Thanks Doug! The Cox PT-19 was one of the best if not THE best control line trainers. Almost impossible to destroy. After a crash (on grass), new rubber bands to attach the wing, clean the grass from the engine and fly again. Great memories. The Cox red P-51 was really bad however. Integral fuel tank in the fuselage, plastic venturi / mount on the back of the engine, a little over-priming and WHOOSH, an engine fire that melted the front fuselage. And it was a bad flier to boot.