This is from post #610 - its what I did to get the retracts up in the wings almost entirely. Just be a bit careful with the chisel thing. When I gave it a firm knock the whole retract mount came loose. Imagine that!!
ORIGINAL: Rbeav533
Frag,
Rather than designing a new set of wheel wells, I'd suggest removing the 1/8" lite-ply shims under the retracts. I'm currently building the RB myself and I've removed these shims to get my Spring Air retracts to nest deeper into the wing. All that's holding these shims in place is a very light amount of CA glue. I used a 1/4" screwdriver as a chisel, a sharp blow with a small hammer and the shims came right out.
I've already modified the front section of the inner frame work by adding a removable lite-ply floor for the fuel tank. With the fuel tank floor in place there's plenty of room for the short Spring Air airtank. I'll be mounting the retract servo in the unused opening in the stock servo mount and installing a small mount for the air valve directly in front of it. Once my trim flights are completed, I'll be installing full gear doors.
Rich