Weight equalisation

Originally posted by ChrisI Love the discussion and Happy New Year to all. Nice picture GRF and glad to see you've been out over Christmas/New Year. Here's a suggestion on your original question (from another engineer ) if you have a spare moment in a coffee break. Make up a model but make it with one mast and a trapeze (with weight etc) EACH side so it is exactly balanced. Then without changing the position of the weights change the attachment point on one of them and see if the thing unbalances.

Yes, exactly what I was planning to do, have even got a set of warehouse scales to set it all up on.
Just need to set it up with a model helm that won't shut up moaning all the time.

PS Very interesting data analysis on the RS800 from Mozzy... many thanks.

Which still gets back to the original question, what's best to achieve that high or low hook?

Originally posted by iGRF Which still gets back to the original question, what's best to achieve that high or low hook?

Mozzy’s et al have told you, pay attention - hook should be just above your CoG.

If you want more righting moment you need to trapeze low, perpendicular to the mast with the boat absolutely flat as that moves your CoG out marginally further. And be out in your tippy-toes, and in platform boots in your case. Which all works as long as you are not crashing into waves, obvs.

As usual, the moral is that if you’d learn to apply accepted best practice, you’d gain far more on the water than by trying to invent new tricks that aren’t there.

Interesting thread tho; it’s wakened the place up.

Originally posted by 423zero Griff, what do you make of the 'dead downwind speed' thing? Thought you would be all over that.

If like me you joined the AYRS which I ran into during my eccentric speed week and revolutionary sail design period, in which I had to develop a sail to allow light weight me to take on heavyweight speed meat heads. You meet all those kind of guys, how to sail dead upwind, perpetual motion devices, although I must admit that device is genius in that it works. I love eccentrics that want to defy the alleged laws of physics, one day someone may find the means to travel faster than light, which I once proved to my physics master at school in theory at least only to be treated with as much derision as I receive here.

Honestly I don't fully understand a lot of what the informed guys have clearly postulated, nobody has adequately explained in a manner that convinces me for instance that a rack and wire achieve the same thing and that need to be disproved.

So this theory v mechanics thing aint over for me, there's something missing that I haven't completely grasped, even if you assume the weight transfer goes up the wire, then down the other side via the lee shroud, the leverage is still greater than that same weight being applied to a static rack which might scientifically explain at least why a trapeze is faster.

Edited by iGRF - 04 Jan 22 at 7:12pm