Deadrise is measured at the transom.

Your numbers are logical to me. Larger boats would be more likely to be
offshore boats, needing more 'V' for comfort in the normal choppy seas.
Deckboats are heavy damn things for their length and need all the help they
can get to plane, and would almost never be used offshore. Lots of older
boats, Crist Craft runabouts, etc. have almost no deadrise, better to plane
with the lower power of the time, comfort be damned.

"Petey the Wonder Dog" wrote in message
...
Reading thru lots of material and lots of brochures, everyone lists
deadrise.

Seems that the deckboats have a lesser degree of angle, (15 - 17degrees)
bowriders of shorter length have middling degrees, 18 -19 and larger
boats 23' and up, higher degrees.

So the larger the boat, generally, the deeper the vee, and less of an
ability to plane. (and also a smoother ride.)

What I can't find is where it's measured. Is there a standard, or is it
arbitrary based on the hull technology?

If that's the case, why bother to advertise it if it doesn't mean much.