Sloop and Yawl
It is not easy to decide on the right position of the (geometrical) CE in relation to CLR (‘CLP’), in particular not on a vessel that I am not familiar with.
Position of the main mast.
The original mast has 20% of its waterline in front of that mast. Frederik is considering moving the mast aft to the 25% position (the yellow one). I have my doubts about the need for that. My own Ingeborg has only 15% waterline forward of the mast, and the successful Cornish Pilot 30, Annie, got rigged with the solid wooden mast sitting only 12.7% aft of the bow.
Anyway, I remodelled the top section on my AR=2.05 master sail and scaled it up until the battens became 5.90m. This was hung on both the ‘new’ yellow mast (25% position) and later on the original mast and position.
In the first case, the CE ended far enough aft to probably work well enough as a sloop rig, without that mizzen.
In the second case, I hope the mainsail will result in a bit lee helm, which the mizzen is meant to balance out. Note how far the CE moves aft with the mizzen kicking in. The mainsail could probably be moved a bit further forward, partly by making the mast plumb, and partly by shifting the halyard’s slingpoint aft to 10% behind the middle of the yard.
The mizzen.
Frankly, I think the shown version would be awkward to operate with those battens. I think that a simple triangular mizzen with a sprit boom, cut perfectly flat from strong canvas, would be easier to furl along the mast. I doubt if it needs to be bigger than 5-6 sqm.
Such a mizzen should ensure easy steering - and even self-steer the boat - much of the time.
Arne
