Aerocruze 100/TruTrak Question

[SoCal 182 Driver]

Assume I'm flying an RNAV approach. I've got the Aerocruze 100 set for GPSS, and the RNAV approach loaded into the GPS. As I enter the approach course, I'm above the glide slope, and the autopilot goes from "ARM" to "FLAG."

Once the autopilot goes to "FLAG," can I still have the autopilot handle lateral guidance, while I manually hand-fly altitude? If so, what do I need to do with the autopilot to allow me to hand-fly altitude while it handles lateral guidance. As I "RTFM," it seems that the best way to handle this would be to switch the autopilot to TRK mode (assuming I'm on the approach course), and then hand fly the altitudes, but I'd appreciate hearing others' thoughts, comments and suggestions.

Thanks!

 

[Jesse Saint]

It is possible to put a switch to disable altitude, but it’s not approved by the STC. You would have to adjust the altitude to altitude preselect and select a vertical speed.

 

[SoCal 182 Driver]

You would have to adjust the altitude to altitude preselect and select a vertical speed.

I thought I tried that, and it would not get out of "flag" mode. I'll try it again.

 

[Jesse Saint]

It needs to be below the gludeslope to change from Flag to Arm.

 

[SoCal 182 Driver]

It needs to be below the gludeslope to change from Flag to Arm.

I've found that once it goes from ARM to FLAG, it won't go back to ARM, or go to CPLD, simply by getting below the glide slope. My experience has been that once it goes to FLAG, it won't change.

 

[Jesse Saint]

I’m not sure on this. Technically, it goes to Flg every time before it goes to Arm. It just changes so fast that you only see a flicker of Flg before it goes to Arm. Once it sees itself above the glideslope, Flg stays on. You may need to toggle mode twice to retry the Arm once below the glideslope.