DR 1:60
I have attached a full explanation of the 1:60 rule as a pdf. I'm sorry if this is cumbersome, I don't know of a simpler way.
If you were to use this method it requires repeating for a closing angle to the next waypoint or destination if that is the choice. Otherwise using the discovered angle off track double it toward the track to regain in the same distance and time or treble it to regain track in half the distance and time.
As can only be expected there are various 1:60 methods such as using inverse fractions, particular used by commercial pilot schools, for a number of years, who preferred closing angle direct to destination/waypoint for reasons that do not bear explanation.
Last edited by Fl1ingfrog; 4th Feb 2018 at 23:59.
Reason: improved pdf