5-43 Flight Check
1.
Hover:
a. Verify normal gage indications.
b. Verify controllability in left and right pedal turns.
c. Verify hydraulic system zeros cyclic stick forces.
d. Evaluate vibration levels; if unacceptable, measure imbalance
and correct.
2. Level Flight:
Conduct at typical cruise altitude (weather permitting) and maximum
continuous torque. Loading to typical operating conditions or nominal
weight and CG in middle of envelope will provide the most useful evaluation.
a. Verify tail rotor pedal position when yaw string is centered.
Right pedal 0.25 to 0.75 inch forward of left pedal.
b. Verify tail rotor elastic trim cord zeros pedal forces (cord
applies left pedal force).
c. Verify hydraulic system zeros cyclic stick forces and collective
is balanced with no feedback.
d.
Verify acceptable control forces (feedback) with hydraulics
off.
e. Evaluate vibration levels; if unacceptable, measure imbalance
and correct.
JUL 2020 Chapter 5 Inspections Page 5.11
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