Just got the RCM Trainer 40 myself. I have yet to fly it but so far the assembly is going well. Bakes65, did you have any trouble mounting the engine? The stupid blind nuts keep popping out on mine so I can't tighten it down. I'll get it though. It's taking me a bit long to build it as I only have a little time each evening but I'll second that the assembly is easy and the instructions are very well written, easy to follow for a first timer. She'll be taking to the skies this weekend!