Well that's your problem right there...

That there is enough to make a grown man cry.

Tom

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

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

--
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
--

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.

makes me appreciate my old heavy 80's nacra castings

Aren't those 1st gen H18 castings?

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

dichtbijzee

Aren't those 1st gen H18 castings?

Stock Mystere 6.0.

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

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

Quote

Aside 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)