GS Functionality issue

[fleurenf]

Hi Team,

I love flying the B733 but I'm having a hard time getting the aircraft to capture the GS.

 I'm on perfect approach with ILS frequency set, The GS marker reaches descend point but it just keep moving down. APP has been activated.

Anyone else is having this issue? I'm not sure what I'm doing wrong. Maybe I'm missing a step in the procedure somewhere.

[mjrhealth]

See this post. I do think you need to tune both nav radios to ils

 

[Litjan]

7 hours ago, mjrhealth said:

See this post. I do think you need to tune both nav radios to ils

 

No you don´t.

[fleurenf]

15 hours ago, mjrhealth said:

See this post. I do think you need to tune both nav radios to ils

Thanks @mjrhealth I always do set both to the ILS frequency but no change. There must be a step or procedure that I'm missing out on as this is a Classic aircraft afterall.

 

8 hours ago, Litjan said:

No you don´t.

@Litjan, thanks for your response. What am I doing wrong in that case?

[Litjan]

6 hours ago, fleurenf said:

 

@Litjan, thanks for your response. What am I doing wrong in that case?

Is the autopilot you are using on the same side as the ILS receiver you have set up? The 737 distinguishes between "masters" for the autopilot and flight-director system, you will see a small MA light up on the side that is "master". 

The "master" side has to be the one that has the ILS tuned - for example if autopilot A is on, but the ILS is set up on the first officers side, it won´t "capture" (but it also won´t capture the LOC, so this is probably not your problem).

Edited 10 hours ago by Litjan

[fleurenf]

2 hours ago, Litjan said:

Is the autopilot you are using on the same side as the ILS receiver you have set up? The 737 distinguishes between "masters" for the autopilot and flight-director system, you will see a small MA light up on the side that is "master". 

The "master" side has to be the one that has the ILS tuned - for example if autopilot A is on, but the ILS is set up on the first officers side, it won´t "capture" (but it also won´t capture the LOC, so this is probably not your problem).

Thanks for your response @Litjan, I have tuned ILS on both receivers. I just tried again and it started the approach alright but than it lost it. Can you provide some point to point instruction for the correct procedure? That would be greatly appreciated.

[Litjan]

1 hour ago, fleurenf said:

Can you provide some point to point instruction for the correct procedure?

It sounds like you are doing everything right - there is really not much to it. There are several tutorial videos here:

https://youtube.com/playlist?list=PLGRsg_6rB1D6f7lKjdw5r9P99swJtryhQ&si=t3vEGmLMysqJ3zHE

If you "lose" your tracking, it could be that your joystick is noisy or spiky, deflecting the joystick carries the risk of disengaging the autopilot. It should come with aural and visual warnings, though. If that happens, you can increase your Joystick Deadzone in the preferences, so that a slight "jitter" will not disconnect the AP.