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mcp

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Everything posted by mcp

  1. mcp

    Tef-gel or?

    So I have acquired some stainless mast steps that are in great condition, that I want to install on my aluminium mast. I had planned to use Monel rivets [happy for other suggestions] and my questions was....should I use some tefgel on the rivets or something similar? My second and similar question....should I use some tefgel or similar on stainless nut and bots on the new anode I will be sticking on my shaft? Tips and alternative ideas are welcome.
  2. I suspect a few tons of water propelled the liferaft into the windows which were probably glass.
  3. When I click on that link they were all 1270mm wide and I have purchased it off them at 1270mm wide.
  4. Pressure increase, rather than decrease?
  5. http://www.adhesivetechnologies.co.nz/Products/Fabrics/Biaxial/
  6. mcp

    Dock lines

    Thanks guys. I have my new docklines via CRA. Sharp pricing compared to other companies as well.
  7. mcp

    Stern lines

    What scope would you drop your anchor at? Actually, could you describe the technique for stern too in a anchorage like this?
  8. Do any of the main sail makers use Hydranet as standard? and what is the premium?
  9. mcp

    Dock lines

    Cheers guys. So 3 or 8 strand nylon is the go. IT, you mentioned sizing, which haven't considered yet...are there any general guidelines there?
  10. mcp

    Removing Epoxy

    What are they using in place of Methanol in NZ now? Surely its not pure ethanol? Back on the main subject. You didn't mentioned Acetone in the above? I have used this for clean up and it does a great job. Is there a reason you have left this out or is one of the ingredients in the epoxy thinners? or?
  11. mcp

    Dock lines

    What is the general consensus on Dockline rope type and length? A recommended product and outlet would be great to know also.
  12. mcp

    Battery Choice

    The battery in your link is rated 120Ah at the 20hr rate. The hour rate is how capacity is measured and at 25 Degrees Celsius and more hours use will give you slightly elevated capacity. A true 120Ah would be rated at the 10hr rate like this battery https://waveinverter.co.nz/shop/deep-cycle-battery/fm120/ Also just something that seems to ring true 'almost' all of the time with common lead acid types, the heavier the battery, the higher the real world no BS capacity. A lighter battery with the same Ah rating is likely to have some marketing/ghost amp hours and we know we can't use thos
  13. It is probably working perfectly. 14.1v is likely its upper setting and 13.3 its lower setting.
  14. mcp

    House Battery Issue

    With the exception of high drain loads causing high voltage sag. I would still use an AGM [maybe the diesel motors battery] for the windlass and would have very short runs or over sized cables to high current consumers. They can be fussy with charging, as with most new battery types. I really am on the fence about going Lead Carbon or Lithium Iron Phosphate.
  15. Wheels, you know an awful lot. No question! Some of what you are saying above is 100% correct but some of the links you are drawing and examples you are giving sound plausible but but are not correct in physics and that is ultimately the test for anything electrical. I think if you and I got together with a whiteboard and some beers, we would soon easily understand what each other is saying. But continuing this on a forum is pointless as we are looking at this from different levels.
  16. *sigh* That would be Electro "Magnetic" Force Yes, there is a chemical reaction at the electrodes isn't there? It does not describe voltage, voltage only describes its potential.
  17. Wheels no and sorry, I do not want to disrespect you as you are very knowledgeable in so many technical areas and have taught me tons about repairs and other little golden musings while reading your posts on this website......but without being a load the battery can not be charged. Also, because a battery heats and gases, this proves the battery is a resistive load to the charger. Ohms law applies to every circuit..always. Multistage chargers are made out to be super technical devices and they really are not. Some of them that are running FPGA's [Field programmable gate array's - for I
  18. Easy. Batteries resistance [at its current state of charge - this changes as it charges] / voltage = Current. I = R/V is ohms law and this is a prefect example of how it works. A battery changer can not rewrite the laws of physics. I am very aware of how these chargers work but they are mostly a triumph of marketing over technology.
  19. The batteries resistance dictates charge acceptance and ohms law would cause a higher current if available to be the primary source. You could easily combine multiple different output voltages into a single static output voltage using buck boost regulators and feed the single regulated voltage to a single Mttp controller that could handle the combined amperage. I would exclude a wind generator from this though.
  20. Is Black Panther going to be entering in some rum races?
  21. Regional council have no jurisdiction over commercial marine activities. So can only pick on recreational water users.
  22. Probably not until there is a well written email/letter to someone in the media, that picks up the story and runs with it. A half decent journalist will rip their reasoning apart with simple questioning. Is there a wordsmith/spin doctor in the forum with contacts?
  23. I find it very hard to fault this post. So.... +1
  24. With your IT background, If you can do coding you will find work easily without a base.
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