Likewise with many other charts as well, the co-ordinates are there, just insert same as a waypoint, dial up direct to...works like a charm.
Remember one of the very early SQ 707 flights to HNL, the aircraft was fifty miles off track, with one INS fitted.
Yet with a navigator, using Bendix Doppler and astro nav...right on course.
Of course, it helps to read the INS book before using same...which a few guys thought was not necessary...
