Jim
It is had to believe I started this a year ago. The changes I made are mentioned in #4 above. Here they are so you do not need to look for them.
" There are a few changes on the Brodak kit but I have fallowed Pats suggestions. There are a few mistakes in the kit compared to the plans. The kit fuselage is like the Pat design but the kit plans are very different in the engine cowl.I also used 3/8 palsa for the front of the fuselage not laminated 1/4 sheet to the 3/32 sides. The plane is very close to the Rabe Bearcat but with a larger stab and thicker wing. Also equal wing panels. I spent a lot of time today shaping the stab profile,sand,sand,sand Grin"
I changed the ruder shape a lot to make it look more scale like. Do not use any kit wood that is not contest grade. It is very hard to build to 50 ounces. I did everything to keep it light. Weight now is 54 ounces but it may have to much lead in the nose from the lighter motor that was in it. I felt it was to light at 48-50 ounces but that may have been because it was slightly tail heavy. The CG was correct but it had instant turn. I do not like to fly on close spaced handle lines so lead was added. Penetration in wind improved a lot. I will repaint the cowl tomorrow and fly it this week. All the previous flights with the Rustler 40 and the ST.46 have been very good with no trim needed except nose weight. It takes a lot of weight in the nose to move the CG 1/4". I would not recommend any motor except a rear exhaust one as a side exhaust motor will fill the nose with exhaust residue.
NOTE here is something I learned from building two bearcats. You can not use a on the side of the body tube for the uniflow. It is to far from the tank and the motor will go lean as the take gets half empty. Now my uniflow vent is next to the motor inside the cowl. If you look closely you can see my original tube sticking out the side of the body.
Ed
When I had the Rustler 40 in the plane I vented the uniflow out he bottom inline with the tank. I fought this problem for two years with my Rabe Bearcat.
Ed