Using the good old nav computer in 5 easy steps...
1. Put your TAS under the centre dot,
2. Put your true heading under the 'true index'
3. Place a mark where your drift meets your groundspeed,
4. Rotate the wheel around so that your mark lies directly BELOW the centre dot.
5. Then simply read off the wind direction (degrees true) under the true index and wind speed is the distance between the centre dot and your mark. (Oh no my pocket protector is leaking.....
)
XRNZAF.
