Performance Based Navigation Flashcards
PBN comprised of which 3 components?
1 navigation specification
- Navaid infrastructure
- Navigation application
Performance-based navigation (PBN)
The term used to describe a performance-based system with more reliance on satellite-based technologies for navigation
Minimum Operating Network supports what
Reduced ground based navigation and procedures
Two kinds of navigation Specification:
RNAV Specification and RNP Specification.
Key difference being RNP requires on board performance monitoring and alerting (OBPMA)
On board performance monitoring and alerting OBPMA
Required for RNP , not for RNAV
Navigation Application
Making use of Navigation specifications (RNP and RNAV) together with navaid infrastructure to achieve performance Based navigation
EG.
Routes based on RNP and RNAVspecifications- and relying on navaid infrastructure
Sids/STARS based on RNAV AND RNP specifications
GNSS LANDING SYSTEM (GLS)
Landing system using Genesis, which is an alternative to instrument landing system (ILS).
USES GNSS AND AERODROME GROUND STATIONS TO TRANSMIT DATA WHICH HAS BEEN CORRECTED BY GNSS FOR THE AIRCRAFT THAT ARE EQUIPPED.
5 digital channel number instead of ILS frequency
GBAS ground based augmentation system
Provides two essential services:
Precision approach service up to category 3, and GBAS positioning service. Provides horizontal position information to support arnav, increasing position information and reducing separation between aircraft in terminal areas
LPV LOCALIZER PERFORMANCE WITH VERTICAL GUIDANCE
Difference from ILS by using gnss signal. MEANING GUIDANCE CAN BE PROVIDED TO MULTIPLE AIRCRAFT SIMULTANEOUSLY. CAN PROVIDE MINIMA OF 800 M VISIBILITY AND 200 FT DECISION ALTITUDE
Waypoint types
Fly by waypoint-used when an aircraft should begin to turn to next cause prior to reaching waypoint, known as turn anticipation.
Fly over waypoint- use when you craft must fly over waypoint prior to starting a turn
RNAV LEG TYPES
Track to fix TF-
A trackTO FIX leg is INTERCEPTED AND ACQUIRED AS A FLIGHT TRACK TO THE FOLLOWING WAYPOINT. THESE ARE SOMETIMES CALLED POINT-TO-POINT LEGS FOR THIS REASON.
Direct to fix Df- track from initial area direct to next five point
Course to fix CF- a path that terminates at a fix with a specified course at that fix.