Raytheon Company tested a new propulsion system for the Tube-Launched, Optically-Tracked, Wireless (TOW) missile. Developed by ATK, the enhanced system doubles TOW's range and reduces the missile's flight time by one-third. During the test, the developmental propulsion system flew the missile more than seven kilometers (4.35 miles), reaching four kilometers (2.5 miles) in significantly less time. Raytheon and ATK's Missile Products Group worked closely to develop a propulsion system that improves the performance of the TOW missile. The launch, boost, sustain (LBS) propulsion system also incorporates a rocket motor designed with Insensitive Munitions (IM) features to provide added safety: IM compliant systems are less likely to react explosively when subjected to bullet and fragment impacts, external fire or other hazardous events.