LOA (Length Over All) is a measurement from the tip of the bow, around the
edge of the deck - as in toerail - , to the edge of the stern). LOD (Length
Over Deck) is the straight line measurement you describe.

Therefore, two 30' yachts, one with a 12' beam and the other with a 10' beam
will have different LOD's!


"Simple Simon" wrote in message
...
No, LWL is a straight line measurement just like LOA.


"Wally" wrote in message
...
"Simple Simon" wrote in message

LWL is measured in a straight line from the water at the bow
to the water at the stern. LOA is measured from the stem fitting
(not the plow anchor, mind you) to the transom at its longest
point in a straight line.

Isn't the LWL measured from stem to stern along the path that the water
takes? Hence, for a given 'straight' LWL, a beamy boat would have a
slightly
longer LWL than a narrower boat. Of course, this would mean that an
estimate
based on a straight line measurement would be slightly short.


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