Referring to the Fred Ball article in Jan 2007 Catalyst and "What use is it to yachtperson?" How about means to control a yacht in very high winds which result...
Ian It is years since I last looked up the theory of Flettner Rotors, so I hope someone will correct me if I am wrong here. I think that if you speed up the...
I would have thought that a two rotor vessel with a thin rotor rotating at high speed would point into wind better then a soft or hard sail and with a low drag...
Hi Rob, You know as well as I do Robert, good windward pointing ability depends on having high lift to drag ratios for both the air immersed and the water...
During the AYRS 2007 AGM meeting in Jan, it was wholeheartedly agreed that 'we' should bring the Society's means of communication 'kicking and screaming' into...
http://www.bbc.co.uk/mediaselector/check/player/nol/newsid_6360000/newsid_6368300?redirect=6368321.stm&news=1&nbwm=1&bbwm=1&nbram=1&bbram=1 [You may need to...
This boat is right here in SF Bay; was designed by a mate of mine, Jim Antrim--lots of sailcraft design experience. Nobody quite knows why the owner (who did...
For those who still aren't satisfied: AYRSer's may not be familiar with BoingBoing; "A directory of wonderful things." www.boingboing.net. Great internet blog;...
Hi Bill, In general: Thank you for taking on this task! I will support you, in any way I am able, in *whatever* route you choose to take on this one. All of ...
Bill Anything to promote Weymouth Speed Week and meaningful testing at Speed Week would be good. The prototype timing is looking very promising! Robert ... ...
Dave, Thanks for that good input and encouragement. I don't claim any special expertise. But I am confident that asking our community-at-large for ideas will...
... Certainly the site could do with modernisation. BUT, *somebody has to do it*, the present site seems up to date, and it is easy to waste a lot of time on...
Theo People are interested in AYRS info, especially Catalyst, at least myself :), provided information is easy available as compared to postage. I mean free...
My thoughts: 1. I generally agree with most if not all that has been said by others so far. 2. Problem: As Simon has pointed out, how to retain financial ...
Thanks to each and all, so far. Just to re-iterate, I don't have a specific 'axe to grind' or agenda. It's ideas and perspectives that are sought. Should an...
All I am researching VMGs both up wind and down wind relative to wind speeds for various state of the art sail craft. The best data I have so far found are...
IFS sells a book containing hundreds of polars (600?) for most popular sailing classes. I've heard some criticism regarding their accuracy, but always...
Giles, You might check with Ken and Alec at Velocitek (www.velocitekspeed.com). A couple of smart young nerds with degrees from Stanford and Texas, now living...
I have been talking to Slieve about double luffed junk sails similar to large wing masts, but made of fabric which can be lowered and/or reefed. In some of the...
... It's a bit strange the way he plots Vmg vs point of sail - this is a rather meaningless presentation. For example, upwind/downwind Vmg is always zero for...
Dear AYRS Email-group, While we are discussing how to improve the AYRS presence on the WWW, email netiquette is slipping again. Please check that your mail...
... Perhaps go here: http://www.junkrigs.com Joddy Chapman (son of the late George Chapman) is a member of that group and worked on the research you mention...
... Thank you Tom, I hadn't actually SEEN the shaded areas! (I was looking at it at night with the room lights on) It's a pity he didn't normalise it for...
There is a French guy, called Bertrand Fercot, that is a member of the Junkrig yahoo group and the Junkrig Association, that has built a number of Wharram cats...
... about the old commmercial hovercraft no longer in service. Does anyone know if they still exist (apart from in museums) and if so where? Simon suggested...
Wonderful to hear you're an expert on these craft, Percy. CAn you tell me, please, and in your opinion, why these craft have been phased out in so many places?...
