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Everything posted by MrWolf

  1. The centreline doesn't move. if the amas are symmetrical then it is the line about which the other side is a mirror image.
  2. Hi Gary that does make sense. But these beasties are not sailed at the same angle all the time, even though we try ! To your other question I willl have a mould for the amas available after construction is complete.
  3. so since your boat will be heeled over 15 degrees when the main hull lifts out (assuming min of 6 inches of chop) then your ama will be over 10 degrees away from your stated ideal of perpendicular... this makes no sense to me you just contradicted yourself? Lucifer has 10 degrees, im thinking of around 7 to compromise between light airs/downwind and heavy airs/ hull flying Capricorn has 5 degrees and it worked well in the light stuff and downwind but not so good in the breeze. I would have a agreed with the CLs lining up, i.e no toe in at bow when looking in plan view. Sam whe
  4. Thanks for that. Part of the never end search for sponsorship, costs a lot to run a programme like this..... the basic hull laminate is 200 gm Carbon Cloth Inside laminate at 45 degrees, 80 kg density foam, and 500 gm laminate outside, at 0/90. There is additional laminate in the way of bulkheads and the foil case.
  5. A lot of cored boats require longitudinal girders beside the keel floors as well. Then that along with the bulkheads and ring frames are all glassed in. Keep an eye on the Timberwolf thread as all the frames are going in as we speak !
  6. Take a look at the Timberwolf thread in multi talk it has a very good picture demo of how to build a Foam cored hull in a female batten mould. Cedar core is built over temporary frames. Each plank is glued to the next and runs lengthways. Once the cedar is strip planked, the outside of the cedar is faired (planed and sanded) and then glassed over. The hull is then flipped, faired inside, then glassed. The Cedar is strong in itself, but the Glass either side makes it much stronger again. with this method you do not need stringers. The bulkheads are then glassed into the hull. Most
  7. Just got the laminate over the chainplate pin finished and have biffed the two chainplate bulkheads in the autoclave. Hopefully it will behave itself in there tonight. The chainplates themselves are 3.3mm thick carbon laminate and only 100mm wide and 200mm long and good for well over 10 tonnes. Its great stuff this Carbon !
  8. So far as the Toe out is concerned, if the ama bow is perpindicular to the water just as the main hull lifts out I would say that is about right. we are going for 5 degrees of angle out on the ama. the ackerman thing as far as the amas are concerned is a new one on me. I just thought you made the three centrelines parallel. I am very interested to find out if this is not the case.
  9. Ross 930's with a loy of rake like the photo have been tried years ago, and in fact was quite common in the mid 80's. As expected it was not too flash downwind. It was also in the days of pin head mains with short battens. Once you go to more roach/full battens you should expect if anything, the Centre of effort is going to move aft. all other things being equal that would generally lead you to less rake than with the old style rigs.
  10. looks a lot lighter than Timberwolf too, look out Tim!!!! JT has done a beautiful job its a credit to him, im proud to own a closely related nearly finished Tri! We are actually intending to bring Wolfie up to Weiti to have the occassional race against the "Up north boats", and am looking forward to racing against JT. What we lose against him by being heavier, we may gain by having more sail area and being longer.
  11. You weren't kidding ! That is a lot of rake ! way more than was "originally intended" by Murray Ross. I would have thought you would get weather helm upwind in medium conditions and be slow downhill. But if as you say you aren't either on that front it would be a bit of a mystery as to why that might be. Can't say I can recall seeing another 930 with that much rake ??? Who set it up for you ?
  12. For what its worth the Matrix Masts starting rake is 420mm or 2.5 to 3 degrees
  13. With the mistake in times Racetrack has Taeping on 1.8498 less than two percent off the Mighty "Go the Vodafone Warriors' G3. So while painting your boat a different colour doesn't change your handicap.... Doing a whole load of work to your rig and stiffening it right up, as well as fixing leaking windows, Does
  14. Really great job JT. Looks very slippery and it looks a lot lighter than Lucifer. Look out Laurie !
  15. Biggest issue we used to have when the Wolf was white in the Simrad was that other boats simply didn't see us coming. Had a particular race beating up through Motuihe passage where we had 5 or 6 pretty close calls. Since the boat has been Green that issue has totally gone away.
  16. Yes I am hoping this thread will be useful in offering lots of little tips and ideas along the way.
  17. I think for a front tramp the farrari is too tightly woven i.e. it doesn't let the water out fast enough, the Farrari is better suited to the main tramp. the open dynex stuff stays nice and tight but lets the water straight out (especially important when sniffing). It also gives better grip, also a good thing on the bow of a gbe!
  18. Main thing is it needs to stand out ! Not another boring white boat, eh Samin.
  19. Optimum weight is still around 80 kg though.
  20. when Matt Mitchell had your boat and set it up he was never over 75kg. And the Wing on your boat (the first we ever built) is also the softest.
  21. The Top photo is showing all the waste we have had to date. Very Very little. Bulkheads came out a lot better this time. Little corner pieces are to do with the way the two shell halves are blind joined. will become clearer once laminated.
  22. the stuff to use is made in nelson out of dynex. the guy makes fishing nets, has just done new tramps for frantic and taeping. i'm going to get some too. Dave Andrews has the guys contact details
  23. At 83 kg I was too heavy to be totally competitive in all conditions. That being said I got 2x 2nds a 3rd and a 4th in the Nationals at that weight. In those 4 years the Nationals were won by skippers weighing 65kg, 70kg and 72 kg. at around 65kg John Clinton was still quite fast in a breeze but totally devastating offwind in all conditions.
  24. Oh what a shame. I had thought all that hard work had really paid off in a massive way looking at the results !
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