KAP-150 and coupled approaches

[gsengle]

Quick question - I think I've just about mastered my KAP-150 autopilot, but have one thing I'd like to confirm, and imagined that many here would have the answer.  If I'm flying an ILS or say LPV approach, and I've captured the localizer outside the FAF and am in approach mode and in alt mode, having leveled off prior to the FAF, does the autopilot care if im in alt mode or not?  Will glideslope capture automatically disengage altitude hold?  Does the alt mode matter at all?

thanks!

Greg

[mooney231]

Quote: gsengle

Quick question - I think I've just about mastered my KAP-150 autopilot, but have one thing I'd like to confirm, and imagined that many here would have the answer.  If I'm flying an ILS or say LPV approach, and I've captured the localizer outside the FAF and am in approach mode and in alt mode, having leveled off prior to the FAF, does the autopilot care if im in alt mode or not?  Will glideslope capture automatically disengage altitude hold?  Does the alt mode matter at all?

thanks!

Greg

[thinwing]

One more caveat...even though you have captured the localizer ,if you were vectored "high"on the approach and in alt mode...glide scope capture wont occur if glidescope is at full scale deflection even though its commanding down"command at the time of capture...you would have to command with the alt ,verticle speed mode down until half scale deflection than gs capture occurs.If you are vectored low,than glide scope capture occurs some place down the approach path...but if high..and in alt mode,you never reach half scale so no capture...kp couch