TM 1-1510-225-10
3A-108
1. TCAS Only Push-Button Mode Selector Switch
2. HSI 360 Degree Push-Button Mode Selector Switch
3. HSI ARC Push -Button Mode Selector Switch
4. Enter Switch
5. Navigation Push-Button Selector Switch
6. Range Up Switch
7. Checklist Push-Button Switch
8. Data Input Jack
9. Brightness Control
10. Range Down Control
11. System/Reference Button Test Switch
12. Primary Navigation Sensor System Push-Button Selector Switch
13. Joystick
14. HSI Double Needle Bearing Pointer Source Push-Button Selector Switch
15. HSI Course Select Knob Activation Push -Button Switch
16. HSI Single Needle Bearing Pointer Source Push-Button Selector Switch
17. HSI Course Select Knob
Figure 3A-66. Multi-Function Display Control Unit
The primary purpose of the system is to detect
storms along the flight path and give the pilot a color
visual indication of their rainfall intensity. After proper
evaluation, the pilot can chart a course to avoid these
storm areas.
Figure 3A-67 depicts a typical EFIS weather test
pattern (120 degree scan).
The system performs only the functions of
weather detection or ground mapping. It
should not be used nor relied upon for
proximity
warning
or
anticollision
protection.
Do not turn the radar on within 15 feet of
containers
of
flammable
or
explosive
material.
WARNING
