Primary Flight Instrument Cluster
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This is the central core of the A-10C’s flight instrumentation system. It provides the pilot with continuous feedback on the aircraft’s flight attitude, altitude, climb rate, airspeed, navigation heading, and radar threat awareness. These analog instruments act as the pilot’s primary situational awareness tools—both during normal flight and as backups in case of MFD or HUD failure.
Instruments Overview (Top to Bottom, Left to Right)
Function: Displays radar emitters detected around the aircraft, including tracking and missile launch signals.
Indicators: Threat direction, type, and priority (flashing when lethal).
Type: Circular CRT-style radar display.
INT knob (intensity – rotary potentiometer).
GUN READY indicator light (green LED).
Function: Displays climb or descent rate in thousands of feet per minute.
Scale: -6,000 to +6,000 ft/min.
Type: Analog gauge (servo or stepper-driven).
Controls: None.
Function: Shows aircraft speed in knots (KIAS).
Range: 0–500 knots.
Type: Analog gauge (servo or stepper-driven).
Controls: None.
Function: Displays aircraft pitch, roll, and flight director information.
Type: Electro-mechanical gyro (in simulation: servo-driven or LCD-rendered).
Pitch adjustment knob (rotary potentiometer).
Cage knob (momentary pull).
Function: Displays aircraft altitude in feet above sea level.
Scale: 0–50,000 ft.
Sub-display: Barometric pressure setting (inHg).
Type: Analog gauge (servo or stepper-driven).
Barometric pressure knob (rotary potentiometer).
Function: Combines heading, navigation, and course information.
Features: Compass card, course pointer, deviation bar, and distance counter.
Type: Electro-mechanical gyro or digital compass simulation.
Heading Set knob (rotary encoder).
Course Set knob (rotary encoder).