I just thought it interesting to know that the " decidedly inferior" Tower .46, also descibed in this thread as low power/marginal power, bushed engine, that does come in the RTF version of the Tower Trainer is in fact a ball bearing ABC schnuerle engine that produces 1.75 hp @ 16,000 rpm, while the OS .46AX produces 1.65 @ 16,000 and the OS .46FX produces 1.36 @ 16,000. The 46LA is the most under-powered @ 1.2 hp, Here's your sign![X(] Now don't get me wrong, I'm not knocking OS engines, they are mostly what I own. I do have that Tower .46 as well and with about 3 minutes worth of fuel ran thru it, it smoothed right out, has a great low idle, plenty of power, and basically runs like a raped ape!
I have no reason to beleive it won't do so for a very long time as long as I take proper care of it. The point is I would never trash a product on an open forum until I first armed my opinion with the facts, which is exactly what I just did, I read the specs on all three of these engines. I would not hesitate to use this engine in another .40 size plane. If my OS .60 that I plan to use in my next project runs nearly as well as this Tower .46 does, I will be very pleased with it.

I believe RcKen stated in another thread that his Tower Trainer has over 500 flights on it & is still running strong, but I don't know what engine he has in it.

As someone else mentioned above they are all good Trainers. If money isn't a real issue for you, just get the one YOU like best, after all it is going to be your plane! But if you are looking for a bargain, $259+ shipping for the RTF Tower Trainer is the cheapest that I am aware of. I can't personally comment on the two specific models you asked about because I don't own either one. They both look like nice Trainers to me. I was given a new Tower Trainer RTF as a gift, so that is what I'm using. Good luck in whatever you decide, and just have alot of fun with it Afterall, that is what this is suppose to be all about!


Mark


Mark