231
Federal Aviation Administration, DOT
Pt. 60, App. C
2.d.3.
..........
Dynamic Lateral and Directional Stability
2.d.3.a.
.......
Lateral-Directional Oscilla-
tions.
±
0.5 sec. or
±
10% of period,
±
10% of time to
1
⁄
2
or dou-
ble amplitude or
±
0.02 of
damping ratio,
±
20% or
±
1
sec of time difference be-
tween peaks of bank and
sideslip. For non-periodic
responses, the time history
must be matched within
±
10 knots Airspeed;
±
5
°
/s
Roll Rate or
±
5
°
Roll Atti-
tude;
±
4
°
/s Yaw Rate or
±
4
°
Yaw Angle over a 20
sec period roll angle fol-
lowing release of the con-
trols.
Cruise or Climb. Augmenta-
tion On and Off.
Record results for at least
two airspeeds. The test
must be initiated with a cy-
clic or a pedal doublet
input. Record results for six
full cycles (12 overshoots
after input completed) or
that sufficient to determine
time to
1
⁄
2
or double ampli-
tude, whichever is less.
The test may be terminated
prior to 20 sec if the test
pilot determines that the re-
sults are becoming uncon-
trollably divergent.
X X
X
2.d.3.b.
.......
Spiral Stability.
±
2
°
or
±
10% roll angle.
Cruise or Climb. Augmenta-
tion On and Off.
Record the results of a re-
lease from pedal only or
cyclic only turns for 20 sec.
Results must be recorded
from turns in both direc-
tions. Terminate check at
zero roll angle or when the
test pilot determines that
the attitude is becoming
uncontrollably divergent.
X X X
2.d.3.c.
........
Adverse/Proverse Yaw.
Correct Trend,
±
2
°
transient
sideslip angle.
Cruise or Climb. Augmenta-
tion On and Off.
Record the time history of ini-
tial entry into cyclic only
turns, using only a mod-
erate rate for cyclic input.
Results must be recorded
for turns in both directions.
X X X
3. Motion System
3.a.
.............
Frequency response
Based on Simulator Capa-
bility.
N/A
.........................................
Required as part of the
MQTG. The test must dem-
onstrate frequency re-
sponse of the motion sys-
tem as specified by the ap-
plicant for flight simulator
qualification.
X X X
VerDate Mar<15>2010
20:48 Jan 30, 2014
Jkt 232047
PO 00000
Frm 00241
Fmt 8010
Sfmt 8002
Q:\14\14V2.TXT
ofr150
PsN: PC150