| Re: A cats and carbon
[Re: fin.]
#66883 02/15/06 02:56 PM 02/15/06 02:56 PM |
Joined: May 2003 Posts: 4,451 West coast of Norway Rolf_Nilsen
Carpal Tunnel
|
Carpal Tunnel
Joined: May 2003
Posts: 4,451 West coast of Norway | What design would that be? Pure ply or ply+carbon? Just curious.. If you dont really want to build a boat but are thinking about it to save some money, dont build! Buy a used one (go to the bank, sell something or take an extra job to finance it) and go sailing instead. Look at this one, not min. weight, but still.. E-baySpeaking about A's. Anybody know what competitive crew weights are? Is there more information about this A-cat? http://www.ashbysails.com/boats.html
Last edited by Rolf_Nilsen; 02/15/06 03:02 PM.
| | | Re: A cats and carbon
[Re: Rolf_Nilsen]
#66885 02/15/06 03:05 PM 02/15/06 03:05 PM | Anonymous
Unregistered
| Anonymous
Unregistered | Pete: Pete Melvin suggested I get Bob Hall to make me a spar based on my weight and sailmaker choice and have it sent to Performance Cat before they build A2. I am going with a Glaser sail because they won 6 out of 8 of the last N/A's and the Worlds. Here is a site for some A cat trailer ideas. http://www.acatsnw.com/trailer/trailers.html I think I will get a Trailex double stack so I can mount A cat on when I want to take both 17 and A cat. Doug | | | Re: Mast lowering
[Re: bvining]
#66886 02/15/06 03:09 PM 02/15/06 03:09 PM |
Joined: Sep 2001 Posts: 254 Gower, Wales, UK sailwave
enthusiast
|
enthusiast
Joined: Sep 2001
Posts: 254 Gower, Wales, UK | Hi Bill, > it looks like carbin inside skin, corecell foam > and kevlar outside skin, with gelcoat. Ta, you just saved me from smashing one of the hulls to find out; vinylester resin too according to the web site... So, thus armed with such technical knowledge I expect to go a lot faster on Sunday... | | | Re: A cats and carbon
[Re: sailwave]
#66889 02/15/06 04:38 PM 02/15/06 04:38 PM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
Carpal Tunnel
|
Carpal Tunnel
Joined: Jun 2001
Posts: 9,582 North-West Europe |
For some tricks stabilizing your mast in a blow go and do a search on the F16 forum. We've covered this topic several times overthere.
We all keep our masts up overhere on the beach, for 6 months without exception. F16's and A's
Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: Mast lowering
[Re: sailwave]
#66890 02/15/06 04:45 PM 02/15/06 04:45 PM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
Carpal Tunnel
|
Carpal Tunnel
Joined: Jun 2001
Posts: 9,582 North-West Europe |
AHPC late 2005 ?
Most probably a full kevlar laminate hull.
Bill was looking at an older hull
Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: A cats and carbon
[Re: bvining]
#66892 02/15/06 07:25 PM 02/15/06 07:25 PM | Anonymous
Unregistered
| Anonymous
Unregistered | Pete:
If you decide to get a A2, Pete Melvin suggested I contact Ben Hall and have him make a spar based on my weight and sailmaker and have it sent to Performance Cat before boat was put together and add any extra support needed for a spinnaker.
Doug | | | Re: A cats and carbon
[Re: sailwave]
#66893 02/15/06 08:37 PM 02/15/06 08:37 PM |
Joined: Oct 2001 Posts: 395 LA Acat230
enthusiast
|
enthusiast
Joined: Oct 2001
Posts: 395 LA | Colin's new Flyer is beautiful. It looks like he got it with the glued beam option and the execution of that looks quite good. AHPC, A2, and Bimare are vinylester boats. Vinylester is stronger than polyester, a bit weaker than epoxy (but less toxic than epoxy). I think AHPC is using Nomex core based on the skin imprint I saw on my Mk. V but it may have been different for the Flyer. Marstrom and A2 both currently use Nomex. I think first Flyers built by AHPC were all carbon but their website now lists construction as carbon and kevlar. My guess is Greg Goodall is now using an outer kevlar skin for impact resistance and inner carbon skin for stiffness and strength. My previous Mk. V was all Kevlar construction and had more more bulkheads than the Flyer (which has only 2). I don't think it gave away anything in platform stiffness. Marstrom platform (epoxy pre-preg, Nomex core, autoclave cure) is probably the strongest construction. Others are vacuum bagged with the resin infusion system used on the A2. Many have thought the best competitive weight range for the A-cat is 160-185 lbs but I've seen light sailors like Pease Glaser finish quite well in 14-16 knots of wind and bigger sailors like Woody Cope and Doug Graf finish quite well in light air. It's still about time in the boat and getting your rig and sail trim numbers right no matter what the platform. All of the recent platforms including the A2, Marstrom, Flyer, XJ, Auscat Mk. V, and Auscat Mk. IV are capable of winning races which is a good thing for the class. We don't see any significant performance improvements in hull design in the near future. We think more performance evolution (that will be subtle at best) will continue with sail planforms and foil plans and shapes. If you get into the class and want to win races, you still have to get out and sail the boat and sail the boat a lot . Bob Hodges A2 USA 230 | | | Re: A cats and carbon
[Re: Acat230]
#66895 02/15/06 08:56 PM 02/15/06 08:56 PM | Anonymous
Unregistered
| Anonymous
Unregistered | Bob:
Was nice meeting you this weekend. Yea I can't wait to get the A2 and get time on the water. Hope to see you at Deep South, if not maybe Wayward winds.
Doug Snell | | | Re: A cats and carbon
[Re: Acat230]
#66897 02/16/06 06:26 AM 02/16/06 06:26 AM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
Carpal Tunnel
|
Carpal Tunnel
Joined: Jun 2001
Posts: 9,582 North-West Europe | Here some updates : I think first Flyers built by AHPC were all carbon but their website now lists construction as carbon and kevlar. My guess is Greg Goodall is now using an outer kevlar skin for impact resistance and inner carbon skin for stiffness and strength.
Full kevlar hulls are produced significantly more lately. There are various reasons for that. That is all I can say at this moment. Marstrom platform (epoxy pre-preg, Nomex core, autoclave cure) is probably the strongest construction. Others are vacuum bagged with the resin infusion system used on the A2.
AHPC has been using infusion for a while now. Nacra makes a big fuss about their boats being the first to use resin infusion (especially with the F18 infusion) but they are just wrong. Several other were already using this methode even in the F18 class. WOuter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: A cats and carbon
[Re: fin.]
#66898 02/16/06 09:39 AM 02/16/06 09:39 AM |
Joined: Feb 2004 Posts: 285 Catfan
enthusiast
|
enthusiast
Joined: Feb 2004
Posts: 285 | Pete BIMARE sails are made by "Bim sail", the internal sail-loft of BIMARE. Differently from other catamaran builders such as Hobie Cat, which have sails made by "external" sailmakers with their logo, BIMARE has been producing for over 30 years all the mainsails and asymmetrics which fit its range of unirigged boats "in house". Have a look at: http://www.bimare.net/saile.htmThe development of Bim sails is carried out by Valerio Petrucci, the elder son of BIMARE founder, and other top notch Italian A catters. Moreover let me add that they are not too bad: in 2005 they got a 6th at the A Class Worlds, a 1st at the Italian National, a 3rd at the German Nationals..... | | |
|
0 registered members (),
302
guests, and 130
spiders. | Key: Admin,
Global Mod,
Mod | | Forums26 Topics22,405 Posts267,057 Members8,150 | Most Online2,167 Dec 19th, 2022 | | |