Are the tail feathers on the trainer glued on or bolted on.
If bolted I would say a World Models Mach 1.
The Mach 1 uses a semi-symetrical wing instead of a flat bottom.
Again, most of the trainers look alike and are hard to tell apart.

Fix and keep the trainer. They are great to have at the beginning
of the flying season to work out the cobwebs.
They are also great for Fun-Fly games.

Good Luck,
KW_Counter