Cougar
The servos are better fit to install in the back and front well wall particularly if you do not have a servo reverser or match box. One door will open and the other will close without it. I chose to mount them in opposite positions to eliminate the match box for now. If they work I will be installing them in a perminate position thru the back wall of the well with a match box.The location for now is temporary.The balsa sheeting on the inner gear doors are strong and addaquite for there proposed purpose. They will be closed during any high speed flying and only opened during landing approaches at lower speeds. The hinges are at the very top of the well and bottom of the fuse, I used Great Planes CA hinges. The sequencer was set up using a mock up door for testing until my light bulb came on and I was successful programing them,( trial and error ) I also chose to make new gear doors to replace the supplied plastic ones. (See photos.) What size wheel did you use and mfg. name?