Flight Control Operations and Limitations Flashcards
“Roll ratcheting” may occur because the F-16 has a ____ _____ that is automatically applied
Opposite roll command
FLCS will maintain __ flight with pitch trim centered unless AOA exceeds 15* in CAT I … the FPM stays on the horizon with no stick or trim inputs required regardless of changes in _____
1-g flight
regardless of changes in Airspeed
max pitch trim G
+3.4 nose up
-1.4 G nose down
pitch trim in Takeoff and Landing Gains means zero trim commands zero pitch rate until ___ AOA
until 10* AOA
Full roll trim = ____ stick command
1/5
the ARI (aileron Rudder Interconnect) in the FLCC ensures _____ and is non-functional when AOA >___ or during TO/LDG when MLG speed >__Kts
coordinated turns
non functional when AOA>29*
TO/LDG >60 Kts
T/O and landing Gains
max roll rate fixed at ___% of CAT I cruise gains
pitch response until ___ AOA
_G Max at 21* AOA
50% roll rate
pitch rate response until 10* AOA
1-G Max at 21* AOA
Cruise Gains
Cat III provides ______
provides protection from destabilizing effect of external stores
CAT I Pitch Axis Limiter
9 Gs at 25 lbs -3 Gs at 16 lbs AOA limiter reduces departure potential pure G until 15* AOA 1G max at 25* AOA Max 0 G <100Kts Max Neg G < 250 Kts Max 3 Gs
CAT III Pitch Axi limiter
1G at 16-18* AOA
blend at 7* at 100 kts
blend at 15* >420 Kts
Roll Axis Limites
CAT I: AOA >15, horizontal tail deflection >5 trailing edge down, airspeed <250 Kts
CAT III: dont operate below 200 Kts except TO/LDG 40% less authority than CAT I
Rudder Authority Limiter
Fadeout feature reduces max pilot rudder command >14* AOA CAT I and >3* in CAT III
further reduced when roll rate >20/S
Zero Rudder Authority when >26 AOA CAT I and >15* in CAT III
yaw rate limiter
commands anti-spin controls when >29* but does not function in an inverted deep stall
LG Down G Limit Symmetric
4 Gs / 0Gs
LG in Transit G Limit
2 Gs / 0Gs
G Limit with Centerline or Wing tanks
7 Gs / -2.5 Gs
Acceleration Rolling G Limits
+6 Gs / -1 Gs not protected by FLCS
max bank angle change is ____ for a maximum roll maneuver
360*
Departure with an asymmetric CAT III loading may result in a ______
fast flat (possibly nonrecoverable) spin
Prohibited maneuvers:
intentional spins and departures
repeated max rudder reversals
consecutive 360* max command rolls
max command rolls >1.8 mach and either >3Gs or <35,000’
rudder rolls/rudder assisted rolls >90* with stores on STAS 3,4,6,7
rapid rudder release or reversals above 300 Kts/0.6 Mach
LG and/or TEFs down: flight >15* AOA with stores on STAS 3,4,6,7 or max command rolls of >90* bank change
takeoff set __-__ pitch on ADI and allow aircraft to fly off runway. Do not rush ________ because gear/flap retraction happen simultaneously
8-12
don’t rush gear retraction
Do not operate in ____ <200 Kts
CAT III
maximum gross weight is ______
37,500 lbs
the most aft CG occurs when:
F-16C - 2000 lbs remaining
F-16D - external tanks dry
CG is usually within CG limits if ______
no red zone on AL pointer of fuel gauge
using 11* AOA allows for better pitch control, visibility, sink rate easier to control and will float about _____-_____ feet
800’-1200’
13*AOA landing has better touchdown control, efficient energy dissipation, and floats ____-____
500’-700’
Aerobraking is most effective at ___* AOA
13* AOA
Pitch altitude hold is good +/-____’ up to ______’ when engaged with
100’
up to 40,000’
engaged <2000 fpm
pitch attitude hold is accurate +/-__*
0.5*
heading select rolls ~___* angle with no more than a ___second roll rate and no more than ___ angle of Bank
30* angle
<20/S roll rate
30 max
Roll Attitude hold ____*
+/-1* bank up to 60*
Autopilot inoperative if:
AR switch - OPEN ALt FLAPS - EXTEND LG Handle - DN STBY GAINS light - ON TRIM A/P DISC switch - DISC
Autopilot in ALT HOLD will start to descend at _____ AOA in CAT I and ______ AOA in CAT III
16-19* AOA CAT I
8-10* AOA CAT III
