FD leg — track from a fix to a DME distance — Aviation Definition

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Constant radius arc or RF leg
FD leg — track from a fix to a DME distance
DME NAVAID
CD leg — course to a DME distance
Track from a fix to a distance measuring equipment (DME) distance or FD leg
FD leg
Course to a DME distance or CD leg
database VOR NAVAID
VOR NAVAID
VD leg — heading to a DME distance termination
VM leg — heading to a manual termination
Heading to a DME distance termination or VD leg
VD leg
Heading to a manual termination or VM leg
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192 words in this area · Next word: DME NAVAID →

Plain English Meaning

A coded flight path that starts at a named point and ends when you are a set number of miles from a navigation station, measured by onboard distance equipment.

Full Definition

An FD leg is an RNAV path-and-terminator leg type that defines a track beginning at a specified fix and ending when the aircraft reaches a defined DME (Distance Measuring Equipment) slant-range distance from a designated navigation aid. The leg has a published course, and the terminator is the moment the aircraft crosses that DME distance.

Context Anchor

Seen in instrument procedure design, , and leg descriptions when a procedure ends at a DME distance instead of at another named point.

FD leg — track from a fix to a DME distance

Plain English Meaning

Full Definition

Context Anchor

Derivation

Why Pilots Care

Grounding Statement

Intuition Check

Example Sentence 1

Example Sentence 2