15-21
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP
PILOT TRAINING MANUAL
FlightSafety
international
Controls and Annunciations
Figure 15-17 shows the controls and an-
nunciations on the main instrument panels
associated with the stall warning and iden-
tification system.
System faults are indicated on two groups of
amber annunciators, one per pilot.
Three STALL switches are located in the TEST
section of the roof panel (Figure 15-18).
Anti-icing heating of the airflow sensor vanes
is controlled from the PITOT/VANE HEAT
switches (Figure 15-18).
Indication of vane heater failure is provided
by the two amber L and VANE HTR FAIL an-
nunciators also on the roof panel and by the
ICE PROT
↑
repeat annunciator on the MWS
panel (Figure 15-18).
There are no control switches. The stall warn-
ing part of the system becomes armed on take-
off (no weight-on-wheels), while the stall
identification part of the system becomes
armed 6 seconds after takeoff.
SYSTEM DESCRIPTION
Refer to Figure 15-19 for a schematic of the
system in normal conditions.
The system has two channels for stall warn-
ing and identification and a third channel
which provides stall identification output only.
Normal function of the complete stall warn-
ing and identification system is shown in the
flow charts presented in Figure 15-20.
PITOT/VANE HEAT
ON
OFF
L
R
# VANE
HTR FAIL
Figure 15-18. System Test and Anti-icing
Control and Indication
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