light smight.
Weight does not make a boat sail slowly. Not enough sail area for the displacement does and wetted area does. Many heavy boats are full keel designs which not only need more drive because of the weight but also the drag of wetted surface. Wetted surface is much more of a penalty in light air than displacement. btw. About the only thing that can be said with certainty about heavy displacement is it will be more comfortable in a seaway. Why a Cadillac 'rides' better than a Geo Metro. Ride and handling are two different things, btw. For coastal cruising, a heavy displacement boat, like a Westsail, is boring. On the open ocean, a light displacement boat can put you in survival conditions just to get from the galley to the settee in a force 3 wind. Apples and Oranges.Traditionally, identical hulls with ketch, sloop or double headsail sloop had different height spars and they were placed in different positions. The ketch's shorter mast and more forward placement are not be optimal for going to weather. Also, the mizzen typically offers no drive hard on the wind and shouldn't even be set. Going to weather is given way too much weight IMHO. It's a racer God that most of us should shun like Lucifer. A taller stick is better for light air than shorter sticks, even though they can set more sail area. Overall, a single mast rig is more efficient overall. The ketch rig comes into it's own in reaching conditions and the smaller individual sails which are easier to hand. A ketch/yawl lends itself to instant sail reduction by dropping the main for those pesky short lived squalls that come up in summer. Because of the split rig, the foretriangle should be smaller, so smaller, more easily handled sails. The same goes for the main. When it can be carried, a mizzen stay sail adds a lot of easily handled sail area. The problem is, inshore there aren't all that many times you can set the sail. On long ocean passages it's another story, however. I've had runs of a week or more where I could've set a mizzen staysail the whole time. Of course, not having a mizzen made it a little difficult.The questionis, when do you need a ketch rig?? For my money, anything less than 40' simply does not justify the expense and performance penalty of the second mast. With roller furling headails handling even huge headsails is a relatively simple task. Add slab reefing for the main, almost de riguer now, and split the headsails up with a double head sail rig and you could probably sail even a 50' boat with ease.Does that mean I would not have a two masted rig. No, I just wouldn't have it in a boat smaller than 40'. The mizzen is a great place to hang things, you can't beat the mizzen staysail when it's viable, and a seperate, independently stayed mast is a great emergency sail should the main mast come down. There is also the matter of aesthetics. I think there is nothing prettier than a classic Yawl. I'd buy, in fact, am looking for, one those of old classic yawls right now. A yawl typically carries the same height stick, in the same place as a sloop rig. The main boom may be shorter but that doesn't affect windward performance much and the mizzen makes up for the lost area of the shorter mainsail boom off the wind. You get most of the benefits of the split rig as soon as you crack off the wind with very little penalty hard on the wind. Having said that, the yawl rig had it's heyday under the CCA rule because it allowed unpenalized sail area. Had little to do with the inherent benefits of the rig. AlohaPeter O.AlohaPeter O.