The GPS 155 was the first Global Positioning System (GPS) receiver certified for U.S. operation in Instrument Flight Rules (navigating only by instruments). This certification marked the move toward a single GPS-centered navigational and surveillance system for air traffic control.
The certification set for the first GPS receiver certified for use under Instrument Flight Rules (IFR).
Image Date: 2012
Credit: National Air and Space Museum, Smithsonian Institution.
Origin: National Air and Space Museum, Smithsonian Institution.