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Forum: Tech Log

9th Jan 2022, 07:50

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

Case is "solved"

Yes, there are limitations listed in the AFM, in general Above/Below N/S 70. We do not operate above those latitudes at the moment, but we probably will, there is also a Supplement to the AFM which...

Forum: Tech Log

8th Jan 2022, 17:51

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

:D Funny, I was thinking the same! But...

:D Funny, I was thinking the same! But unfortunately, there is no such option.

Forum: Tech Log

8th Jan 2022, 14:01

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

The exessive drift occurs in DG-Mode.

The exessive drift occurs in DG-Mode.

Forum: Tech Log

7th Jan 2022, 21:21

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

Hi again, Well, that is my question. 1-2...

Hi again,

Well, that is my question. 1-2 degrees of drift per minute seems to be exessive to me.
My old Piper drifted 15 degrees per hour at N55.

When the gyro is in slaved mode, and the...

Forum: Tech Log

7th Jan 2022, 17:07

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

Hi EXDAC, Well, there is no use in having a PFD...

Hi EXDAC,
Well, there is no use in having a PFD 2 with a heading discrepancy of more than 10 degrees within a couple of minutes of a sync, in darkness and full IMC.
But perhaps I was not clear...

Forum: Tech Log

7th Jan 2022, 17:01

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

Hi Vessbot, In normal "slaved mode" it takes...

Hi Vessbot,

In normal "slaved mode" it takes magnetic input from its own fluxmeter in the tail of the AC.
When in DG-Mode (Directional Gyro Mode), it is my understanding that there are no active...

Forum: Tech Log

6th Jan 2022, 18:38

Replies: 13

AHRS Directional Gyro drift

Views: 2,399

Posted By dcoded

AHRS Directional Gyro drift

Hi all,

I am currently operating on a PC-24 on high northern latitudes and we are having problem with heading disagrees between PFD 1 and 2.
The Pilatus company decided to build an aircraft with...

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