systems. The second phase was finalizing the system's design and ground system and clearing it for installation on multiple aircraft. DARPA field-tested parts of PCAS-Ground in Afghanistan from December 2012 to March 2013, deploying some 500 Android tablets equipped with PCAS-Ground situational awareness software, which dramatically improved units' ability to quickly and safely coordinate airstrikes. Raytheon won the $25 million, 18-month Phase 3 contract in February 2014 and began flight tests that October; the entire three-year program was funded at $82 million. Once flight testing of PCAS-Air's modular smart launcher electronics was completed on an A-10 and shown it can connect with a PCAS-Ground kit, the platform-agnostic PCAS system would be available for integration and testing with other fixed and rotary-wing aircraft. Operation To engage ground targets, PCAS-Ground comprises a smart power hub, customized Android tablet computer loaded with situational-awareness and mapping software, and a digital radio that altogether weigh only , plus a laser-targeting device that weighs another 5 lb. When a JTAC identifies a target for attack, they create the "nine-line" engagement plan on the tablet and transmit the plan to the aircraft, with the ability to "stack" multiple identified targets. PCAS-Air software then evaluates and auto-populates the plan with whatever sensor and weapons data is available, sharing the information with PCAS-Ground to confirm the attack. The JTAC gets a countdown to weapons release, and can see an impact line as well as weapon damage radius; both aircrew and JTAC can see video of the target on their tablets, eliminating the need for the larger, dedicated ROVER laptops currently used by JTACs to view airborne video. PCAS makes it easier to accurately deploy weapons with smaller warheads for less collateral damage and gives "Level 3" control to JTACs to remotely steer airborne sensors if needed. Testing DARPA conducted the first demonstration of the whole PCAS system with the U.S. Marine Corps on 27 March 2015 during the Talon Reach training exercise. The exercise was the first time the air component was integrated with the ground component in use operationally since 2013, dubbed Kinetic Integrated Low-cost SoftWare Integrated Tactical Combat Handheld (KILSWITCH), combining PCAS-Ground's better navigation, situational awareness, fire coordination, and communications with PCAS-Air's weapons management, ISR, and communications systems on a Smart Launcher Electronics (SLE) device. During the demonstration, ground forces used an Android tablet to identify a target and sent its position to an MV-22 Osprey, which