I'm doing a school project on the stresses throughout Pitts wings during high-g loading. I need to model a rudimentary structure for the wings and I'm not too familiar with the placement of the struts. I was wondering where exactly they are attached. Are they attached to a spar or a rib? Also, I need to know the materials used. I believe the main spars are wood and the struts are some kind of metal, but I'm not sure what kind. If you could help me, I would really appreciate it. Thanks!