French Navy to Test STARNAV Magellan at Sea in 2027, a Star Navigation System Immune to GPS Jamming

STARNAV is preparing its Magellan astro-inertial navigation system for French Navy sea trials in 2027, with Naval Group developing interfaces for integration into shipboard navigation architectures. Magellan combines an inertial measurement unit with automated optical observations of stars at night and the sun by day to correct navigation drift without satellite signals. The company lists position accuracy of 0.1 nautical mile, although detailed operational test results have not been released. A six-flight C-130H evaluation of the MAGELLAN AERO variant took place in June 2026, with further airborne validation planned alongside the naval work.