Mikko, It is a small world. I may be wrong on my exact dates- it was a long time ago. I know the story because in 1979 I started sailing with...
Here is my take on why there is such a discrepancy between the theory and the practice in sail cambers. Why do sailors use deep sails? Sailors...
Mikko, here is a story to illustrate why I am sometimes sceptical of the "eye a champion" when it comes to sail development. When the 470 class...
Mikko, I wouldnt have any problem hitting the camber values. Once I have worked out what I need. I know how all the controls affect the sail...
Tom, I agree re your comments on sail designers. They dont operate by knowing what they want in terms of camber and draft and then design the...
Petros, books on Sail Aerodynamics - I've got the lot ranging from the first book written in 1928 ( got on e-bay for £5 !) by Dr. manfred Currey,...
Petros, yes I go along with a lot of what you say. I think that very good sailors (olmypic level) end up with a very good understanding of what is...
Yes, luckily for me the boats I sail are dinghies and they should not be heeling ( not to say that they don't but that is just my bad sailing...
Mikko, thanks for the numbers on the 49er. It is as I had thought a camber of 7%. I would surprised if they sailed with any more than 12% camber...
OK some boats have higher resistance hull forms than other, but for all boats shurley you need to maximise the drive from the sails. By drive I...
Where I am coming from on this is that each type of boat may require a different sail camber in 10 knots of wind. However I am suspicious of this,...
Thanks- yes I realise that the sail controls will affect the camber for example by app Lication of the cunningham and vang I can reduce the camber...
I would have thought that the flying shape of the sails should be the same, whether they are made from dacron or mylar. I would accept that...
Is this related to boat speed? Slow boats generally point lower thus the rigs operate at larger angles of attack, therefore they can tolerate a...
The sails could be mylar laminates or dacron it doesn't really matter. I have measured cambers by a string and tape measure, but I have also...
I have been reading some of the books published on sail aerodynamics to try to get a better understanding on sail camber. They all say that the...
Thanks for the input. Interesting about the comment on sinking down into the wave pattern at speed sounds spot on. The boat is a "performance...
I have a 44" sailboat that has a distinct stern down trim problem, this is only apparent when sailing, not at rest, and seems to get worse the...
