Might be a Chris Craft Catalina
A fellow in the model boat club started this build but did not finish.I was given the model to finish up. She's a scratch-built 34-inch x 11-inch beam with a prop shaft of about 11 inches.I needed to modify the cradle, as the stuffing box that sat on the cradle took about 3 inches off the stand.The rubber was also a little too long and I thought that I should cut it down a little. I think the model is based on an open-cockpit Catalina, an older Sterling-style model not sure I have no info on the make.