I wanted to try something different and I bought this F20 EDF ARF. http://www.nitroplanes.com/f20tigershark.html It came with a single sheet of instructions which is a copy of a copy of a copy -- so the instructions are pretty much worthless as there is
Someone asked me for pictures. Not only does it fly, but if you ask too much of it it crashes, too! http://www.ccwebster.net/robintim/cap_232/cap232.html
I posted a couple of new articles on my website at www.balsaworkbench.com. One of them involves propeller guides for 2 stroke and 4 stroke engines. I don't know the original source for these charts, and I don't have a lot of experience with engines larger than a