... From: Bryan L. Swinney ... Well, we do, and so did the Chinese long before us, long before it was patented by Edward Zaparka and long before it was...
Hi, The site and all information about "Bobber", Perry Phillips' 1969 British C-type West Wight Potter Junk Conversion, seems to have vanished from the Web. At...
... Perry announced that he would not be posting any more and then disappeared. He did not give a reason except I think that I recall that Bobber went up for...
Bernard, After going through all of the JunkRig postings, files, and photographs and reviewing the theory behind the Gurney Flap for a second time, I have come...
Interesting! Thank you for that description Bryan. AFAICT the flaps on the leeches of certain junkrig sails meet that description well - short flap chord, on...
... Brian et al (esp. Bernard): In what way are they different technologies? Or, more importantly, do you suppose that the benefits gained from a Gurney flap...
Simon, No one has expressed stronger reservations about the use of the Gurney Flap technology than I have, however, go back to review Mike's posting for...
... From: Bryan Swinney Sent: Tuesday, August 02, 2005 8:08 AM ... Several group members have already made suggestions to that effect in the past. For Robert...
... From: S Fishwick Sent: Monday, August 01, 2005 4:03 PM ... I already dealt with that in my answer to Bryan so I won't repeat all that here. ... You can...
... From: S Fishwick Sent: Monday, August 01, 2005 4:03 PM B.t.w. Simon, I have just joined the AYRS and ordered some publications at the same time. ...
Don, I have not researched spoon leaches, although I have seen photographs and read some chance comments on them. My comments are thus subject to revision by...
Don, I neglected to fully respond to your questions. I have no way of comparing the performance of the spooned leach to the Gurney flap. As to the adoption of...
... the ... (I'm ... entertain ... individual ... best ... of ... a ... the ... battens. ... Several points concerning this and other recent posts. First, the...
I understand "quilting" to describe the wind induced curvature of the sail between battens. From memory I think in "Junk Rig" it was stated that "moderate...
The last issue of Catalyst the AYRS magazine has a very informative article on kites if you are interested. Worth the cost of a back issue. Wally Paine ... ...
... From: Bryan Swinney Sent: Tuesday, August 02, 2005 11:33 PM ... The term 'spoon leech' originated in this group. If I remember correctly it was De Clark...
... From: Mike Mulcahy Sent: Wednesday, August 03, 2005 5:02 AM ... So in stronger winds your flap takes up a spoon shape. That means that the chord of its...
... Mike (and Bryan): The reason to use double sheets is to maximize sail area. You do not need the large amount of open space behind a sail for sheets that...
... the ... mean less ... windspeed, as ... This is where the analogy between a Gurney flap on a race car and one on sail no longer apply. First, with a sail...
... From: Kent ... I read it in 'The last sailors' by Hollander and Mertes. On page 110 they wrote: The Chinese claim it resembles a human ear that is "always...
Mike, Thanks for the clarification and the detailed observations. Have you given any thought to gluing or taping some short battens to the flap? The battens...
Don, Now that makes sense. You use one set of sheets on one tack and the other set on the opposite tack. I don't believe that I have noticed any photographs...
Nels, Valid observations. In a practical sense, it would appear that the handling of a soft 5% flap would be somewhat easier than attempting the use of a...
... Bryan: Double-sheets were not common in China, but they were used occasionally. Chinese working craft were not typically sailed short-handed and there was...
... short ... sets ... flap ... not ... you ... in ... sheets 2-3 ... because ... existence of ... worth ... After I made the post I got to thinking that what...
... the ... Mike ... reduces ... accomplishes ... the ... side, ... the ... I think it would be hard to make a 1% flap which would not deform itself out of...
To Everyone In General, Perhaps this is a foolish question that someone can dismiss easily. If the idea behind the spoon leach is to provide additional...
