Lightweight Broadbill,
Well, It was a hot topic around here for a few months in 2000. I made it from BS1088 1/8 inch with a layer of 4 oz glass and epoxy inside and out. I raised the front deck a couple of inches because I have big feet, bigger in waders too!
I added a few struts to the underdeck (3/4 x 3/4 ash) to keep it strong so that I could sit/stand on it.
It weighs about 60 pounds and I power it with an 8 hp 4 stroke.
If I did it again I think I'd use 1/4 inch plywood for the hull because the 1/8 inch was very flexable and hard to work with. Once you add the glass inside and out it ends up being pretty well what a 1/4 inch hull would be with glass on the outdside. I would still use 1/8 for the deck with reinforcements as mentioned above. I probably should power it with a 9.9 two stroke to stay in keeping with the "lightweight" concept however I had the 8hp 4 stroke so that's what I use. The motor is not light.
It is not as fast as my original broadbill with the 15 hp on it but it is plenty fast for me. I gets up on plane and goes about 18 mph with me in it. With a load (i mean a load) of decoys etc it only goes about 12 mph, but still on plane.
I really like the boat because I can easily handle it myself. I mostly carry it in to areas (or use a boat dolly) that I can't get the other broadbill (on a boat trailer). I really like the Broadbill design and style. Often I go hunting with a buddy and we use both boats, setting up in the weeds, laying on incline boards in the cockpits of the boats, running long lines of decoys off the stern. When it is snotty outside (or really really cold) this is the way to hunt. Snug and safe inside my broadbill cocoon.
Downsides: Small boat, seaworthy, but a small boat none-the-less. Can't take the kitchen sink with me but with two boats you can get most of the kitchen sink in.
Not as comfortable at full throtle as an aluminum big boat. It will fly but your body will pay for it.
After six seasons and seven years of Broadbill ownership I am still a believer. I know others build bigger boats and other boats, however the Broadbill suits my needs real well.
The second one you build goes together in 60 percent of the time.
Regards,
Jim