Definition
A waypoint on an RNAV (area navigation) instrument approach procedure that serves a dual role: it is both the Initial Approach Waypoint (the point where the initial approach segment begins) and the Intermediate Fix (the point where the intermediate approach segment begins). It is used when an aircraft joins the approach directly at this point, such as via radar vectors or a Terminal Arrival Area (TAA) routing, allowing the pilot to skip the initial segment and proceed straight into the intermediate segment.
Plain English
A single point on an RNAV approach chart that can act as either the start of the initial approach or the start of the intermediate approach, depending on how the aircraft arrives at it.
Context Anchor
Seen on instrument approach charts, especially RNAV approach procedures, as a waypoint label such as “IF/IAWP.”
Derivation
The label combines two existing approach terms: 'Intermediate Fix' (IF) and 'Initial Approach Waypoint' (IAWP). The slash signals that one waypoint serves both functions, depending on how the aircraft gets there.
Why Pilots Care
It defines the start of protected airspace and the point from which altitude restrictions and course guidance must be followed for a safe and legal approach.
Intuition Check
The slash does not mean choose either IF or IAWP. It means the same waypoint has both roles on that procedure.
Example Sentence 1
ATC cleared us direct to the IF/IAWP, so we joined the approach at the intermediate segment instead of flying the full procedure.
Example Sentence 2
After loading the approach, the GPS sequenced directly to the IF/IAWP as the first waypoint on the procedure.