STANDBY INSTRUMENTS
Standby horizon
A standby horizon is installed at the main instrument panel. The horizon provides an
indication of aircraft attitude that is independent of AHRS. The horizon is powered when the
BATTERIES switch at the ELECTRIC panel is ON or when either FUEL lever is open. The
gyro reaches operational speed approximately one minute after power has been applied.
Standby compass
A magnetic standby compass is installed at the lower end of the overhead panel. The
compass provides aircraft magnetic heading at all times. Deviation correction cards are fitted
at the ceiling just above the sliding windows. A compass light switch is provided for integral
lighting of the standby compass.
Standby altimeter
For aircraft equipped with air data system type I, II, IV, V and VI
A standby altimeter is installed at the captain instrument panel. The altimeter shows altitude
in feet. Altitude information is derived from the pitot-static system.
Standby airspeed indicator
For aircraft equipped with air data system type I, IV, V and VI
A standby airspeed indicator is installed at the captain instrument panel. The indicator shows
indicated airspeed (IAS) in knots. Airspeed information is derived from the pitot-static system.
Fokker 50 - Flight Navigation Instruments
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