On Wed, 06 Jul 2005 15:46:12 GMT, Ignoramus12555
wrote:

For a typical 29-30 ft powerboat on a triple axle trailer, what would
be the necessary tow vehicle capacity to tow it? My BIL suggested that
I buy a bigger boat and my wife was actually receptive to the idea.

At least a three quarter ton, if not a one ton pickup - you are
looking to tow a lot of weight.

You also have to consider towing complications like width - not many
boats in that category are slim enough to trailer without getting
special permitting every time you trailer the boat.

You can obtain trailers for boats like that - I have one to store my
Contender on. I use it to pull the boat a couple/three times a season
to wash the bottom, check things over and relaunch. I store it over
winter on the trailer at the marina. Saves me money.

That might be an option you want to consider.