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INS is much more than a backup. In the days before GPS it was the primary source of navigation crossing large bodies of water. Of course this meant aircraft coa
by VBprogrammer 8y ago
INS is much more than a backup. In the days before GPS it was the primary source of navigation crossing large bodies of water. Of course this meant aircraft coasted in a few miles off of there actual course. It can generally be updated using DME-DME fixes and from VOR fixes, all of which it does automatically. I believe some short haul operators are now specing there aircraft without INS but as far as I know that's an exception rather than the rule.
- eisa01 8y agoDropping INS is short-sighted, as GPS can be jammed. Russia has been jamming GPS signals in northern Norway during different military exercises [1]. Russia has denied this, but the foreign ministry has started to share the proof of this with them, [2, Norwegian only] [1] https://thebarentsobserver.com/en/security/2019/01/norway-tired-russian-military-gps-jamming-unacceptable-and-risky https://thebarentsobserver.com/en/security/2019/01/norway-ti... [2] https://www.vg.no/nyheter/innenriks/i/K38ee7/ud-har-gitt-russland-gps-bevis?utm_source=vgfront&utm_content=row-1 https://www.vg.no/nyheter/innenriks/i/K38ee7/ud-har-gitt-rus...