Advanced RNP

Rotorua

Auckland

What is RNP? • RNP = RNAV + Performance Monitoring / Alerting

• Enhanced monitoring -> Enhanced pilot awareness -> Reduced obstacle clearance

What is Advanced RNP? • RNP = RNAV + Performance Monitoring / Alerting

• Enhanced monitoring -> Enhanced pilot awareness -> Reduced obstacle clearance

• Can apply to all flight phases.

What is Advanced RNP? • RNP = RNAV + Performance Monitoring / Alerting

• Enhanced monitoring -> Enhanced pilot awareness -> Reduced obstacle clearance

• Can apply to all flight phases.

• Similar to RNP AR. Lower Nav spec, but…

What is Advanced RNP? • RNP = RNAV + Performance Monitoring / Alerting

• Enhanced monitoring -> Enhanced pilot awareness -> Reduced obstacle clearance

• Can apply to all flight phases.

• Similar to RNP AR. Lower Nav spec, but…

• Less stringent requirements for crew training, operational procedures and onboard equipment

Potential Benefits to Operators

• Greater flexibility for Procedure designers to handle terrain constraints.

• Ability to optimise airspace usage.

• Shortened track miles.

• Vertical Guidance - > Lower minima and statistically safer.

What about the regions?

• Emerging navigational capability for turboprop airliners.

• This will result in some regions gaining A-RNP approaches, as and when the operator demand dictates.

• Operators may have the ability to fly these procedures, depending on the equipment and software revisions installed.

An Example - NZPM

An Example - NZPM

An Example - NZPM

An Example – NZPM (Concept only)

Design Limitations

• No RF turns from FAF to Final Missed Approach

• Minimum RF turn radius of 2 * RNP value

• Maximum Bank Angle in RF turns of 25°

• 45° limit on RF turn angle when connecting to FAF

Challenges

• Airspace design considerations

• High Nav accuracy -> Less variation in flightpaths -> Community noise issues

• Managing multi-mode operations (ie traditional RNAV approaches and A-RNP simultaneously)

Questions?