Dumb Sail Question

[Mick]

I am a relatively new Mac owner . We purchased this boat a few months ago and between working out some pretty big bugs , and the lack of any useable wind we have not had it out much.
Before this was a flying scot which is a kick and very straight forward.
Now to my dumb question. We got out today for awhile on one of our local lakes near OKC. The wind was up at about 12 MPH according to the radio. I decided to try out the Jib which is on a Furler system. Pulled it to the mast , and to my surprise it was much bigger than I expected than . Plus it was not completely unrolled. Next it kept catching on the life lines and never completely filled with air. When I tried to reroll it , it would not roll up completely. I talked to the sail warehouse , and he thought there was many sizes for that model.
#1 does anyone have the measurements of the proper jib for that boat with that system.
# 2 I plan to unwrap and reroll by hand tomorrow . I suspect that it has to be a tight roll . Could that be the cause of it not wanting to reroll all the way with the auto system.
# 3 any other thoughts / suggestions would be appreciated
Thanks in Advance
Russ Marooney

 

[Mick]

I just found out from the previous owner that the jib is a 150% above standard. That answeres one question. Now to find a standard Jib.

 

[Fred R]

Big Jibs

You have a 150% jib.
A simple way to Jib size is to remember a 100% jib fills the triangle from the mast forward to the bow.
A 120% passes the mast by about 20%....
I'm sure this simplistic answer will raise some uh....discussions.

Rewrap the furling line, after rolling up the sail by hand, and put 2-3 extra wraps on it.
That should wind the sail all the way up.

Keep the big jib...you'll need it to get that rig going, especially in light air.

fred

 

[Mac Daddy]

You can always reduce sail by partially rolling up the furler. Mark the jib when it's rolled out to 100%. You loose some sail shape but thats the price you pay with a dial a jib.

 

[Gregg9020]

As for catching on the lifelines, you need to run the jib sheets outside the lifelines back to the cockpit. You should have a set of cars on the outside gunnale with a swivel padeye. Rund the lines outside through these and to your winches. If you are pointing the boat the right way, the sail will fill. One thing to caution you on, is that if you have it furled all the way out, and you have more than 12-15 mph wind, the genoa might backwind you main causing it to flap a bit. I sail a 25 with a 150% Genoa, on a furler, and I love it. I can pass 30 footers in SF Bay.

Keep the sail, and have fun with it.

Gregg

 

[Gregg9020]

Here we are with it partially furled.

As for catching on the lifelines, you need to run the jib sheets outside the lifelines back to the cockpit. You should have a set of cars on the outside gunnale with a swivel padeye. Rund the lines outside through these and to your winches. If you are pointing the boat the right way, the sail will fill. One thing to caution you on, is that if you have it furled all the way out, and you have more than 12-15 mph wind, the genoa might backwind you main causing it to flap a bit. I sail a 25 with a 150% Genoa, on a furler, and I love it. I can pass 30 footers in SF Bay.

Keep the sail, and have fun with it.

Gregg