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Search took 0.03 seconds. Search: Posts Made By: Reefmagnet
Forum: Construction, Maintenance & Refit 04-05-2023, 13:20
Replies: 38
Views: 3,907
Posted By Reefmagnet
Re: Dye Penetrant vs X-ray Testing of Chainplates???

Dye penetrant. X-ray is more used for internal defects and wont detect fine cracks.
Forum: Construction, Maintenance & Refit 24-10-2022, 03:07
Replies: 18
Views: 2,758
Posted By Reefmagnet
Re: mast re-paint

Painted the backside of the stainless fittings. The mast/boom already had coats of paint applied prior to re-attaching the fittings.
Forum: Electrical: Batteries, Generators & Solar 10-10-2022, 13:10
Replies: 8
Views: 604
Posted By Reefmagnet
Re: Charging a single bank of two batteries in parallel

Use one battery as a cranking battery, and the other as a deep cycle house bank. Connect the two with an "ACR" (automatic charge relay).

Use an on/off switch for the cranking battery and a...
Forum: Deck hardware: Rigging, Sails & Hoisting 27-09-2022, 14:46
Replies: 17
Views: 2,373
Posted By Reefmagnet
Re: Rigging in north Queensland

The other guy is Andrew and operates out of the coral sea marina.
Forum: Deck hardware: Rigging, Sails & Hoisting 27-09-2022, 02:28
Replies: 17
Views: 2,373
Posted By Reefmagnet
Re: Rigging in north Queensland

Have you made inquiries around the whitsundays? there's a couple of specialist riggers plying their trade around there.
Forum: Engines and Propulsion Systems 09-09-2022, 05:42
Replies: 5
Views: 1,523
Posted By Reefmagnet
Re: repairing the fiberglass engine bed

Use bigger diameter and longer coach screws into the original bearer, after suitably preparing the holes for the new bolts.

It's also possible the core of the beds is mush. In this case you'd...
Forum: Construction, Maintenance & Refit 09-09-2022, 05:12
Replies: 50
Views: 5,177
Posted By Reefmagnet
Re: Chain plate sizing.

Pay the extra and get laser for this job. And by extra, it won't be that much more. There are both metallurgical and aesthetic benefits to be had from choosing laser.
Forum: Construction, Maintenance & Refit 08-09-2022, 05:16
Replies: 50
Views: 5,177
Posted By Reefmagnet
Re: Chain plate sizing.

Yep, laser cut. That's what I did. Got the bolt holes cut slightly undersized too, so just needed to ream the correct size drill bit through them to finish them off.

Cut from mill finish 10mm...
Forum: Flotsam & Sailing Miscellany 05-08-2022, 15:48
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

My lithium stocks have also gone through the roof. Uranium, not so much.

I thank the current fad of switching from oil powered ICEV's to coal powered EV's for this, as it is certainly proving to...
Forum: Flotsam & Sailing Miscellany 04-08-2022, 15:39
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

On the subject of fake experts, perhaps you can enlighten all those interested in why 99% of the world's coral is scheduled for deletion over the next 77 years?
Forum: Flotsam & Sailing Miscellany 04-08-2022, 12:52
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

^^ An example of the argument you make when there is no logical argument you can make that supports your distorted point of view.





Thirty six years to be precise. Possibly even longer...
Forum: Flotsam & Sailing Miscellany 03-08-2022, 20:49
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

Well that's an interesting question. I probably would justify my, no doubt, grossly enlarged carbon footprint whilst filling in my empty schedule by continually banging on about the need for "us" to...
Forum: Flotsam & Sailing Miscellany 03-08-2022, 18:16
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

I wish my livelihood involved having a billion dollars and 300 foot yacht :biggrin:
Forum: Flotsam & Sailing Miscellany 03-08-2022, 17:15
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

Great news


Great Barrier Reef coral cover at record levels after mass-bleaching events, report shows...
Forum: Construction, Maintenance & Refit 24-07-2022, 17:23
Replies: 11
Views: 1,754
Posted By Reefmagnet
Re: Corflute

Corflute is pretty delicate if unprotected. I have used it for making moulds for fibreglass with success. I think the biggest issue as a core material is that stuff doesn't stick to it very well...
Forum: Construction, Maintenance & Refit 06-07-2022, 16:16
Replies: 17
Views: 1,963
Posted By Reefmagnet
Re: Best way to restore brass/bronze? ports

Soaking in a vinegar and salt solution for a day or two will remove the heavy oxide. Then polish with a polishing buff wheel and brass polishing compound.

When back in service, let them...
Forum: Auxiliary Equipment & Dinghy 27-06-2022, 03:30
Replies: 262
Views: 20,061
Posted By Reefmagnet
Re: Outboards are incredibly polluting - WOW

Hmm, you got me thinking working backwards from the energy content of fuel.


Going metric for convenience....


One litre of fuel contains about 30 MJ of energy.


Assume a 3.5 hp two...
Forum: Auxiliary Equipment & Dinghy 25-06-2022, 14:46
Replies: 262
Views: 20,061
Posted By Reefmagnet
Re: Outboards are incredibly polluting - WOW

Quick quiz.


How many watts of solar panel are required to provide the equivalent of a gallon of gas per day?
Forum: Auxiliary Equipment & Dinghy 25-06-2022, 14:45
Replies: 262
Views: 20,061
Posted By Reefmagnet
Re: Outboards are incredibly polluting - WOW

Base load isn't a myth, but hydro storage is the solution where feasible.



Uranium can be extracted from sea water. Not quite ready for prime time at the moment, but it will be eventually.
...
Forum: Construction, Maintenance & Refit 25-06-2022, 14:35
Replies: 28
Views: 7,637
Posted By Reefmagnet
Re: Bending stainless steel tube for a bimini

If you fill tube with sand and cap prior to bending in a typical pipe bender, it will be less prone to kinking but still won't be able to do tight bends. If you can weld tube, you can buy mandrel...
Forum: Auxiliary Equipment & Dinghy 25-06-2022, 14:28
Replies: 262
Views: 20,061
Posted By Reefmagnet
Re: Outboards are incredibly polluting - WOW

I remember reading years ago that calculations concluded - using some well boated lake in the US as an example - that the surface should have a 4" (or maybe it was even even 8") layer of oil and fuel...
Forum: Flotsam & Sailing Miscellany 13-06-2022, 12:52
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

You want motivation? There it is ^^^
Forum: Flotsam & Sailing Miscellany 13-06-2022, 04:22
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

The Marine Park Authority do a great job. Most of that job they do has nothing to do with climate change.
Forum: Flotsam & Sailing Miscellany 13-06-2022, 03:36
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

I'd take a wild stab in the dark and say a regular payday. "Nothing to see here" doesn't cut the mustard when the rent has to be paid.
Forum: Flotsam & Sailing Miscellany 12-06-2022, 18:02
Replies: 569
Views: 49,175
Posted By Reefmagnet
Re: Coral Reef Status

All I can say as an answer is that I wish my stock portfolio was getting as smashed (https://elibrary.gbrmpa.gov.au/jspui/bitstream/11017/3916/3/Reef-summer-snapshot-2021-22.pdf)as the reef coral...
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