Island Time

One of these works great

You mean an ST50? See here https://www.hisse-et-oh.com/store/medias/sailing/5dd/28a/653/original/5dd28a6539819f3668e5f949.pdf

One offer so far, 2 others expected today, current offer $1800, best offer over $2k will own it...

Does not need a CPU, displays are nmea2000. Suit a race boat most likely, with a Triton, Triton 2 or H5000 system, but will work (with adapter) on Raymarine Seatalk NG or any other NMEA2000 system. Opportunity to get good sized mast instruments at a great price for someone…

I have a neighbor looking to sell this. Looks in new condition, he says unused. Suits NMEA2000 system. This setup is around $4K new, and still current model. Includes 3 x 2020 displays and mast bracket. Offers??

Hurricane Rigging. Unit 4, Waikawa Marina Picton 7220 0228822584 service@hurricanerigging.co.nz

Support NZ Business! https://smartswitch.co.nz/downloads/specs/BSW 1000.pdf Call them if needed, Talk to Neil, and tell him Matt Paulin referred you. He designs these (and supplies Raritan their controllers, and other well know devices like Fire Boy). He has bilge systems for one (as above) up to about 16 pump locations IIRC. Also cellular comms for his gear so it can txt you, or you can txt it to turn stuff off/on or get warning/info from/to the boat, if you want that level. Neil's a nice guy, and a sailor...

Looks like foam got wet via inadequate shaft seal. Foam broke down unevenly, allowing excess strain on tangs, which work hardened and broke. Little corrosion evident, except for one small patch of galvanic corrosion on shaft....

No Roller bearings in IT, vesconite bearings, just bushes really. These ones I put in in 2002, no sign of wear yet, close on 30,000 Nm since then. Yes, the tangs (3mm or so stainless) were broken, just sent the shaft to the fabricator to replace the tangs in 6mm, and larger gussets. About $2k for the stainless work.

Nope, normal rudder bearing play test at antifouling time, revealed movement of shaft in rudder, not heaps, but should be none

I will use 80kg foam or above. Due to the nature of the internal shape, frames etc, pourable foam (urethane or Epoxy) ensures no voids, it's very difficult to get an exact match with rigid foam. The rudder is off and stripped, the internal frame tangs are broken in several places. Pics to come... 1st job has been to clean up the shaft and frames for repair...

All three of those are great anchors! What shape will fit the bow best might be the way to choose....

Launched after antifouling in the weekend today. After work tonight, dropped the rudder in the berth and took to the workshop. Tomorrow i'll cut one side out and remove the foam to inspect the frame....

Not for commercial survey. Most private vessels don't have ground plates. You don't have to have a ground plate for an ewof. Your ac ground should be connected to your DC ground (bus bar, engine, whatever it is) at ONE location only. IMO you should have a galvanic isolator in the AC ground, near the shorepower connection. This is only strongly advised in the regs. The SSB uses flat copper strap as it works better than a cable for RF grounds. Round cable is not great for a ground plane connection. This is NOT an electrical ground, but an RF ground, they are very different!

Thanks, yes a few calls to make tomorrow!

Yes, Higher density means harder for the frame to move thru the foam... Jeffa rudders use 90 Kg/m3 foam. The compressive strength of the foam is probably more important, so when the frame presses on the foam it does not give, but seems hardly anyone provides that.. Still researching...

PHYSICAL FEATURES (Free Rise Foam)Density34-35kg/cubic metre

Yeah, saw that, but its not really dense enough to be ideal to use in a rudder. Needs to be about 16lb/ft2 or 80kg/m2...

I need to rebuild my rudder. Who knows where I can buy some suitable closed cell pourable foam? I believe it needs to be about 16lb density, urethane. But thats from Mr Google, so any advice would be appreciated...

OK, looks like all taken this shipment - I'll order some more...

4 left at this point....

13.7m (45 ft)

Ive got 10 on order, currently en route. They'll be $50 + GST each. Eta about 10 days...

Rod, the guy who runs marine how to, has had a major medical event a while back. Currently the store seems not to be working, You could try sailrite, https://www.sailrite.com/Trimmable-Butyl-Tape-3-4

Yeah, I would, then the spartite comes out with the rig - UNLESS then collar is not smooth, or is stepped at all. If that's the case, then don't use wax, and just cut it off if you need to remove the rig again.