If you allready own the tt46 and you like the idea of the larger 60 size Trainer. All I am saing is that yes the TT46 will fly most 60 size trainers adequately. I train new members as well and I would not refuse to train someone with that setup. It would serve the purpose fine. However...as other posters have pointed out...sometimes a bit more grunt can be a good thing, but I was just trying to make the point that you could get by with that setup just fine if you allready have that engine laying around not getting used. Use what you got so you can save money to go towards that new Jett 50 engine to mount on a Quickie 500 plane! Then you will really show them at the field who isn't the slow pokeLOL