Reinforcement to Fuse.
raskco;
When designing and building Q-500's I try to maintain strength as well as lightness.
If say I use 1/8th Balsa sides I use a piece of Fiberglass Drywall tape which has a light tack to it. This enable's me to run it 1/4" to the inside of the firwall all the way to the tailfeathers. With a very thin coat of 30-45 min Epoxy, this method can give you a very strong fuse. At the same time your constructing the fuse you can fuel proof the Tank area.