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BNG

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Posts posted by BNG

    Tutukaka Coast

    in MarineTalk

    Posted

    The other thing to consider is that your average land lubbers view of what is a lovely bay to anchor in is usually the polar opposite of reality.

     

    Just anchor out in front of our bach! Yeah right.

    • Upvote 1

    Teak

    in TechTalk

    Posted

    What Native said, re-groove and get new straight sharp edges and lines and a greater area of bonding.

     

    When using sharp tools make sure you work with the grain of the timber or you will dig holes to hell.

    Altex Fail

    in MarineTalk

    Posted

    Whats the substrate of the hull below the waterline? Glass? Racing smooth or a bit of cruising texture...?

     

    If its too rough (and it doesn't take much) it gives the little buggers the ability to get a 'mechanical hold' like a climbers fingers in a hole.

     

    I have had a superb run out of #5 and look after a couple of +65 foot displacement launches on it that are also getting 2-3 years also so I'm kinda surprised.

    Altex Fail

    in MarineTalk

    Posted

    3 coats sprayed October 2016. First wipe by divers last month and still mint 21 months later....

     

    Going to delay haul-out til Autumn 2019 on that basis. Boat gets used a lot and lives at Westhaven.

     

    Pretty much the same experience as I had 2014 - 2016 so why the wildly different results?

     

    I know Opua is bad for barnacles perhaps Lyttelton as well?

    Holding tank Gasket?

    in TechTalk

    Posted

    Make sure your port cover has as much overlap as possible so the MS 'Gasket' has as much area as possible to bond.... more is better. Also tighten it down lightly so you don't squeeze the sealant out, tidy up and come back and nip up the fastenings a fraction after 24 hours.

    Sub tropical low ?

    in MarineTalk

    Posted

    That was interesting thanks for the link lateral. I was trying to recall that one and couldn't but then I realised I was working in Northern China in 1994 so completely missed it. Time flies..

    I thought a STL was a tropical cyclone that moved from the tropics to sub-tropics and lost intensity as opposed one that formed in

    in the upper tasman & got stonger as it moved south.

    Guess I'm wrong. 

    The "bomb" in 1994 didn't originate as a named TC and had that ideal "window" look off the front of the high a  day or two  before. Turned real nasty.

    http://setsail.com/wp-content/uploads/2009/04/mwh_queens_bday_storm.pdf

    Launch Sunk

    in MarineTalk

    Posted

    There is a largish 45+ foot ketch with lattice steel masts also sunk in Hobson Bay after the other night.

     

    Been there a few days rocket launcher and masts the only thing visible. Sad to see.

    Shane strikes again

    in MarineTalk

    Posted

    Well he didn't have to double space his forum posts to be understood so there is that :)

     

    Ive often wondered about that

     

    its kinda like reading poetry

     

    but without the rhyming

     

    or any punctuation

     

    makes the posts and resulting threads 

     

    really long

     

    without any real need

     

     

    I could easily make

     

    this post 

     

    half a page

     

    and waste more space

    Yachtie Fined By MNZ

    in MarineTalk

    Posted

    Of course I can't race offshore as my designer is no longer available to produce a gz curve.

     

     

    We calculated the GZ curve for Black Fun around 2003/4. Didn't have plans so scaled Waveriders plans with a bit of a nip and tuck to fit and computer modeled that with the 2m fin keel and 220kg bulb she had.

     

    With the addition of a port/starboard/fore/aft inclination test with 5 graduated weights that gave us the data to verify what we had modeled.

     

    Do you have plans..? Know any good Naval Architects?

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