I have a couple of proposals: 1/ a) regarding the boomless sheeting, mike drummond said it, the forces are internal within the boat / rig, it is...
Mikko while I understand the implications of downwash and heeling moment point to the benefits of a pin-head sail, I think Square tops have a...
I'm not convinced it's of much benefit.. I tried a pocket sail on my skiff. While admittedly rough compared to this, it wasn't bad.. but produced...
Do you worry about the winch between your legs?!
That's what I thought.. but looking at the patent, it's all about the measurements of the idea. I imagine the novelty of this idea is pretty...
Interesting, seems to focus on foils parameters quite a lot...
PS Please appreciate how the foot of the jib is mostly in contact with the deck, and the leeward side of the jib follows the curve of the topsides...
I partly applied it... in that I now have a lever vang that is more structurally ideal and simpler rather than getting fancy with aero details....
Good question.. I've wondered the same. I don't think there's much in it really. There are skiffs with more rake and less rake that go just as...
force vectors for 27degree AWA
Here are some images. From memory, going 10 knots upwind in 15 knots breeze, 45 deg TWA / ~27 deg AWA The idea was to add an aerodynamic...
A friend of mine and I have looked in to this for the skiff. I don't have the details at hand, but in summary we decided that practically there...
Reducing disc loading means make the propellor bigger or reduce the power input, (assuming it's pitched correctly)
This video might help decide whether or not dinghy bows pierce waves.. sometimes you do sometimes you don't! fT83R8v8NhY This is more an...
Hi, A year or two ago I designed and built my own 12' skiff. Took a whole season to get her on pace. Keeping in mind you're building a Jav,...
"kg/m3 x m/s2 x m, which in turn yields N/m2" No, it doesn't, it gives you kg.m/s2, making the answer in Newtons.. surely. Unless you're missing...
Hi, I sail a 12' skiff (that I designed and built). Take a look at the 'Woof' hull design (google images - 'woof 12' skiff'), it would...
Thanks, I did a little bit of reading and thought Ncrit=3 would do, but will compare having it at 1 and/or tripping early as you say... I'm...
The H105 section is cambered.. iirc the 63 series sections stall fairly early, will do a comparison. The stall performance is needed at low Re....
Ha, thanks mr JRD! The trick to racing them is keeping your thinking cap on while on the edge of control, very entertaining! I've been going...