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Groucho Marx

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Everything posted by Groucho Marx

  1. Old cat Supplejack nostalgia: launching Little Shoal bay,1977, Bay of Islands race, first sail, getting used to the high speed, Cape Brett, Bay of Islands entrance, a siren on Suppleack.
  2. In that photograph of Skipjack on the islet rocks off Kawau Island, taken the following morning after collision, (I was also in that night race singlehanding on my 32 foot catamaran Supplejack, which came in 3rd or 4th if I remember correctly) and crewed Skipjack and solo crewed Supplejack went through the passage at similar times and I remember having to carefully pinch the cat, which had a wing mast so was close winded, past the reef gap and I think what happened to the Kraken is that they cut it too fine, got into irons and got washed onto the savage metal shore. Which quickly tore the bott
  3. https://www.boatdesign.net/threads/historical-multihulls.42019/page-83#post-778728 There is a photograph of altered Manu Puru on the above page.
  4. There's a Kraken 33, meaner than a B33, over at Little Shoal Bay. But it has been totally messed up with built on house of flats and other defecation - but originally it was a famous Auckland race trimaran named Manu Puru. Since what has been done to it is beyond a disgrace, the price has to be very low. However again, chainsaw and other tools and time would be required to return the design to original. I used to race against a yellow B33 in Auckland named Legato, owned then by an opera singer, was a good boat but think it was lost somewhere. Useless information for you. There are other
  5. You could easily simplify your dream by turning it into a single beam platform with small floats, wider beam and fixed foils, either inverted T's or L's or angled asymmetrical daggers. Boat will automatically be light because you've got rid of one beam and long floats.
  6. Or any multihull. On Misguided Angel (the double wing mast rigged tri foiler) you only needed to head up a few degrees when true apparent wind reaching, to stop airflow backing on the leeward rig. With two proportionately lower two rigs compared to conventional sloop, there was almost an excess of power once sheets were eased, boat was very fast and stayed level. Very different to tall conventionally rigged boats. I've also played around with a double rig (but fore and aft) on a light skimming dish monohull, see photograph. The big advantage as all the enthusiasts here know, is that
  7. Years ago I experimented with a bi-plane rig on a single beam, foil assist trimaran; it was very fast reaching but I had trouble sheeting down the two mains when beating, too much fall off on the leeches. But on a conventional two beam trimaran platform (or a catamaran) that problem disappears - because of sheeting down onto the solid after beam base (or the two cat hulls). I tried a number of differing boom setups but never had success so changed later to conventional single mast on main hull.
  8. Dragged Cox's Bay Skimmer out at high tide and parked it on terrace; has been used only a few times lately and was just gathering sea growth. Tried to give it away but no interest, hence the park up.
  9. Frog's double leech mains move this far, no adjustments needed, slides on their own and attached only at the clews. The boom at clew is very slim, all carbon - because original snapped like a dry biscuit.
  10. Frog and traditional gaff rigged 22 foot Mullet boat Melita at Motions Creek. Closer shot of Frog.
  11. Couple of shots taken by Jacques at Motions Creek (no pun meant) a couple of days before the harbour (and most everything else here) was closed. The rig is way too small, almost embarrassing, hence the headsail talk.
  12. Groucho's rig is quite tall at 15.5 metres (on a 11.3 m platform) but Frog's D mast (for the experimental double luff mains) is only 8.8m (on a 7.2 metre long hull) and in light airs Frog's performance is not nose bleeding stuff. And yesterday was beaten in light winds by a vintage Armstrong tri with decent roached main and new large jib/genoa - and crewed by two stroppy women. Which definitely got my attention. So enough of this una rig fixation I've had for many years, bite bullet and order a flat light weather headsail from sailmaker Bill Barry. Having said that in winds above 6 knots Frog
  13. Steinlager's very large chord wing mast never rotated correctly; there was some Michael Mouse thinking involved because it couldn't rotate beyond 30-35 degrees either side (okay for beating close reaching, as in photograph) - but dangerous and incorrect aerodynamically in anything with wind aft of that -- and hence the problems with mast overpowering. Steinlager's side stays at the hounds attached to the wing mast sides and were not connected correctly at the leading edge. This was a well known mistake even in those times and asking for trouble. Wing masts need to rotate to 80 degrees or more
  14. Delightful and subtle humour; I'm sure Hunter would be impressed?
  15. Got Groucho's mast up a week or so ago, a few more small jobs and then sailing. Weather down here in the Southern Antipodes has been scorching hot - but not as incinerating as over the ditch with our Aussie neighbours.
  16. I wanted flat but sailmaker Bill Barry disagreed and played around with the top areas with a slight luff curve - but to me. looks dead flat. You can vary fullness/flatness by playing with mast spanner rotation. Well, that's what I tell myself.
  17. All quiet on western front, ..... so far. Have completed fitting all the running rigging, new blocks and so on. Here's an early photograph of Sid's D mast with Eric Eason adding scale. The long spanner has been reduced because it blocked deck hatch entrance.
  18. Well, it's not quite ready, have to connect runners, fit the rudder and so on. Because the boat has inverted T rudder, have to swim it in from the case bottom. But you are right, why didn't I think of that, offer the angry woman a harbour sail.
  19. Lifted Groucho's mast a couple of days ago, working carefully on my own using block and tackle high up in a pohutukawa tree; a natural gantry. (I back the boat under it at high tide) anyway the wing mast, now painted mostly light gray with a discrete yellow stripe, is 15.5 metres tall, over 50 odd feet. Today a close to irate woman (with bright red dyed hair) shouted down at me from the high terrace above the bay then came down the steps threatening to lower the mast because it upset her elderly mother from the above terrace house. I pointed out the mast was nowhere near as tall as a hu
  20. I haven't accurately weighed the double main, just guessed but having sailed today and then rolled them up, I believe the two of them including full length battens are only fractionally above the usual heavier cloth single main. maybe even lighter. Bill Barry did a nice job light building them and his pricing was very, very reasonable. Maybe because it was experimental and he knew he was dealing with someone crazy; this was a year before the AC75s with their very special sail rigs appeared.
  21. The clew attachments on Frog are very basic, just a couple of lines around the thin section of the boom. There is enough slackness to allow enough push/pull movement between the two sails. Works okay. Could be more sophisticated, as on larger boats but Frog is small so I get away with it being simple. Each sail is of lighter material than a single setup but the two together weigh maybe 20% more, have to live with that. What you gain from the D mast and the two sails curving off from the tracks is a very smooth transition mast/sail, an aerodynamic wing shape, superior to normal wing mast, soft
  22. Bill Barry designed and built it/them - because they are two separate and identical mains which are not joined except at the two clew positions. The leeches touch but have no attachments and are free to move depending on mast rotation.
  23. Light airs at first on Frog, then breeze shut off and than came back from east with some power; Frog took off - but too busy to take photographs. D mast with double luff main. Tiny floats; am used to them now but early sailing was apprehensive.
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