Originally Posted by
DOUBLE BOGEY
The IFR /VFR arguments are a red herring when taken in the wider context of the average mission profile, that is, to descend in IMC to a target.
My comments above are more concerned with IMC / VMC conditions & the "how to" rather than the rules governing such. Yes, the correct use of the radar, should form a very important part of the picture, but it should be cross-checked with
all other available data sources. The advent of reliable, GPS based navigation systems, allows for RNAV only IMC letdowns, which should then complement radar return information. I would be concerned if, during an ARA, the rig GPS location was not where the radar was painting a target, & visa versa.