PITOT-STATIC SYSTEM
GENERAL
The pitot-static system serves the computers
of the air data system, standby altimeter,
standby airspeed indicator, cabin pressuriza-
tion system, and stall warning and identifica-
tion system. Provision is made for the addition
of optional equipment. Pitot supplies to the
stall detectors and additional equipment can
be isolated by manual selection.
Two pitot heads provide impact air pressure,
four static vent plates provide static air pres-
sure, and two wing vents provide stall vent air
pressure. Water traps and drains are provided
in the pipelines. The pitot heads and forward
static vent plates are heated to prevent icing.
The forward static plates are heated in the air
only. The pitot-static and stall vent systems are
shown in Figure 16-1.
PITOT HEADS
The pitot heads are mounted on each side of
the fuselage nose (Figure 16-2). They provide
independent supplies as follows:
• Left pitot head (P1)—No. 1 air data
computer
• Right pitot head (P2)—No. 2 air data
computer, standby airspeed indicator,
stall detectors, and additional equip-
ment, if connected
Both pitot heads are electrically heated. Pitot
heat is controlled by two PITOT/VANE HEAT
L and R switches on the roof panel in the ICE
PROTECTION group (see Chapter 10, “Ice
and Rain Protection,” for additional informa-
tion). Water traps and drains are provided in
the pipelines.
STATIC VENT PLATES
Front and rear static vent plates are mounted on
each side of the fuselage nose (Figure 16-3). Two
static vents are provided in each front plate and
two in each rear plate. The vents, numbered for
reference, are interconnected as shown in Figure
16-1. Four static air pressure sources are thus
provided to supply the following:
• Static 5—No. 1 air data computer
• Static 6—No. 2 air data computer and
stall detectors
• Static 8—Standby altimeter and standby
airspeed indicator
• Static 9—Cabin differential pressure in-
dicator and optional equipment, when
connected
The front plates are electrically heated when
airborne only and controlled by the right
PITOT/VANE HEAT switch.
16-2
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP
PILOT TRAINING MANUAL
FlightSafety
international
Figure 16-2. Pitot Head
Figure 16-3. Static Vent Plate
Summary of Contents for 800 XP
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