Air Navigation

Wind Triangle Solver

Every navigation leg starts with the wind triangle. It is the most-tested calculation in the DGCA Navigation paper and the one you will work on every flight plan.

kt
°
°
kt
NM

Optional, for time en route

Try an example

N ↑HDG 075° · TAS 120W/V 030/35TR 090° · GS 99
Heading & TAS (air)WindTrack & groundspeed
Heading to fly075°T
Groundspeed99kt
Drift14.6°rightCorrection 14.6° left of track
Headwind component18ktCrosswind 30 kt from the left
Time en route01:13for 120 NM

How to use it

  1. Set your true airspeed and the true track you want to make good.
  2. Enter the wind from the forecast or METAR: the direction it blows from and its speed.
  3. Read the heading to fly, drift and groundspeed. The triangle redraws as you change any value.
  4. Add a leg distance to get the time en route.

For learning and exam practice only. Not for operational flight planning: always use your aircraft’s flight manual, official charts and current weather.