Originally Posted by Islander2
Many on these forums have disagreed. Indeed, it has been observed that some UK GA aeroplanes have CAA-approved Flight Manual Supplements for GPS installations that meet RNP5 airspace (BRNAV) primary navigation requirements.
In a thread on a different topic, Formation Flyer asked:
Formation Flyer, it would be really useful if you could answer this question in respect of your own contentious assertion.
Quite. Here goes.
AIC 93/2002 Pink 41.
Agreed it is accepted for PRNAV and BRNAV airspace (although BRNAV is FL100+ typically if I recall - although I havent read up on where it is defined).
The VAST majority of pilots not flying heavies or pub transport, will not be flying in such airspace and therefore the other rules apply which are that GPS is not approved to replace convential navigation techniques and is accepted as a 'supplemental aid'.
Additionally flying instrument approaches based on GPS when the approach is based on a radio aid is not allowed.
and so on.
Hope that helps!
FF