Dan, I have considered wing tanks like you are talking about myself. There are many ways to go about building them as you already know. One way would be to have a sheet metal shop bend some aluminum to a tapered rectangle ends shape you desire. One end may be 2 or 3 inches tall and the other end may be 4 or 5 inches tall by whatever length you decide to make your tanks. You will have to decide how many gallons you want in each of these tanks. Leave one long top edge/corner of the bent sheet aluminum as the weld together edge/corner or overlap for proseal pop rivet like Mark Jones tank was done and then weld or proseal the two end caps in like Mark Jones. Use wide strapping screwed or bolted through the front and rear spars to support the tank in multiple places, put rubber or something between the strapping and the tank to prevent a hole or corrosion. You could also place ribs on each end of the tank that fit from the front to the rear spar as additional supports. Flox it into place as additional support while intalling. Once you decide how you want to build your tanks, the dimensions etc, then just build them, test them, make sure they are leak proof. At that point you can decide if you have enough time to install them before spring flying time. If so, cut into the wing, place the tank, flox and strap it in and repair the bottom surface skin and go fly. Sounds easy, doesn't it? Larry H.
________________________________ From: Dan Heath <da...@windstream.net> Wet Wings I was going to build my wet wings with aluminum, so I could build them outside the wing and then test and install. I may still do this, but am concerned about getting them the right size and not interfering with the twist of the wing as they are going in the outboard wing. I am not sure that this is even a factor. So, I am thinking that I might build glass wings in the wing, but would want to go in from the bottom so I would not have to repair the top of the wing. I am concerned about support for this type of tank built into the wing. I have studied both Marks' sites on the fuel tanks, but will welcome any pros and cons that you may have to offer. I am very apprehensive about assaulting these nice wings that I have now. FYI, they are RAF48 Diehl skins. I am just in the planning stage now, and won't get around to this till winter for sure. I don't want to be down for spring flying.