Litton INS - LTN-72RH

[Wodrick]

Originally Posted by baigar

Probably you remember whether you often encountered failures in these systems? Not often, pretty reliable
I guess the navigation computer calculated a mean/most probable position from the input of the three drifting INS systems? You get ahead of the technology ! Each INS fed the on-side flight director/ Autopilot with a simple switch NAV/INS. either side could be selected to the alternate.
Perhaps it is to long ago to remember how much miles they have been off position after e.g. crossing the atlantic?

I might be confusing other systems, trans Atlantic up to eight miles or so. Could often be less. When they got to a consistent 20 miles or so time to change INU. In my company it was a Tech Log note INS Drift #1,#2,#3.