I fly an Arrow. I usually call myself Arrow 58J. One time, a controller responded by calling me Cherokee 58J. (She didn't scold me or correct me. She just used that call sign when responding to me.) I have also seen and heard people use the call sign Piper. And of course I could just be November. "Say Again Please" (great book, by the way--if you are a student pilot you need to own it and read it often, and if you are a certificated pilot you should at least read it as you will likely find a tip or trick that you were forgetting all these years) refers to an appendix of JO 7110.65 that was later removed and replaced with a reference to another JO, which does not specify this information (it just has the ICAO airplane type codes, as in P28R). Controllers or bookworms: Is one of these call signs more correct than the others? Is there an official reference?