The pilot’s D/N RMI heading card is normally slaved to the copilot’s HSI heading card. The copilot’s D/N RMI heading card is normally slaved to the pilot’s HSI heading card (if installed). Make sure that the HSI heading cards are calibrated prior to calibrating the (slaved) D/N RMI heading card.
This procedure is for calibrating the Model 242’s resolver or meter movement engine instruments.
Each turn and slip indicator is two meter movement instruments in one. These indicators are calibrated by adjusting trim potentiometers on the backs of the instruments.
VSI calibration requires adjustment of the resolver inside the instrument.
Adjustment of the HSI heading card is performed on the Servo Boards. The pilot’s HSI heading card is adjusted on Servo Board #1; the copilot’s HSI heading card is adjusted on Servo Board #2. The card should indicate accurately to within 3 degrees of aircraft magnetic heading as indicated on the instructor’s station monitor.
Phase circuitry calibration is accomplished by adjusting potentiometers on the Servo Board(s).
The two needles on the D/N RMI are driven by DC resolvers. Each needle is calibrated by rotating a resolver inside the instrument, and should be correct within 3 degrees at all bearing indications.
“Freeze” the simulator. Click on the Location, select the closest Navaid to the new runway.
Occasionally, GISt Maintenance passwords are forgotten or changed by unauthorized users. To reset the GISt Maintenance password:
This article provides some guidelines on cleaning and disinfecting simulators and simulator equipment.