I've flown my AJ-2 with both a Q-40 engine and a Thunder Tiger Pro 40 (TT).

With the TT it flies very well. These are faster than the 424 class Q-500. These fly nominally 125 to 140 mph (sentence edited 05/23/09). These are faster than the 424 class but not as fast as the 428 models.

These are fast enough to get the blood moving but they are still easy to fly.

I use a 4 ounce Tetra tank and have plenty of fuel for a race.

With a 9 x 6 APC prop they will take off a sheet of plywood, like is done for Q-500 racing.

My engines are equipped with an engine kill so it lands like a Q-40, dead stick. It keeps on gliding so plan accordingly.



FYI - I'm using mine as a step up tool to improve my flying skills. I still plan on flying the 422 class. This model will help me improve my flying and landing skills.