Northrop Grumman Corporation has announced successful flight test results for its advanced airborne navigation solution, the Embedded Global Positioning System (GPS) / Inertial Navigation System (INS) Modernization, known as EGI-M. The test, which took place in May, marked the first in-flight demonstration of EGI-M equipped with an M-Code capable receiver. The data confirmed that the prototype EGI-M solution, the LN-351, performed at standards equal to the current LN-251 INS/GPS system. The EGI-M system is designed to enable accurate navigation in GPS-contested and GPS-denied environments and will be integrated into platforms such as the E-2D Advanced Hawkeye and F-22 Raptor. The research results have already been presented.