Not a build, a partial rebuild...

Build logs from members building catamarans, trimarans and other multi-hull variants.
44c
Posts: 1148
Joined: Tue Aug 08, 2006 5:08 am
Location: Hervey Bay, Qld

Re: Not a build, a partial rebuild...

Post by 44c »

Back working on School's Out.

Engine install near complete:

Image

As you can see, the powerhead is above the bridgedeck:

Image

From the front, pretty much completely tucked in:

Image

Making the repairs "disappear":

Image

Image

Image

Image

Image
44c
Posts: 1148
Joined: Tue Aug 08, 2006 5:08 am
Location: Hervey Bay, Qld

Re: Not a build, a partial rebuild...

Post by 44c »

Bit of an update.

Interior in primer

Image

Image

Image

Exterior in highbuild...

Image

Image

Image

Image

Image
Smooth Cruiser
Posts: 583
Joined: Thu May 11, 2006 1:51 am
Location: Brisbane

Re: Not a build, a partial rebuild...

Post by Smooth Cruiser »

Coming along nicely!
44c
Posts: 1148
Joined: Tue Aug 08, 2006 5:08 am
Location: Hervey Bay, Qld

Re: Not a build, a partial rebuild...

Post by 44c »

Image

Image
Had a big week painting last week.

Image

Image

Image

Image

Image

The repaired bits look as good as new.
Image

Should be finished painting this week. I'll be glad when that's over!
Finally
Posts: 223
Joined: Sat Jul 04, 2009 9:24 am
Location: Cairns

Re: Not a build, a partial rebuild...

Post by Finally »

Powering along and a fantastic finish on those hulls.

How many people have you had working on this rebuild as it doesn't seem to have taken that long (ignoring the break last year)?

David
44c
Posts: 1148
Joined: Tue Aug 08, 2006 5:08 am
Location: Hervey Bay, Qld

Re: Not a build, a partial rebuild...

Post by 44c »

Most of the time there's been two of us.
44c
Posts: 1148
Joined: Tue Aug 08, 2006 5:08 am
Location: Hervey Bay, Qld

Re: Not a build, a partial rebuild...

Post by 44c »

It's been a long haul, but finally:

Image

Image

Image

Image

Image

Image

Image

Image

She's back in the water!

Image

A very satisfying moment.

Another was when the surveyor asked "Which was the damaged hull?"

Not that you can blame him, It's completely impossible to tell.
groper
Posts: 239
Joined: Sun Nov 18, 2012 11:23 am
Location: cairns

Re: Not a build, a partial rebuild...

Post by groper »

Great work 44, looks fantastic.

Could you explain how the kick up rudders work and how they're built?
Finally
Posts: 223
Joined: Sat Jul 04, 2009 9:24 am
Location: Cairns

Re: Not a build, a partial rebuild...

Post by Finally »

Looks as good as new - great effort.

Now to get out there and enjoy it again.
44c
Posts: 1148
Joined: Tue Aug 08, 2006 5:08 am
Location: Hervey Bay, Qld

Re: Not a build, a partial rebuild...

Post by 44c »

groper wrote:Great work 44, looks fantastic.

Could you explain how the kick up rudders work and how they're built?
You can get a fair idea of how mine work by looking through my build thread.

The hydraulic cylinder and tillerhead are inside the cassette, which can pivot up. There's simply some flexible hydraulic hose connecting them.

I made the cassettes tapered so they have a positive 'fit' in the locked down position.

They're simply held down by dowels. Hit something solid and the dowel breaks, releasing the rudder to lift.

On School's Out they have mechanical steering, so it's a bit different from mine. Essentially there's a push/pull rod attached to a pivoting tillerhead on the ruddershaft.

The pivots for the rudder cassette and the tillerhead must be on the same plane.

Theoretically this setup shouldn't steer unless the rudders are fully down. (You really need universal joints) But with just a little freeplay in the system it will steer up to about 10' either way with the rudder raised slightly or free floating.

I recently installed kick-up rudders on to a Schionning 1160 which didn't have them. I also enlarged the rudders, they were very small, (although correct according to the plans) and the owner complained that they weren't effective, losing control in gusts when broad reaching.

We actually had some little stainless universal joints made. I'll take some pics later and post them.
Post Reply