IMMELMAN TURN  The model starts the Immelman flying straight and level, pulls up into half loop followed by a half roll and finishes flying straight and level exactly 180 degrees from the heading at entry.

Downgrades:

1. Model not level at start

2. Model deviates left or right during half loop

3. Half loop not completed exactly above point of commencement of half loop

4. Half roll does not commence immediately after of half loop

5. Plane deviates from a straight line during roll

6. Model does not finish in level flight

7. Model heading does not finish exactly opposite the direction of entry

8. Half loop not round