Questions tagged [rnp]

Use for Required Navigation Performance

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In what situations can LNAV/VNAV minima be higher than LNAV minima, such as RNP Approach to Runway 16 in Corfu?

I recently flew the RNP approach for runway 16 into Corfu. While reviewing the approach charts, I noticed something unusual. The LNAV/VNAV minima is set higher than the LNAV minima for this particular ...
tedioustortoise's user avatar
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What are the equipments that are able to meet RNP specifications?

In recent times onboard the aircraft, what are the equipments that are able to meet RNP specifications?. Many articles that i have read says at present only GNSS (IFR Certified GPS with RAIM or WAAS) ...
Krishna Kanth's user avatar
1 vote
2 answers
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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
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Why do they say PBN is under RNAV?

PBN exists under the umbrella of area navigation (RNAV). [FAA AIM, Section 2. Performance-Based Navigation (PBN) and Area Navigation (RNAV)] As far as I know, RNAV and RNP exist under PBN, and as an ...
rockybear's user avatar
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Why are the altitudes on an RNP IAC shown on the point while for a conventional approach are parallel to the route? Is there an actual difference?

The RNP approach for LGIR runway 27 has the altitudes on some of the points underscored. I had the impression (and I'm afraid I'm wrong) that these are "crossing restrictions" and the ...
Stelios Adamantidis's user avatar
7 votes
2 answers
557 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
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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
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Why is VNAV and LNAV being prohibited with QFE?

737NG AFM says : The use of VNAV or LNAV with QFE selected is prohibited. But what's the reason of this limitation?
cwcauc's user avatar
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The meaning of RNP [duplicate]

I'm a new pilot working toward IFR and learning a lot of the new terms. Since English is not my native language, I was a bit confused what the actual meaning of RNP is. I know that RNP stands for ...
Hot.PxL's user avatar
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Why are SBAS-equipped planes exempt from the preflight prediction check?

My question stems from this other question: Why is training regarding the loss of RAIM given so much more emphasis than training regarding the loss of SBAS? Two answers say losing RAIM puts a question ...
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Why is training regarding the loss of RAIM given so much more emphasis than training regarding the loss of SBAS?

I've noticed a lack of subject matter on the loss of SBAS as compared to RAIM. In the ACS there is mention of RNP, SBAS (WAAS), and RAIM, which are all related, but the available content for RAIM and ...
Ryan Mortensen's user avatar
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1k views

What RNP level is required for an RNP approach if the chart does not specify a value?

RNP (Required Navigational Performance) approaches require the aircraft to monitor the navigation accuracy within a specified limit, called RNP level: There are several different levels of RNP. ...
Bianfable's user avatar
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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
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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
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6 votes
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Which airspace requires what RNP?

How do I know which airspace requires what RNP value? More specifically, can I go from NY to London with just BRNAV providing I stay above the NAT HLA?
Paul's user avatar
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What are the WAAS requirements for RNAV (GPS) approaches?

Is a WAAS GPS required to fly in RNP airspace (e.g., RNAV (GPS) approaches)? Or, can you be approved to fly RNAV (GPS) approaches with, say a military EGI (embedded GPS/INS)?
Avionics_Guy's user avatar
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2 answers
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What is the correlation between RNP level and the CDI indication?

I got a question regarding the connection between RNP (required navigational performance) accuracy and cdi sensitivity of the HSI. According to the instrument flying handbook the standard for RNP on ...
Mani's user avatar
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7 votes
1 answer
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Can crews hand-fly an RNP AR approach in IMC?

Required Navigation Performance (Authorization Required) approaches require multi-crew with special training and strict equipment, similar to ILS CAT II/III. Typically, the aircraft must have at ...
user avatar
10 votes
1 answer
3k views

What is "required navigation performance" or "RNP"?

I understand that this is some sort of on-board navigation monitoring and alerting...what is it used in? Do the Garmin G500s, G1000s, or the G430s use it? Where can you find it? I know nothing about ...
jskypilot's user avatar
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17 votes
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What is a SAAAR / RNP AR instrument approach?

I understand that a SAAAR / RNP AR is a "special" approach and that special approval is required to even get the approach plate, but what exactly is it? Aspen is an example of an airport that has one....
Lnafziger's user avatar
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