ack! my bad... I thought that was the spinnaker! (tells you how long I've been out of it - and the rigging would be all wrong for a spinnaker anyhoo... 'scuse me while I smack my head a couple of times.) And yeah, you can go nuts on such a thing (considering the amount of interior you've added, looks like you already have, hehehe...) Sorry if I may have sounded weird in describing things up there, but I didn't know how close to the water you lived :) As for the running gear, it'll be tough, but I think it can be done: You may want to seperate your block and pulley objects from your lines, build the lines as complete units (loops and all) and let the user set a given scale (x,y,z) on those lines to accomodate the boom. you'll still have some troublesome distortion on the bights if the lines are stretched too far w/ scaling, but hopefully the pulleys and other tackle can be built to cover that up a little. With winches, you'll be alright with still renders, but otherwise some sort of wheel rotation mechanism will have to be put in for animations (ugh... I don't envy you there.) Oh, and you'll need cleats.... lots of 'em! Ahh, I'll shut up now. I love getting into the engineering challenges of things myself. :) On a more wishful note, If I ever move to a coast again, I think I'll ditch the idea of living on land, and just geting a nice sized single-masted boat anyway. 'course, I'll have to carry my butt back towards learning how to sail one, but still...