Before electronic flight bags (EFBs), pilots relied on paper instrument approach plates, primarily choosing between government-produced National Ocean Service (NOS) charts and Jeppesen charts.

Richard Aedy: We begin in the air. If you've ever been on a plane that landed in poor visibility you don't forget it. The pilot's relying on instruments and using something called instrument approach ...

IFR pilots in the U.S. choose between Jeppesen and government-issued d-TPP instrument approach plates, with Jeppesen often favored by professional pilots for its integrated and standardized format, ...