You know, I don't know if you will ever be successful in RC much less jets. You show zero ability to search things out for yourself. There is a LOT of info on this site pertaining to this VERY question, as well as 99% of the questions you've asked before. If you can't take a minute to do SOME research on your own, you will never have a jet completed properly as you'll always be waiting for somebody else to do it for you. A P40 is not going to give you success in learning to fly much less get you ready for jets. A PT40 trainer is a good place to start, then something like a 4 star 40, then maybe a quickie 500, then your P40, then maybe a fast pattern bird or a sport pylon plane, THEN maybe a jet. People have spent valuable time on this site over the years answering questions time and again. I myself wrote a long thread about getting started in jets.

The bottom line is, PATIENCE is key in RC modelling, you have to have the right attitude to be successful, waiting for everything to be handed to you on a silver platter is NOT the right attitude. From reading your other posts, you don't have instructors where you are, you are an "expert" with 2 channel park fliers but you crashed your park flier in the river. You want a sim or a 3 channel plane for xmas.

Don't get me wrong, I would love nothing more than to see you be successful in RC modelling, and then in RC Jets, but dude, you REALLY have to sit back, and do things the right way. If you're on as much of a budget as you say you are, I don't know how you're going to get a turbine jet successfully flying.

Again, use the search feature, there are TONS of threads about the questions you are asking, I already tried pointing them out to you in another of your threads, so I'm not going to do it again, you can call me a jerk if you want to, but I really am just trying to get you in the mindset you'll need to learn to fly RC.