When I was 16 I had a heavy foam trainer with a Cox Golden Bee .049 for power, the plane could'nt take off from grass (not enough power) it had to be hand launched and it only had two channels. I think it cost me a couple of pay checks to acquire and I only got a couple of flights out of it before I crashed it into a wooden fence. Times have certainly changed. Good luck getting a 40% plane. My advice to you is to get that 40% and anything else you really want before you get married and start a family. I was 29 when I finally replaced that old trainer with a Thunder Tiger Trainer .40 and four whole channels. Times have certainly changed.