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aardvarkash10

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Everything posted by aardvarkash10

  1. Another little project going on is the adjustable sheet leads for the Genoa. I posted in the tech area on the 3mm dyneema that will be the adjusting line for these. It looks like I'll be able to run a 3:1 purchase through these low friction rings. That will be controlled by a 2:1 purchase set up in normal blocks with cam cleats and 6mm braid. The low friction rings are 50mm diameter, 10mm cross section and weigh 33g on our electronic kitchen scales. Through AliExpress they landed on my doorstep for $6.70 each ( I got 6 of them). They are rated to 22kn, and will take a far higher
  2. Clevedon to Te Kouma and back for the weekend. As usual for us a mixed bag of minor catastrophes and simple pleasures. Winds were light and shifty and we motored a bit. Still, little blue penguins, fish jumping everywhere in Te Kouma harbour, nice sunset, good wine. Highlights include untangling a spinnaker from the furled headsail - blown inside-out by a 180 degree shift in a 20 second squall. Also, we cannot get up the Clevedon river at low tide plus 2 hours. A keel trench testifies.
  3. a police station in a black neighborhood?
  4. *snigger*. Scored a 0.9mm Tig rod from the tradies at work today with exactly this in mind!
  5. "My partner is a professor of environmental science, so we are passionate about predator control" Taking a cat aboard your yacht while cruising in the gulf kind of redefines passionate about predator control for me. https://i.stuff.co.nz/auckland/128468688/castaway-cat-comes-back-10-days-after-falling-off-a-catamaran-near-kawau
  6. where's the fun and learning in that??😁
  7. Thanks wheels - I'm a total noob in regards the use of what are to me high tech fibres. The other end will be similar in technique, so the load is completely off the cover - all through the core. The line is about $1 a metre and I'm using about 8m in total - if I have to replace it yearly or less, its not a biggie. Its also on a non-critical component so if it fails at worst I have a flappy genoa sheet and/or a twist in the sail. When I get better at double braid splicing I'll go with a full cover, but at the moment my attempts end up looking like a spider has taken a huge dos
  8. More realistic than the ground effect flying boats that were touted last week as "operational as early as 2025".
  9. Not from what I read. Development over 10 years or more, into the market by 2025. And the $13b includes all investment in battery technology.
  10. yup - cos that's what the video said to do!
  11. Nice! Are the multiple lines to the leach so you can tune the shape of the foil?
  12. I am changing the genoa sheet leads to low friction rings. These will have 3mm dyneema line as the control line in a double purchase set-up running back to a conventional block that uses 6mm yachting braid for handling, again in double purchase. So I had to learn how to eye splice 3mm double braid dyneema. It's a fun learning experience once you get your head around the minute scale of what is happening. A big doll maker's needle makes a fid of sorts and the tweezers help pull the loose ends through the core. Test method is a bit dodgy- will it hold an 85kg person suspende
  13. The old rogue... Is he selling his?
  14. Latest ECMWF update in windy has shifted the track east a bit. Also changed the southerlies for Hauraki on Monday to stronger easterlies.
  15. Earth weather images are live weather overlaying a historical map - effectively googlemaps. When you zoom in you are getting that historical information, not live.
  16. I'm not sure that boat manufacturing and repair/rebuild is such a significant part of the polymers market in NZ. Its high visibility, but industrial stuff like refrigerated truck bodies probably uses more by a long shot. The boating mags are aimed at end users by and large - the vast majority of them would be hard pressed to identify the difference between resin and hardener even when its written on the container.
  17. NZ is a very small market about as far from major manufacturers as you can get. In that environment importers reduce cost and risk by only importing a narrow range of products. This applies in pretty much every product category you care to look at. Some people I knew in the 90s set up a small specialist epoxy manufacturing business in Auckland. It went under. The product was good, but the market was too small and cost of establishment swallowed them. Things may be different now. Of course, you are free to import the products and distribute them in NZ if you think there is a
  18. Thanks for the input all. I especially appreciate rigger's expertise living on posthumously, and thanks Rats for the insider's view. I have found hard bouyancy jackets too bulky and so don't wear them when I should. This imo negates the positive features they have. An inflatable has risks, but at least I am inclined to wear it all the time. This balance of convenience against compliance weighs in favour of an inflatable for me. It looks like I should head to the spendy end of the market though. And get it regularly serviced. Such is life.
  19. We have two on board, looking to add another pair. They seem to range widely in price - from this sort of thing to this sort of thing. What are the real world differences?
  20. 3-week haul-out in May in no specific order. antifoul repaint topsides repair longitudinal crack line in the inner cabin roof new name ceremony!! stern gland standing and running rig inspection inc replace bulbs/LEDs in the mast lights and possible spinnaker halyard replacement replace the worn out leach reefing jammer on the boom with a better jammer or with a clutch clean bilges (after stern gland replacement) complete fitting the autopilot oil change and filters replace the stripper on the anchor winch and service the winch
  21. Wheels wins the Diagnosis at a Distance Prize, 2022. A pleasant time spent this arvo rowing out and back to Kevin's yacht confirmed the specific fault - non-returning armature in the engine kill solenoid. The armature and linkage move freely, just no return spring. All else is fine.
  22. there is waaaaay too much thought going into this. A series-wound DC motor draws maximum current at stall, and current drops in a non-linear curve as armature speed increases. If you open up a series-wound starter motor, you will see that the conductor inside is significantly smaller in cross section than the cables feeding it (unless the system was installed by a complete lunatic). Since its a series circuit, the resistance (or to be more precise, the impedance because the current draw changes in response to changes in the magnetic fields developed in the motor and they change with
  23. Length in mm, cm, m or handspans? 😉
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