National Ocean Service (NOS) binder. [Courtesy: Meg Godlewski]
Key Takeaways:
Before electronic flight bags (EFBs), pilots chose between government-printed National Ocean Service (NOS) or Jeppesen paper charts for instrument flight rules (IFR) navigation.
Jeppesen charts, now standard in commercial aviation, feature a detailed briefing strip and specific layout, while NOS charts, used extensively by the military, include obstacle warnings and military-specific notes.
Though EFBs have largely replaced paper charts, understanding both Jeppesen and NOS formats remains a valuable skill for pilots, particularly in training, to enhance employability.
Before electronic flight bags became as obsequious as Starbucks, pilots relied upon paper charts for information, especially in the IFR environment.
There were two choices for instrument approach plates: the government-printed National Ocean Service (NOS), or Jeppesen. Every fledgling instrument candidate had to choose which they would use.
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Meg Godlewski has been an aviation journalist for more than 24 years and a CFI for more than 20 years. If she is not flying or teaching aviation, she is writing about it. Meg is a founding member of the Pilot Proficiency Center at EAA AirVenture and excels at the application of simulation technology to flatten the learning curve. Follow Meg on Twitter @2Lewski.
