BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 441

Standby Instruments Pitot and Static
Selectors
In normal operation, the STANDBY INSTR
pitot and static selector valves are in the PITOT
and STATIC NORMAL positions. Setting the
STANDBY INSTR selector valves to CLOSED
shuts off the pitot and static sources to the
standby instruments (Figure 16-26).
Total-Air-Temperature Probe
The TAT probe contains two temperature-
sensitive resistors that vary with temperature
changes. As the temperature changes, the
TOTAL AIR
TEMPERATURE
PROBE (TAT)
Figure 16-26. Standby Selectors and TAT Probe
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
CL-600-2B16 PILOT TRAINING MANUAL
resistance changes value to provide tempera-
ture signals to the respective DADC 1 and
DADC 2. Static air temperature (SAT) and
TAT readouts displayed on the advisory dis-
play. The CPL selection on the flight guidance
controller determines which DADC is pro-
viding the SAT/TAT indications.
Air Data System
The pitot-static system inputs information
into the air data system DADCs. The DADCs
provide the flight guidance computers with
altitude hold, airspeed, vertical speed, and
Mach number control functions.
STANDBY
INSTRUMENT
SELECTOR
STANDBY STANDBY
INSTR. INSTR.
PITOT STATIC
NORMAL NORMAL
SELECTOR SELECTOR
VALVE VALVE
CLOSE CLOSE
STANDBY
INSTRUMENT
PITOT STATIC
SELECTOR
VALVE VALVE
CL 601-3A/R 16-29
L t é e
L t d .