I decided right from the start that this boat would have 2 masts with a lugsail on at least one of them. Traditional working boats of this type carried a dipping lug foresail and standing lug mizzen, both boomless and low aspect ratio.
The advantages/features of this rig where;
1. masts where out of the way of the working area at either end of the boat.
2. large sail area for light winds that could easily be lowered or reefed for high winds.
3. low aspect ratio sails, large area set on short masts that are easily struck and stowed when not needed.
4. symplicity, no standing rigging only halyards belayed to windward.
5. no booms to endanger fishermen
6. yawl rig combined with long keel gives self steering
The only downsides of this rig that I can see are the dipping lugsails' cumbersome and dangerous tacking single handed and the lack of down wind spread with boomles sails. The first of these can be fixed with a standing lugsail and the second with a whisker pole for long downwind runs. several recent plans feature the option of a standing lugsail yawl rig, but they all seem to have high aspect ratio sails like those of the salty heaven by mikey floyd;
Mr Vievers Ebihen design has a more traditional shape to its sails;
These lugsails also have verticle or aft raking luffs and mast wheras traditional standing lugsails have plumb masts and forward raking luffs;
The tack positions of all three sails varies as does the type of mizzen. Of the three optional rigs shown, the third rig seems to fit with my hull profile (almost identical too that shown with the rig) better, but looks like it might lack sail area for light going and I'm not too keen on the forward raking luff. The Ebihen rig has a pleasing profile and the tack forward of the mast loooks better on paper but not when sailing on the bad tack and somehow doesn't fit my hull profile asthetically. The salty heaven rig has a much higher aspect ratio, will this actually make much difference to windward or just add mast length and weight aloft? it does however have more luff length for reef points. what about the type of mizzen, is a lugsail worth the extra spar on such a small sail? Any advantage to a mast set a foot further aft and a jib set with a bowsprit? what rig would you choose and why?
Also how much sail area would you give a 17ft by 5ft 7.5'' hull with a draft of 2ft 4'' and a displacement of 1.25 tons with a moderately deep v hull form.