TM 1-1520-240-102-5-6 2-5-18. Command Select Switch.The CMD SEL switch is on the pilot and copilot HSIMODE SELECT panel (Chapter 3). The switches areused to select the HSI which will provide the refencedheading when the HDG switch is engaged. Only oneCMD SEL switch may be selected at a time. If the otherCMD SEL switch is selected during heading select op-erations, the HDG switch on the AFCS panel will disen-gage and heading select will be disabled until the HDGswitch is again pressed. When selected, the SEL legendon the switch illuminates.Figure 2-5-4. Forward and Aft Cyclic TrimIndicators
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