"Simple Simon" wrote in message

The LOA I measured at 27 feet is 12.5mm
The LWL I measured at X is 11.6mm.

12.5 and 11.6mm screen size? Are you using a palmoid computer?


Now all we have to do is solve for X
X times 12.5 = 27 times 11.6
or X = (27) (11.6) divided by 12.5
or X = 25 feet.

I agree with your result, but that's a rather odd way to apply a ratio to a
value. I would have done...

Ratio = 11.6 / 12.5 = 0.928

X = 0.928 x 27 = 25.056 feet.

Or, as a single formula in a spreadsheet, or step in a program...

X = 27 x (11.6 / 12.5)

A look at the angle of the stem should be enough to convince anyone that the
LWL is nowhere near 22 feet - it's simply too steep to have lost 5 feet by
the time it gets down to the water. I make the height of the bow at about 4
feet above the waterline - to lose 5 feet in the length, the stem would have
to be shallower than 45 degrees, which it plainly isn't. How the LWL has
come to be commonly listed as 22 feet is beyond me.


--
Wally
I demand rigidly-defined areas of uncertainty!
www.art-gallery.myby.co.uk