LEFT SEAT CULTURE PILOT TOOLS
Diversion & Drift Calculator
Work a diversion leg the way it's taught in training. Enter track, distance, wind and TAS, and the wind star rotates to your track while the numbers fill in below.
DIVERSION & DRIFT
Work the diversion
Measure the new track and distance off your chart, then add the forecast wind and your TAS. This solves the exact wind triangle for drift, corrected heading and time to run.
Diversion leg details
Measure track and distance off the chart, then enter the forecast wind and your TAS.
Quick rule: 60 ÷ TAS × wind speed = full drift (°), applied at 90° off track. This tool solves the exact wind triangle for the numbers on the right — the rule of thumb is on the star for the mental-maths check.
Groundspeed / time reference
Your computed groundspeed and distance are highlighted once you've entered the details above.
RESULT
Enter leg details
The tool will calculate drift, corrected heading and time to run.
This tool supports quick in-flight diversion working using the 1-in-60 rule. It checks only the data entered and does not replace proper flight planning, chart work, updated ATC/FIS information or pilot judgement.
Reading the wind star
The star rotates so its centreline points along your track, just like laying tracing paper over a compass rose. Where the wind direction falls on the fan — 1/4, 1/2, 3/4 or full — gives you a quick mental estimate of drift; the numbers above give you the exact figure for the leg you've entered.
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