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alternate static source should be used primarily as a drain
valve to restore the original system.
Consult the Pilot's
Checklist for an accurate calibration.
Refer to Section VII
if dual heated static system is installed.
PITOT HEAT SWITCH
When the pitot heat switch is placed in the ON position,
the heating elements in the pitot tube, stall warning trans-
mitter and the main fuel tank vents (on early aircraft) are
electrically heated to maintain proper operation of the sys-
tem during icing conditions.
The switch should always be in
the OFF position while on the ground to prevent overheating
of the heating elements.
On later aircraft, the main fuel
tank vents are flush mounted and require no heaters.
With optional systems installed, actuation of the pitot
heat switch also anti-ices the wing locker tank fuel vents,
angle of attack lift sensor vane, dual pitot heads and dual
static sources.
EMERGENCY EXIT
For emergency exit, the pilot's window (left side) can
be jettisoned.
Pull off the plastic cover over the emergency
release ring under the window and pull the ring to release
the window retainers, then push the window out.
OVERHEAD CONSOLE
The overhead console, see Figure 2-8, includes the
instrument panel light and
control, avionics speaker and
individual pilot and copilot jacks for headphones, micro-
phones and oxygen.
2-34
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