thanks, made some already from the class published offsets. Didn't cost $100 either. A local builder is laying up a new rudder to the 'official'...
thanks, I'll check that out.
Hi Cliff; a really quick and dirty way would be to download the foils97 demo from vacanti software and plug your foil section and overall...
Indeed; I would not be class compliant, but thats not an issue around here. PHRF is another story, I've not been able to get any real answer from...
I'm measuring from the waterline down: 50 inches, on a 14.5 inch chord. Heres the (interpolated) data from loft97 @3 degrees leeway, 5 knots...
very nice ! If I'm thinking about the chart properly the 2:1 aspect rudders are stalling earlier but providing more lift (or a higher l:d anyway)...
Hi; Thanks for the spreadsheet, came through fine. I'll have a look at it. I can usually top out at about 6.2 knots upwind, and haven't gone...
Possibly so, I'm new to this and trying to get a handle on things for comparison. Its a 3800lb, 27 ft keel boat. What AOA regime would be most...
I'm looking at comparisons between a Naca 0015 (existing rudder) vs a 63010 (proposed replacement) foil for a transom hung rudder on a smallish...
Naca63015 That does look alot more like the actual offsets. thanks.
Hi; I recently broke the 22 yr old rudder on my j/27 and am considering some options for replacement. When looking at the offsets, they are...
