by Fred J. Calfior and Douglas W. Miller
“Changeover points are used on Victor airways where you change from one VOR station (behind you) to another along your route of flight. There are three ways of determining when you've arrived at a changeover point.
1. Either at the halfway point OR
2. where designated on the low or high altitude enroute chart OR
3. where the airway changes direction
The designation on a chart looks like what I call a half a swastika, where the distance to and from each end of the airway is shown.”
1) When “22.0” DME from SFO VOR, turn to intercept airway “V6” inbound to OAK VOR
2) Descend to “2500” feet
3) What scale is the “VFR WAC chart” drawn to?
If your answer is “1:500,000”, go to AirLeg 24
If your answer is “1:1,000,000”, go to AirLeg 109