What are RF legs?
An RF leg is defined as a constant radius circular path, around a defined turn center, that starts and terminates at a fix. An RF leg may be published as part of a procedure.
What is the difference between RNAV and GNSS?
Internationally, “RNAV(GNSS)” is often used instead of “RNAV(GPS)” in the approach title, but functionally they’re pretty well the same thing — it’s simply a nod internationally to the fact that if your FMC knows where it is, the approach designer doesn’t care which satellite system it’s getting its position data from …
How is the radius to fix RF leg defined?
A Radius to Fix (RF) leg is defined as a constant radius circular path around a defined turn center that terminates at a fix.
What does Required Navigation Performance ( RNP ) mean?
Required navigation performance ( RNP) is a type of performance-based navigation (PBN) that allows an aircraft to fly a specific path between two 3D-defined points in space. Area navigation (RNAV) and RNP systems are fundamentally similar.
How are leg types identified in an aircraft?
Leg types are identified by a two-letter code that describes the path (e.g., heading, course, track, etc.) and the termination point (e.g., the path terminates at an altitude, distance, fix, etc.). Leg types used for procedure design are included in the aircraft navigation database, but not normally provided on the procedure chart.
How are leg types defined in RNAV procedure?
RNAV Leg Types. A leg type describes the desired path proceeding, following, or between waypoints on an RNAV procedure. Leg types are identified by a two-letter code that describes the path (e.g., heading, course, track, etc.) and the termination point (e.g., the path terminates at an altitude, distance, fix, etc.).
What do you need to know about Nav specs?
Nav Specs are a set of aircraft and aircrew requirements needed to support a navigation application within a defined airspace concept.