Association Forum - Dimensions for a 135% furling jib?

Assn Members Area · Join

Home.

Association Forum

Ships Store

Cruising

Racing

Technical Tips

Photo Gallery - New

Boat Search - Updated

Manuals & Brochures

Swap Meet

Links

Officer Flag Line & Staff

Bylaws & Constitution

Members Area

Join the Association

Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.

Association Forum

Username:	Password:
Save Password
Forgot your Password?

All Forums

Catalina/Capri 25/250 Sailor's Forums

Catalina 25 Specific Forum

Dimensions for a 135% furling jib?

New Topic

Topic Locked

Printer Friendly

Author

Topic

monty0
1st Mate

Member Avatar

USA
51 Posts

Initially Posted - 07/18/2007 : 18:45:27

Our boat came with a 150% furling jib and its an old monster to handle on our lake. The sail and bowlines on the sheets get hung up on the shrouds especially in light winds. Folks here recommend a 135. We have an older Harkin furling system and I'm looking into purchasing a previously owned sail with some life left in it from Minney's. They have asked me for the dimensions I looking for. Given that I don't have a 135%. I'm not exactly sure what those dimensions would be. Can anyone out there suggest what those dimensions might be?

Monty

1977 Catalina 25 #66 SRSK "Prana"

Edited by - on

Frank Hopper
Past Commodore

Members Avatar

Pitcairn Island
6776 Posts

Response Posted - 07/18/2007 : 19:28:32

Without getting into a lot of detail, an foot of 13'-14' luff of 25'-28'
My 135 is a full hoist 135 and has a luff of 28' with the furler it makes it a full hoist. Most 135s are not full hoist and with a furler would be around 25' on the luff.

Edited by - on

Dave Bristle
Master Marine Consultant

Members Avatar

Djibouti
10005 Posts

Response Posted - 07/18/2007 : 20:04:29

Frank's also looks like something of a deck-sweeper. My 130 had a considerably higher clew, thus shorter leach It also had about a 10" wire pennant at the head, so it wasn't "full hoist"--possibly due to the requirements of the Hood furler. I don't have the dimensions, since I don't have the boat.

Edited by - Dave Bristle on 07/18/2007 20:09:03

BruceL
1st Mate

Members Avatar

USA
30 Posts

Response Posted - 07/18/2007 : 21:32:23

I've been checking a Minny's for the same sail
I don't think that they have one.
I priced it at Ullman and It's around 800.00
at that is for one with a #6 tape and a 28 luff

Edited by - on

ajada
Deckhand

Members Avatar

USA
19 Posts

Response Posted - 07/19/2007 : 05:30:46

I have a used 135 still good for cruising for sale. It fis a tall rig so it will work on a standard rig. If you are interested...

Arch Altman
82 TR FK #3160
raleighwoodcab@aol.com

Edited by - on

Dave Bristle
Master Marine Consultant

Members Avatar

Djibouti
10005 Posts

Response Posted - 07/19/2007 : 08:38:11

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by ajada
 I have a used 135 still good for cruising for sale. It fis a tall rig so it will work on a standard rig...<hr height="1" noshade id="quote"></blockquote id="quote">
If you amputate it at the knees

Edited by - on

Frank Hopper
Past Commodore

Members Avatar

Pitcairn Island
6776 Posts

Response Posted - 07/19/2007 : 08:52:38

I used a J-24 150 as a 135 on my '82 Catalina 25. I worked very well and are readily available from local J-24 sailors.
This is a j-24 150 on my '89 It looks to be about 26' in the luff.

Edited by - on

John Russell
Master Marine Consultant

Members Avatar

USA
3444 Posts

Response Posted - 07/19/2007 : 10:27:56

Here's another novice question.

Why is there so much discussion about the size of the sails? What I mean is, the IJPE dimensions are known. The Tech Manuals have the IJPE numbers and the manufacturer's recommended sail dimensions for the 150% and the 110%(Page 9 of the Owner's Manual) Wouldn't the 135% dimensions just be a matter of arithmetic? 150:30::135:X X= 27

Am I missing something?

Edited by - John Russell on 07/19/2007 10:38:53

Dave Bristle
Master Marine Consultant

Members Avatar

Djibouti
10005 Posts

Response Posted - 07/19/2007 : 10:48:24

Edited by - on

John Russell
Master Marine Consultant

Members Avatar

USA
3444 Posts

Response Posted - 07/19/2007 : 11:19:10

Thanks, Dave! That clears it up!

Edited by - on

dlucier
Master Marine Consultant

Members Avatar

Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 07/22/2007 : 20:33:25

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by John Russell
 Am I missing something?
<hr height="1" noshade id="quote"></blockquote id="quote">

The percentages for headsails are based on the "luff perpendicular" measurement of the sail in relation to the J dimension of the boat.

[url="http://www.cruisingdirect.com/LP_Measure.htm"]Calculating the Luff Perpendicular[/url]

Edited by - on

John Russell
Master Marine Consultant

Members Avatar

USA
3444 Posts

Response Posted - 07/22/2007 : 21:14:59

That really clears it up for me Don. Thanks. Now I'm just left with the question of luff length. It seems to me that luff length is a specific known quantity, yet, the questions seem to persist. Isn't the luff of the 150, 135, 110, etc, the same? It is obviously dependent on the furler vs. hanked on, etc., but for a given boat, It seems to me that it would be the same. It seems to me that if you shorten the luff then the overall sail area may not actually increase by the amount anticipated. Desirable when looking for a stormsail but a problem when looking to increase sail area.

Edited by - on

Frank Hopper
Past Commodore

Members Avatar

Pitcairn Island
6776 Posts

Response Posted - 07/22/2007 : 21:32:01

Nope, a 110 anticipates heavy air, to further reduce sail area they have shorter luffs, keep it low in a blow or you will heal and go slow. Big genoa are all about getting as much sail up as high as you can to catch the air; a 135 is a compromise. I have a custom 135 that is full hoist and a deck sweeper because I want the maximum sail area with the least overlap, I sail in heavy wind most of the time and this is what I wanted my furling sail to be.

Edited by - Frank Hopper on 07/22/2007 21:33:53

Dave Bristle
Master Marine Consultant

Members Avatar

Djibouti
10005 Posts

Response Posted - 07/23/2007 : 11:06:22

The other principal variable related to the leach and the foot dimensions is the height of the clew. Racers with hank-ons want deck-sweepers, while cruisers with rollups generally want the better visibility and easier handling of a higher clew. (It also rolls up better.) Thus, the LP measurement can be from different points along the luff, and the other two measurements will vary accordingly.

Edited by - Dave Bristle on 07/23/2007 11:11:06

monty0
1st Mate

Members Avatar

USA
51 Posts

Response Posted - 07/23/2007 : 17:30:15

I'm wondering about the length of the leech for a 135. Is there some formula to figure that outL I see with my Harken MK11 Jib furling system I have a eye to eye sail length of 27'7", I'm thinking I want a foot of 13 or 14 feet.

Thanks for the informatrion so far!

Edited by - on

Frank Hopper
Past Commodore

Members Avatar

Pitcairn Island
6776 Posts

Response Posted - 07/24/2007 : 00:46:12

The leech is your call, it is a personal preference. I have a really long one for maximum sail area. Many want high clews as Dave said, you need to make that call yourself.

Edited by - on

Topic

New Topic

Topic Locked

Printer Friendly

Jump To:

Association Forum

Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.