You should initiate the turn in Figure 23 above at approximately 2.8 DME (minimum DME).
The chances of turning overhead a fix or navaid and ending up exactly on the desired
outbound course are quite slim primarily due to aircraft turn radius and winds. Consequently, we
lead turns so as to arrive on the desired course upon rolling wings-level. We lead turn onto
airways and onto direct legs. There are two situations: turning at a navaid and turning at a fix not
located at a navaid.
RADIAL TRACKING AND COURSE CONTROL 3-15