How to uncage back-up ADI

[kashmir]

Alright...I'm ready to receive my verbal barrage.

 

I can't figure out how to uncage the back-up ADI. When I scroll on the knob I can adjust the artificial horizon reference. When I left click the button presses but nothing happens. I have also tried turning while pushing the knob with no luck.

 

What's the trick?

[escaner]

Turn on that switch (CAP SEC or something similar) next to the ANÉMO in the right console first.

 

Sent from my HM 1S using Tapatalk

[BlaizzMC]

Right side of the PSM, switch must be on the vertical position,

then on your back-up ADI, switch bottom right

Edited December 12, 2016 by BlaizzMC
psm instead of pcn

[myHelljumper]

Right side of the PCN, switch must be on the vertical position,

then on your back-up ADI, switch bottom right

 

PCN is the panel just below the alarm one, you must be talking about the PSM panel.

[BlaizzMC]

PCN is the panel just below the alarm one, you must be talking about the PSM panel.

 

That's right ! Edited it

[myHelljumper]

:thumbup:

[kashmir]

Thanks, gents! What does the third position do? My HUD says "Horizon Secours" when I have it in the third position.

[BlaizzMC]

Thanks, gents! What does the third position do? My HUD says "Horizon Secours" when I have it in the third position.

 

I don't know.. but horizon secours means back-up horizon. Maybe the hud use a backup horizon ?

[PiedDroit]

I don't know.. but horizon secours means back-up horizon. Maybe the hud use a backup horizon ?

This has been stated somewhere in this forum, iirc backup ADI has it's own gyro, and HUD is using it instead of the SEC mode of INS.

 

edit: found it:

Hmm. I don't know about the heading. I'll check on that. But at this time you can't. If it should do that, then I will make the change.

 

There is an AUX CAP switch by the TACAN. It is a 3 position switch.

A (Off) - AUTO - MAN

In Auto, it automatically connects an independent magnetic gyro to provide attitude and heading data to all INS controlled instruments in case of INS failure.

in Man, it overrides the INS and sends attitude and heading data to the INS controlled instruments.

 

INS controls the following instruments:

- HUD

- VTB

- Main ADI

- HSI

 

Aux ADI has its own independent gyros and can only provide attitude not heading.

 

When the AUX CAP is sending signals to the instruments an HORIZON SECOURS warning will appear in the HUD.

Edited December 13, 2016 by PiedDroit

[kashmir]

Awesome! Thank you!