Hi!
The title says it all. In the map on my iPad, how do I extend VOR radials? I am planning a route which takes me on a 180 degree southbound direction and I want to follow this course till I intercept he 45 degree outbound radial of a VOR southwest of my location. In the map I would like to extend the VORs radials to see which exact radial would be best to track...

How can I do this?

Thanks!