required navigation performance
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RNAV1Federal Aviation
AdministrationJuly 14, 2008
GENERAL RNAV
RNP DME-DME
WAAS
RNAV Main Menu
Presented to:
By:
Date:
Federal AviationAdministrationAREA NAVIGATION
(RNAV)
Section 2,
Required Navigation Performance (RNP)
Flight Inspection Crewmembers
AJW-3310
July 14, 2008
RNAV3Federal Aviation
AdministrationJuly 14, 2008
RNP Introduction
• Required Navigation Performance (RNP) is defined by ICAO as "a statement of the navigation performance necessary for operation within a defined airspace".
• Part of a broader concept called "Performance-based Navigation“:– RNP is a method of implementing routes and flight paths that
differs from previous methods in that not only does it have an associated performance specification that an aircraft must meet before the path can be flown but must also monitor the achieved performance and provide an alert in the event that this fails to meet the specification.
RNAV4Federal Aviation
AdministrationJuly 14, 2008
RNP Introduction
• It is the monitoring and alerting facility that distinguishes RNP from RNAV (Area Navigation) from which it developed.
• RNP equipped aircraft can safely operate routes with less separation than previously required which is significant because it increases the number of aircraft that can safely use a particular airspace and therefore accommodate the increasing demand for air traffic capacity.
RNAV5Federal Aviation
AdministrationJuly 14, 2008
RNP Introduction
• RNP is a statement of the navigation performance accuracy necessary for operation within a defined airspace.
• Stated as a number in nautical miles.• Specifies how “tight” the avionics must
contain Total System Error (TSE).• Applies to NAV performance; includes the
capability of the NAV system and aircraft equipment.
RNAV6Federal Aviation
AdministrationJuly 14, 2008
RNP Introduction
• AC RNP capability varies per AC equipment and navigation infrastructure.
• RNP levels address obstacle protection per RNP accuracy values; determines primary obstacle area .
Presented to:
By:
Date:
Federal AviationAdministrationRequired Navigation
Performance (RNP)
Approaches
Flight Inspection Crewmembers
AJW-3310
July 14, 2008
RNAV8Federal Aviation
AdministrationJuly 14, 2008
RNP Approaches
• Allow for more efficient routings.• Decision Altitude (DA) as low as 250 ft
above touchdown.• Allow for “Radius-to-Fix” paths.• Non-published approaches to be
commissioned (previously LNAV - VNAV, LPV, and now RNP), are loaded into the FMS either by hand, or electronically.
RNAV9Federal Aviation
AdministrationJuly 14, 2008
RNP Approaches
• RNAV procedures may be coded with an office computer/ software, placed on media, and uploaded into the FMS.
• The LNAV, LNAV-VNAV, and the RNP RNAV approaches are selected in the FMS as VFR approaches.
• The LPV is the ‘ONLY’ approach referred to as GPS WAAS System (GWS) in the FMS.
RNAV10Federal Aviation
AdministrationJuly 14, 2008
RNP Approaches
• The approach segments will be discussed in sequence. – Enroute– Terminal– Final– Missed Approach
• The transitions are identical to the LNAV-VNAV “approach building” in the FMS.
RNAV11Federal Aviation
AdministrationJuly 14, 2008
RNP Approaches
FMS Arrival Segments• Parameters within the FMS change depending on
the phase or mode of flight, and changes between flight modes activate certain actions.
• There are three arrival segments:– Enroute (RNP of 2.8)– Terminal (RNP of 1.0)– Approach (RNP of 0.3)
• Special Aircraft & Aircrew Authorization Required (SAAAR) (RNP < 0.3)
RNAV12Federal Aviation
AdministrationJuly 14, 2008
RNP Approaches
• Navigation Sensors– The GPS sensor is used to provide
navigation guidance for the RNP approach.
Presented to:
By:
Date:
Federal AviationAdministrationRequired Navigation
Performance (RNP)
Flight Inspection Procedures
Flight Inspection Crewmembers
AJW-3310
July 14, 2008
RNAV14Federal Aviation
AdministrationJuly 14, 2008
Flight Inspection Procedures
• Inspect RNP RNAV approaches per the General RNAV, TI 8200.52, Chapter 13, Section I procedures
• Use the following guidance, procedure design, and obstacle clearance criteria:– FAA Order 8260.51, U.S. Standard for RNP
Instrument Approach Procedure Construction – FAA Order 8260.52, U.S. Standard for RNP
Instrument Approach Procedures with Special Aircraft and Aircrew Authorization Required (SAAAR).
RNAV15Federal Aviation
AdministrationJuly 14, 2008
Obstacle Verification
• When containment obstacle verification is required:– Fly a 2xRNP (containment limit) offset each side of
centerline.– Fly in the intended direction of the procedure.– Program the offset as a route or approach in the
FMS.– Assign altitudes to the offset WPs as required for the
vertical profile.
RNAV16Federal Aviation
AdministrationJuly 14, 2008
RNP SIAP
RNAV17Federal Aviation
AdministrationJuly 14, 2008
GENERAL RNAV
RNP DME-DME
WAAS
RNAV Main Menu
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