Does anybody have a comment on what they think about the following dimensions for a drifter on a 37C: Leach 41'8" Luff 44'0" Foot 27'8" LP 25'4"? I think the ideal is Luff: 46 Leach: 30 and Foot: a little less than 30. How much leeway do we have on sizing a drifter, and what is at stake if you go a little to big or small? Is there some sort of exponential decrease in performance relative to imprecision in sail size? If necessary I suppose I could get it cut, but I haven't bought it yet anyway. Thanks Josh
- Status
It depends...
If you are in REALLY light air, a big sail won't fly. So, how light is the air you want to sail in? I would think that if you can fly a spinnaker, a full 150% size light air sail would work. If it gets lighter than that, you might want to go a little smaller. I'd go talk to my favorite sailmaker. Let me know what you end up doing, would you? I'm kind of interested too.
If you are in REALLY light air, a big sail won't fly. So, how light is the air you want to sail in? I would think that if you can fly a spinnaker, a full 150% size light air sail would work. If it gets lighter than that, you might want to go a little smaller. I'd go talk to my favorite sailmaker. Let me know what you end up doing, would you? I'm kind of interested too.
Sailing in Light Air
Josh I am no expert on sails but I use a genaker/ Asymetrical Spinaker. I have included a picture of my boat with that sail up. You can see by the water there is little or no wind but we were moving as fast as 4 knots that day. I don't know the measurements of my sail but I would think the luff should be alittle shorter than the forestay and the rest of the dimensions would depend on how much sail area you wanted. I can measure my sail if it will help. John S/V Slainte 1983 H37C
Josh I am no expert on sails but I use a genaker/ Asymetrical Spinaker. I have included a picture of my boat with that sail up. You can see by the water there is little or no wind but we were moving as fast as 4 knots that day. I don't know the measurements of my sail but I would think the luff should be alittle shorter than the forestay and the rest of the dimensions would depend on how much sail area you wanted. I can measure my sail if it will help. John S/V Slainte 1983 H37C
Attachments
spin dimensions
The formula to determine the proper spinnaker size (according to PHRF-NE rules) is Luff/leech =.95*[sqrt(I^2+J^2)] and foot =1.8*J. These are for a symmetrical spinnaker. but I would imagine that it would be similar for an asymmetric except the leech would be longer than the luff.
The formula to determine the proper spinnaker size (according to PHRF-NE rules) is Luff/leech =.95*[sqrt(I^2+J^2)] and foot =1.8*J. These are for a symmetrical spinnaker. but I would imagine that it would be similar for an asymmetric except the leech would be longer than the luff.
tahnks guys
Thanks alot guys, I thought this post was going to go unaddressed. You've renewed my faith in the system. Josh
Thanks alot guys, I thought this post was going to go unaddressed. You've renewed my faith in the system. Josh
- Status