The AT3 is lighter, more aerodynamic but nowhere near as tough, it also has more frequent and expensive tech issues. Not to mention being £100k to buy.
It's a good plane but it's been designed for a different job, not to mention that it needs full rudder on the take off roll in zero wind, which is wholly unacceptable for a trainer.
the CT and the C42 are the same except that they're microlights, so only good for NPPL (M) and PPL (M).
Those flying schools I spoke to that have been using the AT3 in anger, wish they weren't for the above reasons.
Mission is key. You can't compare apples and cucumbers
or oranges with potatoes
