If it bends under compression a wire down the pipe will make it worse rather than better. What might help would be longish spreaders half way up...
You're a fair bit outside my experience zone, but 1 inch tube for the mast doesn't sound very big. Keep a very good watch on it in early testing...
The class assn plans price will include class registration and designers royalties, the vintage ones neither. If you don't want to register a...
It all depends what you want them to do. Pivoting spreaders tend to restrain a mast sideways with very little limitation on fore and aft bend,...
You can way overthink this stuff. Find the class rules on line for a successful class of essentially similar size, and use their dimensions....
I'm not sure you can look at the rigs in isolation from the hulls. There's been a general tendency for boats to get more and more wedge shaped...
Its worth noting that in practice the efficiency gains from a rotating rig do not seem to be very great. There was a great enthusiasm for them...
So, if I understand you correctly, you have a good set of sails well cut for the mast set up as on the monohull, ie fixed, and so you want to...
Think you've done a good job of highlighting the issues and problems with the various solutions. And yes, really this is why in the end folk have...
Can't help you with your sums, I tend to just say X has about the right amount of rag, I'll have little bit more/little bit less. But I dunno,...
The top batten isn't that special or extreme angled I don't think, and typically at a very much shallower angle than you've drawn. The next batten...
Reckon that's about right Chris. Increasing roach at the top of the sail has been a general trend for decades really. Most of the development...
12 foot displacement boat - 200 mile races - you'd be out there all year wouldn't you?
The biggest argument against rectangular spars on a recreational boat, to my mind, is that the corners are so vulnerable to damage. A round spar...
This is exactly the sort of thing I meant. Rob Denny makes a list of factors that could very well influence sailors to pick a less efficient rig...
Note that the Brabazon Redwing was an autogiro, not a turbine/propellor boat. That means it sailed "conventionally" and couldn't, unlike the...
Perhaps a bigger mystery is why folk who, for whatever reason, favour a radically different rig for recreational craft, feel the need to make a...
In power per square foot terms, jib overlap is probably the least efficient way to get extra power out of a rig. On the other hand if you're...
As you're obviously comfortable with exotics this needn't be too onerous. You can work out approx section sizes and wall thicknesses from various...
Completely in agreement with Chris: not humanly possible to react to gust onslaught fast enough, especially in a small boat with presumably very...
