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About him&her

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  1. Looking at fast boats that carry multiple sails downwind I've come to wonder... How close can the sails be to each other, and still have enough of a "slot" for the wind to cause as little interference as possible? Is there some kind of calculation for this? For example... the Volvo Open Ocean 65's seems to have them, what, 5ft apart?
  2. How big, from either experience or arm-chair trimming, is a sail just too big to handle single/short handed? Because a main has a boom, it handles differently than the front sail, and then we have the monster kites... so perhaps we could separate all three? random examples... The M32 cat has a 560sq/ft main... A Beneteau Figaro II has 320sq/ft of front sail (jib)... A J/105 has 950sq/ft of spinnaker...
  3. him&her

    Why have multiple sails downwind?

    That's my least favorite part of a sailboat to be honest... I know I know I'm not a REAL sailor Movable interior ballast really needs to take off. Much simpler than canting anything... Fighters jets use it geez! (I don't mean JUST water ballast, but actual movable lead inside).
  4. him&her

    Why have multiple sails downwind?

    I guess that's a function of the hull shape? More wide = More Heel?
  5. Why do these Volvo boats all use multiple sails going downwind? Is it because they are not really going downwind? I.E. with the apparent wind forward enough that one sail doesn't blanket the other? If so, are all planing hulls sailed basically the same? With the jib open AND the asym?
  6. Hahahah of course of course but then I wouldn't be a proper sailor! So that's my point right there, keel ballast does nothing for righting moment when flat, hence why sailboats NEED to heel. Instead, why not have 100% righting moment at 0 degrees of heel, with windward water ballast? (never mind multihulls of course...). I ask because you can make a monohull much lighter, cheaper, and trailerable compared to a multihull... if you could only get rid of the damn lead! P.S. Foils, like the new AC boats, are for another discussion of course (another form or righting moment, "dynamic RM" if you will.)
  7. So that would mean that these boats NEED the water ballast otherwise they would just fall when sailing right? (Since they are designed for it...) Cool cool.
  8. Newb question... Isn't it theoretically possible to completely replace keel ballast with windward water ballast? I know I know, you would loose the ability to self right, and you would have to make sure you have the windward ballast filled... But, theoretically, can't the righting moment created by the lead ballast be more than offset by some water ballast? Perhaps a compromise can be made to keep just enough keel ballast to self right, but use adjustable ballast (water or otherwise) for righting moment when sailing?