Jimmy G --
I am new to RC also and I am on my third airplane. I guess on the forum "second airplane" means something more advanced than the the airplane you trained on but I like variety. I have a Sig Kadet Senior (OS46 AX) that I learned to solo on and still love to practice landings and to relax with, I also have a H9 Arrow (OS46 AX) that I am learning basic aerobatic maneuvers and it is a little quicker than the Kadet and then I have a Sig Rascal 40 (OS52 4c) to learn how to fly a tail-dragger. So even though I have 3 airplanes they are all sort of "trainers". I know I am not ready for my "official second" plane yet but I enjoy the variety of having 3 "trainers" that are quite different from each other to choose to fly. If it is a nice still day I pull out the Kadet, if my instructor is available I bring my Arrow or Rascal 40 and practice with them. This has fulfilled my desire to move on to another airplane without exceeding my skill level. It works for me

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--Mark