On the Nav Computer: Centre dot on TAS 555kts, put the heading, 229
o T, under the HEADING index. With heading 229 o T and
track 239 o T the drift is 10 o Stbd (right).
Mark the wind vector where the drift (10 o Stbd) crosses the
groundspeed (577kts). Rotate to put this mark under the centre dot and
read the wind: 130 o T/100kts.