Learjet 35A ILS Approach

[Deltaair1212 53]

I am using the standard GNS 530 version of the Learjet. Tonight I tried to set up my ILS for runway 12 at KBZN. The frequency is 109.30, and the Course heading is 123. I plugged in both figures correctly. The frequency went into my NAV1 radio on the pedestal, and in the GNS 530 as well. The course I bugged with the course knob. Whenever the time came I flipped the CDI into VLOC mode and then hit the GS button. The Learjet never captured the localizer or the GS. Did I do something backwards? The Red GS flags did disappear but nothing else happened.

[Airbus 14]

Just a guess; but did you arm NAV mode on the AFCS?

[Deltaair1212 53]

6 minutes ago, Airbus said:

Just a guess; but did you arm NAV mode on the AFCS?

Well I thought I did. Now that I think about it, I probably didn’t... I was in HDG mode. Hmmm, I’ll do another ILS tomorrow and make sure the NAV is selected and post my results. Thanks!

[sloppysmusic 236]

I use the GTN 750 but surely you need to arm GS as well as NAV? Works fine for me every time just make sure you are beneath glidescope when arming GS. 

Don't forget the GNS is just a NAV aid not an autopilot at all. The plane needs to be told how to follow it using main panel switches. NAV is lateral only and GS is vertical only.

Edited January 3, 2019 by sloppysmusic