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2 votes
2 answers
589 views

How is RNP's onboard performance monitoring and alerting system represented in the cockpit?

I'm trying to understand what is exactly onboard performance monitoring and alerting system related to RNP. Does it display some extent of deviation or just beeps as alarm? And if that system exists ...
Alexander's user avatar
7 votes
2 answers
622 views

Does RNAV and RNP specify what type of longitudinal accuracy the system has?

I understand RNAV 1 to mean it will be within 1 mile of the desired track 95% of the time, but that is lateral accuracy, what about longitudinal accuracy, in front and behind the estimated position ...
Name's user avatar
  • 944
4 votes
2 answers
2k views

Is baro-VNAV the only possible source of vertical guidance on LNAV/VNAV approach?

As written before, is baro-VNAV the only possible source of vertical guidance on LNAV/VNAV approach? I read somewhere that SBAS is also a possible source, but in that case wouldn’t it be a LPV ...
Konrad's user avatar
  • 2,035
1 vote
0 answers
250 views

Has FAA published any A-RNP STAR or A-RNP / RNP AR DP SID?

After reading FAA's Performance Based Navigation Strategy 2016, I tried to search for already published Departure Procedures of RNP specification. I could only find some that require RNP-1, even ...
Vector Zita's user avatar
  • 1,863
3 votes
1 answer
2k views

Which Navigation Specifications support an RF leg?

I am studying FAA's rules concerning navigation specifications and the utilization of RF legs in an Instrument Flight Procedure. However, I am having trouble understanding if an RF leg is supported by ...
Vector Zita's user avatar
  • 1,863