ABRIS before 1994 (no GNSS) question

[tn_prvteye]

Is the ABRIS map supposed to update using INS if GNSS isn't available?  Because right now it isn't.  However, I always cheat and use No alignment or fix-taking needed...so maybe that's the issue?

Or does it absolutely require a GPS signal to function?

[Laser9]

are far as im aware abris requires gps but ive never tested it

[Weta43]

25 minutes ago, Laser9 said:

are far as im aware abris requires gps but ive never tested it

It requires GLONASS (Not the US GPS) which should have limited availability (Russia & Environs) from 82, and full availability by 1995:

Quote

Beginning on 12 October 1982, numerous rocket launches added satellites to the system until the completion of the constellation in 1995

Then it gradually lost coverage until it was re-prioritised:

Quote

In 2001, after a decline in capacity during the late 1990s, the restoration of the system was made a government priority, (...)  In October 2011, the full orbital constellation of 24 satellites was restored, enabling full global coverage

 

[Akiazusa]

It works like a more advanced NS430,so GNSS is required,it talk and exchange some data from some aircraft systems,but mainly datalink and combat stuff,sadly I guess INS position is not one of them.

The best thing u can do is set ABRIS heading from true to mag in the option page,so it still shows ur heading on it.  correction:ABRIS true heading is from Doppler Nav System,doesn't require GNSS,if DNS fails it will revert using flight gyro(HSI heading)

 

Edited August 28 by Akiazusa

[Kang]

It's a bit of a speculative point, seeing how the Ka-50 entered service only in 1995.