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Northrop Grumman’s new airborne GPS navigation system achieves successful flight test

June 29, 2023

Photo of Northrop Grumman’s LN-251 INS / GPS system, the precursor to the LN-351 unit.

Northrop Grumman Corporation (NYSE: NOC) has conducted a successful flight test of the company’s advanced airborne navigation solution, Embedded Global Positioning System (GPS) / Inertial Navigation System (INS) Modernization, known as EGI-M. This is the first time that EGI-M, equipped with an M-Code capable receiver, has been tested in flight.

The F-22 is one of the lead platforms for EGI-M integration.
U.S. Air Force Photo/Staff Sgt. Carlin Leslie.

M-Code technology enables missions to be conducted in GPS-contested and GPS-denied environments.

The M-Code capable GPS receiver is a core component of Northrop Grumman’s EGI-M program, engineered to quickly transmit positioning, navigation and timing (PNT) information.

The fully operational EGI-M system will feature a modular platform interface, designed to easily integrate with current platform navigation systems, supporting advanced software and hardware technology upgrades now and in the future.

Testing occurred in May aboard a testbed aircraft. Flight test data confirmed that Northrop Grumman’s prototype EGI-M solution, the M-Code capable LN-351, performed at standards equal to the current LN-251 INS / GPS system, featuring modern fiber optic gyro technology.

Pre-flight preparations aboard Northrop Grumman’s testbed for its advanced airborne navigation system. Photo is courtesy of Northrop Grumman.

Critical design review for EGI-M was completed in 2020. Launch platforms for Northrop Grumman’s EGI-M are the E-2D Advanced Hawkeye and the F-22 Raptor. Additional fixed-wing and rotary-wing platforms across Department of Defense and allied forces have selected Northrop Grumman’s EGI-M as their future navigation solution to support mission-critical systems.

Pictured: Left—Northrop Grumman’s E2D Advanced Hawkeye | Right—Lockheed Martin’s F-22 Raptor.

“This flight test is a major step forward in developing our next generation airborne navigation system. The EGI-M capability developed by Northrop Grumman enables our warfighters to navigate accurately and precisely through hostile and contested environments.” — Ryan Arrington, Vice President, navigation and cockpit systems, Northrop Grumman

Filed Under: Contracts & Commercial Deals, Launch Schedule & Calendars

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