GFC Team Agreement - CAFE Foundation

plot of stick force in pounds versus airspeed deviation in mph must be positive
(i.e., slope upward and to the right on the graph) throughout the tested range of
airspeeds. This slope must be at least 1 pound of force for every 10 mph off trim
speed.
6) Maneuvering stability (lb/g) at Va: Performed at � 5000 feet AGL over unpopulated
areas.
a. Aggressiveness: After initial, gradual familiarization with the aircraft’s controls,
assess maneuvering stability as follows:
Trim the aircraft for level flight at Va at fixed power. Using a stick force
gauge, apply pitch force input to increase G and note the number of
pounds necessary to generate 1.5, 2.0 and 2.5 G.
b. Goal: Acceptable minimum “Stick force per G” depends upon the type of control,
as follows:
GUIDELINES: From 1797A, page 303, 307:
Minimum Stick Force per G
Center Stick 3.0
Yoke or Wheel 6.0
Side Stick 4.0
7) Braking effectiveness:
a) Aggressiveness: After initial, gradual familiarization with the aircraft’s
landing characteristics, upon touchdown, apply firm braking while
maintaining straight ahead direction. Note G force generated and adequacy of
directional control.
b) Goal: Acceptable braking is a deceleration rate of 0.2 G with ability to
maintain straight ahead direction.
TEAMS are encouraged to eliminate test pilot bias and foreknowledge of an aircraft's bad
habits by having no mutual test pilot conferencing prior to each pilot writing their
evaluation. Test pilots must also be wary of having to be timid or decrease aggressiveness
to obtain better or satisfactory results.
The Cooper-Harper Rating Scale for Handling Qualities is shown below:
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