm jib bot years ago for a Venture 17 and used on our 1988 Mac26D and now on our 2001 26 X on windy days. We fly it with elevated by a 2 ft tack pennant to get a better slot effect with the main and sheet lead angle to the track atop the cabin. I believe the foot clears the forehatch area by more than 2 feet.
Tho tiny compared to the main or working jib, it does add a bit of speed to windward compared to main only....one day about 3.2 mph with main only vs. about 3.7 mph with storm jib plus main.....I'm guessing by improving wind flow over the main (slot effect), as well as by adding 17% to sail area. It also aids sailing a bit closer to windward, than with main only.
ron

[Hamin' X]

I believe that the "slot effect" has been proven false. What is probably happening is that you are balancing the boat and reducing weather helm. With weather helm, you have to counter with the rudders, steering to leeward. The rudders are then acting like brakes.

~Rich

[Ixneigh]

Ive had nice sailing with a small jib. In fifteen k of wind the boats lively and handles easily. I can leave it up if the wind increases and reef the main and still have good sailshape.

Ixneigh

[mastreb]

I believe that the "slot effect" has been proven false. What is probably happening is that you are balancing the boat and reducing weather helm. With weather helm, you have to counter with the rudders, steering to leeward. The rudders are then acting like brakes.

~Rich

Rich, I've been looking for some "actual" engineering on sail aerodynamics. There's a real paucity of it on the Internet, or I'm not searching correctly. Everything I've seen about comparing rigs or sail shapes, mast drag, and slot effect are all just sailor's experience with no real double-blind testing, dynamic flow modeling, or wind-tunnel measurements. Do you know of a good source for real information on this stuff?

[Hamin' X]

Do you know of a good source for real information on this stuff?

http://www.arvelgentry.com/techs/A%20Re ... Theory.pdf

~Rich

[cmagnus4]

Do you know of a good source for real information on this stuff?

http://www.arvelgentry.com/techs/A%20Re ... Theory.pdf

~Rich

That's a well written paper and it really "kills" the theory of the slot effect. Rich, do you know of any recent publications/papers on creation of lift in sails? E.g. consequences for sail trim and tell tails.
Claes

[ronacarme]

Rich...I.don't have data plus or minus on slot effect theory validity, but I have to go by my experience reported above re increase in boat speed and closer windward ability, with that dinky storm jib and tall pennant added.
We avoid excessive weather helm, when flying main only, by letting out only about 3/8 of the CB line, which balances the helm nicely.
Thanks for the reference to the slot effect discussion.
Ron