US firm developing GLSDB 2.0 weapon with improved electronic warfare resilience
Unlike its predecessor, the GBU-53/B features a significantly more advanced guidance system.
Defense giant Raytheon, a division of RTX Corporation, is developing a ground-launched variant of its GBU-53/B Small Diameter Bomb II, the precision-guided, long-range munition known as StormBreaker.
Raytheon has not disclosed full details but plans to begin testing the weapon this summer, according to Jon Norman, Vice President of Air & Space Defense Systems Requirements & Capability, during the Fighter Pilot Podcast. Currently, the company is assessing propulsion options, weighing a traditional solid-propellant system against an air-breathing jet engine.