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ABRIS heading isn't from GLONASS but from INU.... Non sense!


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ABRIS uses the GLONASS navigation system based on a satellite constellation to navigate. It is a Finnish civilian navigation computer added temporarily during the design of the Kamov prototypes.

The Kamov's navigation instruments, the compass and the PVI are based on the inertial unit.

Why, when the inertial unit is not aligned or not reset (INU heading is "incorrect"°, that of the ABRIS is also wrong?

Why does the heading of the ABRIS always seem perfectly aligned with the heading of the inertial unit?
Why is the Abris, which is a navigation system completely independent of the inertial unit, erroneous if the alignment or recall of the INU is not done?

Normally, ABRIS could almost be used to manually realign the heading, if necessary, for example. The INU's problems should never impact the course set by ABRIS. However, it is obvious that the ABRIS information is based not on GLONASS but on the INU, since the precision errors of the INU are also passed on to the ABRIS, that the non-alignment of the INU gives a totally wrong course on the ABRIS...

Can we make these 2 systems independent?

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