161
Federal Aviation Administration, DOT
Pt. 60, App. B
2.c.6.
........
Longitudinal Maneuvering
Stability (Stick Force/g).
±
5 lb (
±
2.2 daN) or
±
10%
pitch controller force Al-
ternative method:
±
1
°
or
±
10% change of elevator.
Cruise, Approach, and
Landing.
Continuous time history data or a series
of snapshot tests may be used. Record
results up to 30
°
of bank for approach
and landing configurations. Record re-
sults for up to 45
°
of bank for the cruise
configuration. The force tolerance is not
applicable if forces are generated solely
by the use of airplane hardware in the
FTD. The alternative method applies to
airplanes that do not exhibit ‘‘stick-
force-per-g’’ characteristics. CCA: Test
in Normal and Non-normal control
states.
X
2.c.7.
........
Longitudinal Static Stability
±
5 lb (
±
2.2 daN) or
±
10%
pitch controller force.
Alternative method:
±
1
°
or
±
10% change of elevator.
Approach
.............................
May be a series of snapshot test results.
Record results for at least 2 speeds
above and 2 speeds below trim speed.
The force tolerance is not applicable if
forces are generated solely by the use
of airplane hardware in the FTD. The
alternative method applies to airplanes
that do not exhibit speed stability char-
acteristics. Level 5 must exhibit positive
static stability, but need not comply with
the numerical tolerance. CCA: Test in
Normal and Non-normal control states.
X X
2.c.8.
........
Stall Warning (actuation of
stall warning device.).
±
3 kts. airspeed,
±
2
°
bank
for speeds greater than
actuation of stall warning
device or initial buffet.
Second Segment Climb,
and Approach or Landing.
The stall maneuver must be entered with
thrust at or near idle power and wings
level (1g). Record the stall warning sig-
nal and initial buffet if applicable. CCA:
Test in Normal and Non-normal control
states.
X X
2.c.9.a.
.....
Phugoid Dynamics
..............
±
10% period,
±
10% of time
to
1
⁄
2
or double amplitude
or
±
.02 of damping ratio.
Cruise
..................................
The test must include whichever is less of
the following: Three full cycles (six over-
shoots after the input is completed), or
the number of cycles sufficient to deter-
mine time to
1
⁄
2
or double amplitude.
CCA: Test in Non-normal control state.
X
2.c.9.b.
.....
Phugoid Dynamics
..............
±
10% period, Representa-
tive damping.
Cruise
..................................
The test must include whichever is less of
the following: Three full cycles (six over-
shoots after the input is completed), or
the number of cycles sufficient to deter-
mine representative damping. CCA:
Test in Non-normal control state.
X
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