Addresses are listed alphabetically in the Index of Manufacturers in the magazine. It would be difficult to praise the Norvel Big Mig .061 engine enough. It did require some trim to settle in on a level flight path, but once trimmed, it held that trim at all throttle settings. In this configuration, its bag of tricks includes nice round loops and wingovers with a stall turn thrown in for good measure. It will also fly inverted, but it is not a bit happy and needs a lot of elevator.
Snap rolls are nice and quick when it is slowed a little.
In fact, I was able to execute a loop with a snap at the top that looked pretty good. After all, when a novice pilot has learned to do all these tricks, he's ready to move on from a trainer, anyway. The Tutor has a fairly big wing that does its job keeping the airplane in the air with very little power.