OPERATIONS MANUAL

Flight Instruments
Pitot-Static Sources:
The forward fuselage is fitted with four pitot-static probes (upper left & right;
lower left & right) and a pair of alternate static pressure ports. An additional
pair of static pressure ports are installed on the aft fuselage. The probes and
ports feed the following systems:
If two ADCs are installed:
UPR L pitot (captain):
ADC L
UPR R pitot (first officer):
ADC R
LWR L pitot (auxiliary 1):
Elevator feel; standby airspeed
LWR R pitot (auxiliary 2):
Elevator feel
UPR L & LWR R static (captain): ADC L
UPR R & LWR L static (first officer): ADC R
Alternate L & R static:
Standby airspeed & altimeter
Aft fuselage L & R static:
Elevator feel
If three ADCs are installed:
UPR L pitot (captain):
ADC L
UPR R pitot (first officer):
ADC R; first officer’s ADC C selection
LWR L pitot (auxiliary 1):
Elevator feel; standby airspeed
LWR R pitot (auxiliary 2):
Elevator feel; captain’s ADC C selection
UPR L & LWR R static (captain): ADC L
UPR R & LWR L static (first officer): ADC R
UPR L & LWR R static (auxiliary 1): Captain’s ADC C selection
UPR R & LWR L static (auxiliary 2): First officer’s ADC C selection
Alternate L & R static:
Standby airspeed & altimeter
Aft fuselage L & R static:
Elevator feel
For details on the elevator feel system refer to chapter Flight Controls.
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