I loved my PT-19. Yellow and blue and at one time I think I had four or five of them. I learned to fly better after learning on one of the testors rocks on a string, and taught others how to fly using this model.
I found if you really leaned the engine out, and got a good amount of height and dived the model so it went very fast, you could actually get it to do a sort of loop. Kind of eliptical, but it would do it. Wouldn't fly inverted though. Learned that later flying something with a black widow.
Always popular at parties; I usually had one plane or another in the car, and after a few adult beverages, was persuaded to get it out and fly it for everybody. Them beverages made my center of the circle get bigger and bigger and I flew my loop and the down leg went right into a neighbor's okra patch. The okra and plane both survived the incident. I then put the model away as to not hurt it. Stupid me I wasn't worried about hitting anyone, or anything, just the model.
I learned more better after that.
Enjoy the plane and after a while, perhaps you'll move to a larger plane. They are easier to fly, and do more than get you dizzy.
Best to you in the future with all your modeling adventures.
Bill