RE: Aquacraft Paradise - modifications
The pics look great! I've had this boat for awhile now and suffered some of the same problems. I'm not going for speed or anything so I zip-tied an 8oz. lead fishing weight to the bottom of the bulb. It's fixed many of the handling issues and I haven't had it dip down into the water like Ofranek even in gusty weather, though it may tip over a bit more than his.
I didn't have to seal the top hatches but ended up having to seal around the rudder and the keel to keep it from leaking. I've had the same bit of petroleum jelly around those parts for almost 2 years without leakage.
Alas, the rudder is terribly small and I have no idea how I'd go about making a larger one. Any suggestions?
Wish I could help you out Larry, but I'm an airplane guy too. Half of my strings broke when adjusting the sails so I'm not sure if I'm anywhere close to rig at this point.