Rudder carnage :: Catamaran Sailboats at TheBeachcats.com

Rudder carnage

Headhunter

Rank: Mate

Registered: Jan 18, 2006

Last visit: Aug 07, 2020

Posts: 156
Posted: Jun 18, 2012 - 11:16 AM

Well that's your problem right there...
benedict

Rank: Mate

Registered: Mar 20, 2012

Last visit: Jun 16, 2014

Posts: 248
Posted: Jun 18, 2012 - 12:22 PM

That there is enough to make a grown man cry.

Tom

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Tom Benedict
Island of Hawaii
P-Cat 18 / Sail# 361 / HA 7633 H / "Smilodon"
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klozhald

Rank: Chief

Registered: Apr 19, 2011

Last visit: Dec 10, 2024

Posts: 1461
Posted: Jun 18, 2012 - 03:11 PM

Makes me appreciate how thin those castings can get in places...

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Sheet In!
Bob
_/)_____/)_/)____/)____/)_____/)/)__________/)__
Prindle 18-2 #244 "Wakizashi"
Prindle 16 #3690 "Pegasus" Sold (sigh)
AZ Multihull Fleet 42 member
(Way) Past Commodore of Prindle Fleet 14
Arizona, USA
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MN3

Rank: Master Chief

Registered: Jun 20, 2006

Last visit: Dec 04, 2024

Posts: 7090
Posted: Jun 18, 2012 - 03:40 PM

mystere castings are made from empty molsen cans and elmers glue.

i have gone through a few sets myself

Edited by MN3 on Jun 18, 2012 - 03:41 PM.
erice

Rank: Mate

Registered: Feb 19, 2008

Last visit: Aug 26, 2023

Posts: 671
Posted: Jun 18, 2012 - 05:46 PM

makes me appreciate my old heavy 80's nacra castings
dichtbijzee

Rank: Mate

Registered: Jun 08, 2009

Last visit: Aug 19, 2013

Posts: 132
Posted: Jun 18, 2012 - 11:14 PM

Aren't those 1st gen H18 castings?

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Stefan, Denmark.
H14,H16,P16,P18,SC17,N5.8
Team StaySail
http://www.staysail.eu
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Headhunter

Rank: Mate

Registered: Jan 18, 2006

Last visit: Aug 07, 2020

Posts: 156
Posted: Jun 19, 2012 - 06:47 AM

dichtbijzeeAren't those 1st gen H18 castings?

Stock Mystere 6.0.
benedict

Rank: Mate

Registered: Mar 20, 2012

Last visit: Jun 16, 2014

Posts: 248
Posted: Jun 19, 2012 - 12:34 PM

Hey, this raises a question I've been pondering:

At some point I may break a rudder housing. I hope not. I never have before. But if an when the day comes, I'm kinda screwed. Not too many P-Cat housings lying around.

But I work in a machine shop. Structurally, it seems like a win to make a new housing out of two side plates and a central "spine" where the rudder pin goes. It could be a weldment or a bolt-together. Either way would work. This would also open up a lot of choice in materials. Even staying inside the aluminum family, using something like 7075 or 6061 that's been lightweighted on the mill would make for a light housing that's unlikely to crack like that.

Aside from class rules issues (which I don't really run into with a cat this old) are there any unseen problems doing this?

Thanks,

Tom

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Tom Benedict
Island of Hawaii
P-Cat 18 / Sail# 361 / HA 7633 H / "Smilodon"
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MN3

Rank: Master Chief

Registered: Jun 20, 2006

Last visit: Dec 04, 2024

Posts: 7090
Posted: Jun 19, 2012 - 02:47 PM

QuoteAside from class rules issues (which I don't really run into with a cat this old) are there any unseen problems doing this?

if you got da skills, time and gear... it is a win for sure.

i was at dinner last night with a friend who was a spar builder/welder. He is currently borrowing one of my spare upper castings because his blew out just like Headhunter's did.

He wants to build a jig and make some but he doesn't have the time.. and if he did you are still talking a 6 - 10 hours to get the prototype out of the jig.... He would have to make / sell many sets to justify the time needed... and he isn't in the rudder business (anymore)