Cooper-Harper Handling Qualities Rating Scale

1
Excellent Pilot compensation not a factor for
Highly Desirable desired performance

2
Good Pilot compensation not a factor for
Negligible deficiencies desired performance

3
Fair Minimal pilot compensation required
Some mildly for desired performance
Unpleasant deficiencies

4
Minor but annoying Desired performance requires moderate
Deficiencies pilot compensation.

5
Moderately objectionable Adequate performance requires considerable
Deficiencies pilot compensation

6
Very objectionable but Adequate performance requires extensive
Tolerable deficiencies pilot compensation

7
Major Deficiencies Adequate performance not attainable with
maximum tolerable pilot compensation.
Controllability not in question.

8
Major deficiencies Considerable pilot compensation is required
for control.

9
Major deficiencies Intense pilot compensation is required to retain
control.

10
Major Deficiencies Control will be lost during some portion of
required operations.