| Re: BITZA F16
[Re: pepin]
#191731 09/23/09 06:14 AM 09/23/09 06:14 AM |
Joined: Jun 2001 Posts: 548 MERRITTISLAND, FL Matt M
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Posts: 548 MERRITTISLAND, FL | [...]Have a look at this photo and see if you can spot the mistake[...] The mistake is obviously the fact that Wayne is using a purple spinnaker... The mistake is that he forgot to put on a shirt | | | Re: BITZA F16
[Re: waynemarlow]
#191778 09/23/09 12:21 PM 09/23/09 12:21 PM |
Joined: Sep 2007 Posts: 571 Hamburg Smiths_Cat
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Posts: 571 Hamburg | Very beautiful. Now we can either rake the bow back, put a lot of carbon and reinforcing in the hull to take the increased loading or we can move the mounting point as far foward as possible by leaving the bow almost vertical, I choose the latter as unless you are doing about 30 knots the true wave piercing bows simply do not work. I do understand why we narrow down the top part of the hull but it has nothing to do with wave piercing. Would I do the same if I was building another boat, nah raked back bows just look so much more ubber cool Raked back bows looks cool now, but when the fashion trend is over, it looks as old school as a Dart 18. Seeing that you use your brain rather than following the trend makes the boat even more beautiful. With the A-cat mast (9m length?), what is the final weight? 85kg? Cheers, Klaus | | | Re: BITZA F16
[Re: Smiths_Cat]
#191785 09/23/09 02:14 PM 09/23/09 02:14 PM |
Joined: Sep 2005 Posts: 893 waynemarlow
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Posts: 893 | Very beautiful. Now we can either rake the bow back, put a lot of carbon and reinforcing in the hull to take the increased loading or we can move the mounting point as far foward as possible by leaving the bow almost vertical, I choose the latter as unless you are doing about 30 knots the true wave piercing bows simply do not work. I do understand why we narrow down the top part of the hull but it has nothing to do with wave piercing. Would I do the same if I was building another boat, nah raked back bows just look so much more ubber cool Raked back bows looks cool now, but when the fashion trend is over, it looks as old school as a Dart 18. Seeing that you use your brain rather than following the trend makes the boat even more beautiful. With the A-cat mast (9m length?), what is the final weight? 85kg? Cheers, Klaus Oh I like that, nice comment on the boat rather than the tacky clewsy bit, yes I did have the spinnaker back to front when first putting it on, wasn't thinking very straight after the cider offered for a liquid lunch by guess who. Talking of weight, I think the central beam has a lot of merit, it saves a lot of heavy components and if the forestay is added into the equation, it means a proper working jib and a screacher rather than the spinny we now use. The beam and front pole is only about 2 kilos at the moment so lighter than a conventional snuffer setup. Anyone out there good at converting loads to carbon fibre layup ? | | | Re: BITZA F16
[Re: waynemarlow]
#191792 09/23/09 04:24 PM 09/23/09 04:24 PM |
Joined: Jul 2007 Posts: 976 France pepin
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Posts: 976 France | Talking of weight, I think the central beam has a lot of merit, it saves a lot of heavy components and if the forestay is added into the equation, it means a proper working jib and a screacher rather than the spinny we now use. The beam and front pole is only about 2 kilos at the moment so lighter than a conventional snuffer setup. Anyone out there good at converting loads to carbon fibre layup ? Okay, now I'm lost. I don't see how the central beam is saving that much weight? Not to mention that you were probably the one who removed it from the 5.2 I have in my back garden when it was yours... What are the advantages of the central beam and under tramp snuffer? I can see the following: - Reduced weight and reduced windage on front, centering the mass is always good. - Self sustained pole is probably real nice™ when rigging, one less thing to attach around - Solid attachment for central sheeting (I'm curious to see how well it works as you still need to throw the extension on the back of the boat. I guess if it works for the A class, it can't be that bad) - Rigidity? Is it really helping? There are inconveniences probably: - Lower clearance under the trampoline, the central beam may slap in waves? - You have to either pick a side to launch the spi or forget about the jib completely and install split forestay. BTW, if split forestay are installed with no line from the mast to the middle of the pole aren't you afraid the pole is going to invert? How are you inducing pre-bend? - launching and snuffing the spi may take longer as well as you have to pull all the length of the pole... - You need extra long spi sheets to go all the way back to the trampoline Anyway it's really nice to see something really new for a change, and I must admit I'm curious to see the results. Can I get a ride? | | | Re: BITZA F16
[Re: Rolf_Nilsen]
#192148 09/28/09 05:57 AM 09/28/09 05:57 AM |
Joined: Jan 2009 Posts: 5,525 pgp
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Posts: 5,525 | Another tid-bit for Rolf. We discussed this boat some time back and now it's being readied for a new life! http://forums.sailinganarchy.com/index.php?showtopic=96734
Pete Pollard Blade 702
'When you have a lot of things to do, it's best to get your nap out of the way first.
| | | Re: BITZA F16
[Re: waynemarlow]
#193177 10/10/09 01:53 PM 10/10/09 01:53 PM |
Joined: Sep 2005 Posts: 893 waynemarlow
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Posts: 893 | Bitsa has finally gots its bits wet, had a first sail today in low winds and surprising not to much to tinker with. Quite pleased in a way as the boat is very much not far from final settings with an almost neutral helm and seems to be doing most things reasonably correctly. One thing for sure though you really need to be in the middle of the boat, as as soon as you get near the back you can stand the boat on its butt sinking the transoms really easily, mind you the Stealths do have a big wide fat bottom so you can't quite compare like for like. The Spinny under tramp snuffer seems pretty cool and as yet hasn't failed to work which is a surprise as its a quite different approach to things. I plan to sail again tomorrow and sorting out a few things so hopefully will get some on water time | | | Re: BITZA F16
[Re: waynemarlow]
#193265 10/12/09 02:33 PM 10/12/09 02:33 PM |
Joined: Jul 2005 Posts: 465 Oxford, UK pdwarren
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Posts: 465 Oxford, UK | looking out the window Sunday morning and seeing doom and gloom weather wise, meant a very instant decision of staying in bed for an extra hour or two of kip. I very nearly did exactly the same, but am very glad I didn't - you missed a great morning's sailing. Looking forward to seeing Bitza on the water. Paul | | | Re: BITZA F16
[Re: Rolf_Nilsen]
#193286 10/13/09 05:09 AM 10/13/09 05:09 AM |
Joined: Jan 2009 Posts: 5,525 pgp
Carpal Tunnel
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Carpal Tunnel
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Posts: 5,525 | Take a stroll over to SA. (scroll down a bit) http://www.sailinganarchy.com/index_page1.php
Pete Pollard Blade 702
'When you have a lot of things to do, it's best to get your nap out of the way first.
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