IFR - Acronyms

• Chan: with DME?
• Rwy ldg: runway landing, length
• TDZE: touch down zone, MSL
• Apt Elev: airport elevation, MSL
• TCH: threshold crossing height
• RVR: Runway Visual Range
• IAP: instrument approach procedure
• PBN: Performance Based Navigation
• RNP APCH: RNP Approach
• RNAV: Area Navigation
• ILS: Instrument Landing System
• RF: Radius to Fix.
  • RF leg: A curved segment that indicates a constant radius circular path around a defined turn center (think of a DME arc in VOR apporaches). RF legs start and end on a fix or waypoint.

Fixes:

• IAF: the initial approach fix.
• IF: the intermediate fix, is the next fix after the IAF.
• FAF: Final approach fix.

Points:

• VDP: Visual Descent Point
• MAP: Missed Approach Point