[EE] IDN showing an incorrect heading value vs HUD & F10map?

[Hez]

So this was just after some very initial testing on a multiplayer server (Enigma's server, running the Syria map).

Used ALCM to align before swapping to NAV, as well as doing my normal gyro alignment (CAP) prior to any moving.

Everything seemed fine, but in the air, my HUD seemed to show the correct magnetic bearing, as normal. But the EE's IDN was showing ~5 less than it should have been. There is a new True/Magnetic switch on the IDN. However, when I tried using that, the EE's IDN was showing ~10 less than my HUD.

It seems almost as if the IDN heading has been accidently biased the wrong way. Instead of 150 (as shown on my HUD and shown as my magnetic heading on the F10 map view) the IDN was showing ~145. When I tried swapping modes between True/Magnetic it switched to ~140.

So I'm not sure if my alignment somehow was messed up (But my HUD was fine?) or if there is just some minor maths mess up somewhere?

Edited January 27, 2023 by Hez
added map

[IvanK]

What does the STBY compass indicate ?

[fausete]

Hi! ALCM works with the previous memorised heading, if it was not right (say if Enigma is not using the 'INS always right at start option' or the aircraft was moved with the INS not in NAV mode) then the end result won't be right. In any case, there's some issues in the alignment we're ironing out.

[Hez]

I've since not seen the same issue reappear - It was most likely a mess up on my part somehow and I was too quick to write it up as a post rather than do some further testing first - Apologies! Marked as solved.