Catalina - Capri - 25s International Assocaition Logo(2006)  
Assn Members Area · Join
h.jpg Home.
a.jpg Association Forum
s.jpg Ships Store
c.jpg Cruising
r.jpg Racing
t.jpg Technical Tips
g.jpg Photo Gallery - New
o.jpg Boat Search - Updated
m.jpg Manuals & Brochures
3rdrpt.jpg Swap Meet
l.jpg Links
f.jpg Officer Flag Line & Staff
b.jpg Bylaws & Constitution
 
1.jpg Members Area
1.jpg 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
Association Forum
Home | Profile | Register | Active Topics | Forum Users | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Rudders - Could somebody provide the history?		  New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

jandrus
1st Mate

Member Avatar

USA
79 Posts
Initially Posted - 08/23/2002 :  15:00:22  Show Profile
Hi -

I seem to remember reading some stuff on the subject but not finding anything in the archive today. Are the older messages purged or something?

Anyway - today I was given a NOS rudder for my C25. It is alleged to be from a 1984 boat and was never used. It pretty different from the rudder on my 1980 boat. My old rudder has a rounded leading edge. The new rudder has a sharp entry. My old rudder has a notch and an area, quite small, that winds up under the boat forward of the pivot point. This rudder does not. The casting quality on the new rudder is also pretty poor - ie the finish it bad, lots of print through.

Is this really a C25 rudder? Without any blade area forward of the pivot it seems like it will induce serious weather helm.

Thoughts? Thanks.

c25 #1942 s/v tako kichi
Edited by - on

Derek Crawford
Master Marine Consultant

Members Avatar

USA
3321 Posts
Response Posted - 08/23/2002 :  17:41:42  Show Profile
Justin - sounds just like the old style rudder - the lack of any area forward of the pivot point is the giveaway. And, you are correct - it gives more weather helm than you can deal with!
Derek
Edited by - on
Go to Top of Page

jandrus
1st Mate

Members Avatar

USA
79 Posts
Response Posted - 08/23/2002 :  17:46:12  Show Profile
Its definetly not the rudder that was normally on early C25's. I have looked at several and the rudders are all like mine. The area in front of the pivot is less than an inch. Maybe less. The blade is at least and inch and half thick two inches aft of the leading edge. The radius of the leading edge is approximately round in profile. This is on the boat.

The new blade has no notch at all on the leading edge. Is quite thin. And has a very sharp entry. Never seen one like it. Could it be the blade from a C250?

This came from the previous owner of the boat who got it from a friend. The friend got it on a new boat (claimed to be 1984 but who knows) and then got beaching rudder.



c25 #1942 s/v tako kichi
Edited by - on
Go to Top of Page

Dave Bristle
Master Marine Consultant

Members Avatar

Djibouti
10005 Posts
Response Posted - 08/23/2002 :  20:43:23  Show Profile
Our original equipment (1985) rudder has not a single square inch forward of the pintle line. The forward edge has a small step below the pintles, and then angles back slightly below the waterline. The trailing edge is absolutely straight at an angle from vertical. The bottom is straight and level. The entry is quite sharp.

Our new, balanced rudder has two steps below the pintles, and the trailing edge below the waterline is essentially vertical.

The older design is not as awful as some have suggested, but the newer one is sort of like power steering by comparison. Weather helm is weather helm--regardless of the rudder design. The rudder can simply make the forces to correct for weather helm less strenuous (and the associated drag is less evident to the helmsman).

Dave Bristle - 1985 C-25 #5032 SR-FK-Dinette-Honda "Passage" in SW CT
Edited by - on
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Topic Locked
 Printer Friendly
Jump To:
Association Forum © since 1999 Catalina Capri 25s International Association Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.06
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.