FOUR POINT ROLL  From a straight and level flight path, the model is rolled 90 degrees and holds this attitude, with the wings in a vertical position, long enough for it to be clearly defined.  The model is then rolled another 90 degrees, in the same direction of rotation and holds the inverted attitude long enough for it to be clearly defined.  This is followed by another 90 degree roll in the same direction, bringing the ship to another knife edge position.  Following a similar pause in the roll, the ship finally rolls another 90 degrees to upright and level flight.

Downgrades:

1. Model not level at start of roll

2. The path traced by the model is not a straight line. (The plane does barrel roll segments or suffer changes in heading.)

3. Sudden correction in heading between roll segments.

4. Plane changes altitude during roll

5. Plane does not pause long enough between each segment of roll

6. Wings are not exactly vertical at 1/4 and 3/4 positions

7. Plane fails to do level flight at end of roll.