Wiki Sail by GRF

Someone back there clicked..

Taken to it's absolute humidity, wind with rain in it you will feel a whole lot more than wind without rain in it.

Why? Because the transmitted feel of the liquid is greater than that of air, get the sceintologists to explain it some other way by all means, but just the stinging sensation you feel on your face in wind driven rain should do it for you.

So, maybe, it's because with high moisture content there is extra drive from the moisture element, either way, you need a smaller sail than that given wind might be at the other end of the extreme when it's hot and sunny yet still the same windspeed.

That said, the transited performance doesn't seem to be any greater, no one appears to be going faster in wet wind than dry, it's just as I said right from the start, the feel is different which I accept you dont have to the same measure in a boat with fixed rigging so how would you be expected to know?

Originally posted by iGRF Someone back there clicked.. Taken to it's absolute humidity, wind with rain in it you will feel a whole lot more than wind without rain in it. Why? Because the transmitted feel of the liquid is greater than that of air, get the sceintologists to explain it some other way by all means, but just the stinging sensation you feel on your face in wind driven rain should do it for you. So, maybe, it's because with high moisture content there is extra drive from the moisture element, either way, you need a smaller sail than that given wind might be at the other end of the extreme when it's hot and sunny yet still the same windspeed. That said, the transited performance doesn't seem to be any greater, no one appears to be going faster in wet wind than dry, it's just as I said right from the start, the feel is different which I accept you dont have to the same measure in a boat with fixed rigging so how would you be expected to know?

Originally posted by maxibuddah I don't think about things like that when I'm sailing which is probably the reason why I beat you at the fom, grf. Stop worrying about it and get sailing

You only beat me because you shouted louder..

I'm bringing a loud hailer next time...

Originally posted by iGRF Touch & Feel are they the same thing? Er don't think so.. Feel I'm talking about is purely muscular, the amount of physical strength require to sheet in, feels different according to those temperature/humidity variations, so the force element of feel. But thanks for the red herring always a good sign after another argument won.

Parasitic Drag is a phrase we coined in windsurfing for the drag caused by the sail area over and above that which is required to propel us to optimum speed upwind, it started to become apparent in our world with the onset of floppy leech sails in the early eighties, that permitted the use of more canvass than you need upwind (but you got the PD effect) but then off wind they filled and it went away.

Maybe the term was used in dinghy sailing but tbh I wasn't around so wouldn't know, I imagine in other fields like ice yachting, having too big a sail would induce PD.

Anyway that's my understanding of the term and it's use, loosely having more sail area than you need and slowing down as a result.

Edited by iGRF - 04 Jun 13 at 10:47am