Xinebessa,
Presuming they haven't changed the a/c you have to learn from the 219 course then please see below, may not help you learn them as such but definitely helps testing them
Best way to learn the type is to (once you get to the college), keep swapping cards with everyone/library so you learn the shape instead of the liveries. As for the numbers, a lot of them can be grouped into similar speeds/levels.
AC Recognition
hope it helps
