User manual

Page 42

Aircraft Operation Manual

Piper Cheyenne I, IA, II, IIXL

For ight simulation use only

Cockpit Instruments - Copilot panel

Attitude Direction Indicator

1: Caging knob

2: Instrument INOP ag

3: Attitude bars adjustment knob

The caging knob (1) locks the horizon in a centered position to

prevent damage to the gyroscope in case of severe turbulences.

KI 525A Horizontal Situation Indicator (HSI)

1: OBS control knob

2: heading control knob

3: NAV warning ag

4: HDG warning ag

5: CDI - course deviation indicator needle

6: Heading bug

7: Glideslope Indicator

RMI-30 Radio Magnetic Indicator

1: VOR1 / ADF1 indicator needle

2: VOR2 / ADF2 indicator needle

3: VOR1 / ADF1 selector

4: VOR2 / ADF2 selector

5: HDG Warning Flag: Indicates a failure of the gyro compass.

This usually results from the inverter not powering the gyro.

Course and heading information are supplied to the RMI by the

gyro compasses. Inverter power is needed to operate the gyros

(for proper operation check inverter and bus tie switches).