Rule of thumb for figuring distances betweeen two points without GPS
This question comes from David:
How do you find an intersection that is off the airway your on without GPS/loran or a vector from ATC. For example, let’s say your over PXN (cental california) cleared to the Oakey intersection. Once I set up my radials to identify the fix, how do I estimate my ETA at Oakey without knowing the exact distance?
Thanks for your question David. To answer you question, I created a video tutorial showing you how to use a easy to remember rule of thumb that works especially well if you course is north-south (such as it is in your case). I hope this helps. Let me know if you have any other questions and remember to…
Fly Safe!
By the way, if you are curious about the desktop ruler I used in the demonstration, it is available at:
