57
Federal Aviation Administration, DOT
Pt. 60, App. A
2.c.9.
.............
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
overshoots after the input is com-
pleted), or the number of cycles suffi-
cient to determine time to
1
⁄
2
or double
amplitude.
CCA: Test in Non-normal control states
X X X X
2.c.10.
...........
Short Period Dynamics.
..
±
1.5
°
pitch angle or
±
2
°
/sec
pitch rate,
±
0.10g accel-
eration.
Cruise
..........................
CCA: Test in Normal and Non-normal
control states.
X X X X
2.c.11.
...........
(Reserved)
2.d.
................
Lateral Directional Tests.
..................
Power setting is that required for level flight unless otherwise specified.
2.d.1.
.............
Minimum Control Speed,
Air (V
mca
or V
mcl
), per
Applicable Airworthi-
ness Standard or Low
Speed Engine Inoper-
ative Handling Charac-
teristics in the Air.
±
3 kt airspeed.
Takeoff or Landing
(whichever is most
critical in the air-
plane).
Takeoff thrust must be used on the oper-
ating engine(s). A time history or a se-
ries of snapshot tests may be used.
CCA: Test in Normal or Non-normal con-
trol state.
X
X
X
X
Low Speed Engine In-
operative Handling
may be governed by
a performance or
control limit that pre-
vents demonstration
of V
mca
or V
mcl
in the
conventional man-
ner.
2.d.2.
.............
Roll Response (Rate).
....
±
10% or
±
2
°
/sec roll rate.
Additionally, for those sim-
ulators of airplanes with
reversible flight control
systems:
±
10% or
±
3 lb
(1.3 daN) wheel force.
Cruise, and Approach
or Landing.
Record results for normal roll controller
deflection (about one-third of max-
imum roll controller travel). May be
combined with step input of flight deck
roll controller test (2.d.3.).
X X X X
2.d.3.
.............
Roll Response to Flight
Deck Roll Controller
Step Input.
±
10% or
±
2
°
bank
angle
......
Approach
or
Landing
...
Record from initiation of roll through 10
seconds after control is returned to
neutral and released. May be com-
bined with roll response (rate) test
(2.d.2).
CCA: Test in Normal and Non-normal
control states
X
X
X
X
With wings level, apply
a step roll control
input using approxi-
mately one-third of
the roll controller
travel. When reach-
ing approximately
20
°
to 30
°
of bank,
abruptly return the
roll controller to neu-
tral and allow ap-
proximately 10 sec-
onds of airplane free
response.
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