LANDING GEAR WARNING
SYSTEM
The landing gear warning system is provided
to war n the pilot that the landing gear is not
d ow n a n d l o c k e d d u r i n g s p e c i f i c f l i g h t
regimes. The war ning hor n will sound con-
tinuously when the flaps are lowered beyond
the APPROACH (30%) position, regardless
of the power lever setting, until the landing
gear is extended or the flaps are retracted.
Although the landing gear war ning system
is affected by the flap position, this subject
is discussed more completely in the LAND-
ING GEAR section of this training manual.
FLAP AIRSPEED LIMITS
Airspeed indicator (Figure 15-5) markings
show the maximum speeds and operating
range of the flaps V
FE
). The white APP in-
dicates maximum flaps-to or at-approach
speed. The white DN indicates the maxi-
mum speed permissible with flaps extended
beyond APPROACH. Approach speed is 184
K I A S . B eyo n d A P P ROAC H p o s i t i o n , t h e
maximum speed is 148 KIAS.
Lowering the flaps will produce these results:
• Attitude—Nose up
• Airspeed—Reduced
• Stall speed—Lowered
• Trim—Nose-down adjustment
required to maintain
NOTE
All illustration needles may not re-
flect nor mal indications.
RUDDER BOOST
SYSTEM
A rudder boost system (Figure 15-6) is pro-
vided to aid the pilot in maintaining direc-
tional control in the event of an engine failure
or a large variation of power between the en-
gines. Incor porated into the r udder cable
system are two pneumatic rudder-boosting
servos that actuate the cables to provide rud-
der pressure to help compensate for asym-
metrical thrust.
KING AIR C90GTi/C90GTx
PILOT TRAINING MANUAL
15-4
FOR TRAINING PURPOSES ONLY
15
FLIGHT
CONTROLS
Figure 15-5. Airspeed Indicator
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