On the Nav
Computer: Centre dot on TAS 230kts, put the heading, 307šT, under the HEADING
index.
With heading 307šT and track 313šT
the drift is 6š Stbd (right).
Mark the wind vector where the drift
(6šStbd) crosses the groundspeed (210kts).
Rotate to put this mark under the
centre dot and read the wind: 260šT/30kts.