Search found 491 matches

by Matt Haberman
August 1st, 2022, 5:31 pm
Forum: Technical Forum
Topic: SC 17 Asymmetric Weather / Lee Helm
Replies: 8
Views: 600

Re: SC 17 Asymmetric Weather / Lee Helm

I suspect the issue in both cases is symmetry of the rudder profile... I suspect both rudders are either asymmetrical in the same direction OR one rudder is symmetrical and the other is asymmetrical. This would result in Lee helm on one tack and weather helm on the opposite tack. This would also hol...
by Matt Haberman
July 30th, 2022, 10:31 pm
Forum: Technical Forum
Topic: SC 17 Asymmetric Weather / Lee Helm
Replies: 8
Views: 600

Re: SC 17 Asymmetric Weather / Lee Helm

The rudders are identical, no difference between the port and starboard side. The original super cat rudder had three notches, up, down, and a mid position for going out through the surf. I don't recall when the change was made to remove the mid position, but I'm going to say it was probably before ...
by Matt Haberman
July 28th, 2022, 9:03 pm
Forum: Technical Forum
Topic: SC 17 Asymmetric Weather / Lee Helm
Replies: 8
Views: 600

Re: SC 17 Asymmetric Weather / Lee Helm

Hello, Your experience with weather helm on one tack and lee helm on the other is not all that uncommon. You are looking at all the right things and I suspect you will find the problem with one of two things. Either one or both of your rudders are not symmetrical and the pivot point is not correct a...
by Matt Haberman
June 26th, 2022, 3:56 pm
Forum: General Discussion
Topic: Super Cat 19 Parts compatibility
Replies: 3
Views: 415

Re: Super Cat 19 Parts compatibility

The Standard 19 and the Supercat 17 both share the same mast length. The main difference between the two is that the SC19 mast had spreaders, the SC17 did not.
by Matt Haberman
June 26th, 2022, 8:01 am
Forum: General Discussion
Topic: Super Cat 19 Parts compatibility
Replies: 3
Views: 415

Re: Super Cat 19 Parts compatibility

Congratulations on your purchase of the SuperCat 19. The parts you mentioned are unique to the SuperCat product line, however many of them are common with other model sizes. Rudders are common with the entire product line, daggerboards were common between the 20 and 19. The mast profile was common a...
by Matt Haberman
November 25th, 2021, 10:35 am
Forum: Technical Forum
Topic: Backward-looking at the cable traveler
Replies: 4
Views: 1121

Re: Backward-looking at the cable traveler

Revintage, The cable was 1/4" Diameter 1x19 SS. Not sure on the diameter of the sheaves off hand, but I believe they were 2" diameter. If I am not mistaken they were a standard catalog wirerope sheave with a plain bore, ie: no bearing. Or if there was a bearing it was just a plain bushing,...
by Matt Haberman
November 24th, 2021, 9:16 pm
Forum: Technical Forum
Topic: Backward-looking at the cable traveler
Replies: 4
Views: 1121

Re: Backward-looking at the cable traveler

Revantage,
I would say you want to keep it to a minimum. On the old cable traveler, the slack was sufficient so that when under load the traveler car cleared the beam when near the ends. This meant that there was an inch or two of extra clearance when near the center of the beam.
by Matt Haberman
October 15th, 2021, 6:08 am
Forum: General Discussion
Topic: 19 wire traveler conversion
Replies: 4
Views: 1499

Re: 19 wire traveler conversion

The Traveler track should be screw "Through" the beam and threaded into a 1/4" thick backer bar inside the beam. We used 1/4" thick x 1/2" wide 6061 aluminum flat bar for the backer. The other option is to put nuts on every screw, feasible but a little tricky as you get towa...
by Matt Haberman
August 5th, 2021, 10:36 pm
Forum: General Discussion
Topic: Daggerboard Screw
Replies: 5
Views: 1547

Re: Daggerboard Screw

Use those too. Hang the board horizontal, trailing edge down.
by Matt Haberman
August 5th, 2021, 8:38 pm
Forum: General Discussion
Topic: Daggerboard Screw
Replies: 5
Views: 1547

Re: Daggerboard Screw

Drain plug :lol:

Seriously thou, the screw was used to hang the board during painting. When the paint is cured the hole is filled with 5200 and the screw is inserted.
by Matt Haberman
July 19th, 2021, 9:23 pm
Forum: General Discussion
Topic: Proper reeving of rudder lines?
Replies: 18
Views: 13732

Re: Proper reeving of rudder lines?

Interesting, I too have never seen the rudders rigged like that.
by Matt Haberman
July 19th, 2021, 8:00 pm
Forum: Technical Forum
Topic: Downhaul Rigging
Replies: 6
Views: 2004

Re: Downhaul Rigging

Robert, Keep in mind on the H18 w/ Comp tip and the A class the masts are quite bendy and the downhaul has a major effect on the sail shape and mast bend. The mast on the 22 is significantly stiffer and as a result, downhaul has a much smaller impact on mast bend and sail shape. If you put a large e...
by Matt Haberman
July 18th, 2021, 8:30 pm
Forum: Technical Forum
Topic: Downhaul Rigging
Replies: 6
Views: 2004

Re: Downhaul Rigging

Hi Robert, All of the ARC-22's shipped with the standard 6:1 downhaul system & three grommets in the mainsail as illustrated in the link Ghamby shared. The way that you string it is by starting at the exit block / cleat on the starboard side, go up to the middle grommet in the mainsail. Next, yo...
by Matt Haberman
July 18th, 2021, 8:21 pm
Forum: General Discussion
Topic: New SC17 owner
Replies: 4
Views: 1490

Re: New SC17 owner

Hello Genofleet119, You are correct that there were two different forestay assemblies for the SC17. The standard forestay consisted of a pigtail at the top, a turning block for the jib halyard, the forestay, a chainplate, the wire jib halyard and the rope segment of the jib halyard. The roller furli...
by Matt Haberman
July 9th, 2021, 10:24 pm
Forum: Technical Forum
Topic: Rolling and storing a sail.
Replies: 10
Views: 2248

Re: Rolling and storing a sail.

Kevin,
Yes, roll from the top down. Typically folding at the second batten thou. Usually the second batten in the main as well.