Currently, we can only enter GPS coordinates with a precision of DDMM, which works just fine for waypoints mid-flight. However, with the advent of RNP approaches and Other situations where more precision is needed, it would be nice to be able to add seconds into the mix.
(This would also keep GPS waypoints used to replace waypoints that aren’t in the sim more exact, whereas currently, what should be a straight line along an airway becomes an unrealistic jagged jog left or right before returning to the airway.)
For an example of what I’m talking about with RNP approaches, I’ve used the RNP approach to 12L at KSTL:
As you can see, each of those dots is used to guide along the arc of the turn, but it requires a precision we can’t achieve in IF. Without seconds, 7 or 8 or 9 pesudo waypoints may only actually be 2 or 3 different sets of coordinates in the current format, and the likelihood they actually form an arc virtually nil.
I recognize these account for only a tiny sliver of flight time in toto, but it would certainly make for much smoother flight plans around intercept, providing the ability to utilize a growing number of IAPs with the precision demanded of RWA flight.
I’m not sure what, if any, limitations may simply be inherent in the map, and I realize that’s a possibility. But, if the map structure doesn’t provide an obstacle, adding in seconds would be a welcome addition.
(I had this drafted prior to announce,ents regarding the new map. That may change things, but I will go ahead and post anyway since it’s still saved as a draft.)