This one is really old, may need to take some better pics. Trying to find out if it is a scratch built or someones kit. didn't measure, but wing span is about 60". the outer 7" are removable and it also has pontoons that bolt to wingtips

Looks like an Ace Seamaster to me splais.

Chad hit it.

Looking at the tail section with the lightening hole pattern, it's a Seamaster 40.