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8th September 2011 | 20:27

#11 (permalink)

FlightPathOBN

Joined: Mar 2011

Posts: 1,407

Likes: 0

From: engineer at large

RAIM is needed for RNP. Depending on RAIM availability, the FMS can degrade from .1 to .3, and sometimes .3 is NA...

there are several sites which predict RAIM availability...

GPS Availability - Operations Based NavigationOperations Based Navigation

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