Engineers from the USMC Light/Attack Helicopters program office (PMA-276) and Air Test and Evaluation Squadron (HX) 21 monitor the Mobile Systems Integration Lab, a ground station designed by Naval Air Warfare Center Aircraft Division (NAWCAD) to validate the digital interoperability suite’s connection with the AH-1Z during flight. During the one-hour flight, conducted by HX-21, pilots successfully communicated with a multiband networking manpack radio, the PRC-117G, and ground lab. (Photo by: Joy Shrum)