In 2016 the US Navy ordered a single Gulfstream G550 business jet based on the special-mission Israeli airborne early warning type for adaptation into a long-range, high-speed test range support aircraft. A navy contract notification published on 18 March 2016, US Naval Air Systems Command (NAVAIR) paid $91.9 million for a green aircraft with air vehicle modifications for airborne early warning, with delivery scheduled by December 2018. The navy has been considering this purchase since October 2013 when it released a notice calling for a replacement range support aircraft to be flown by Air and Test and Evaluation Squadron VX-30, which is based at Point Mugu (CA). The navy selected the airframe on October 6, 2014 and was contracting separately for integration of telemetry data-gathering systems and sensors to support a range of missions such as flight testing of naval missiles and rockets.
At the end of 2018 the U.S. Navy publicly announced that it took delivery of its first NC-37B missile range support aircraft earlier in 2018. The aircraft headed to Raytheon, which will integrate a host of specialized mission equipment into the plane so it can keep missile ranges clear of hazards during tests, gather important telemetry data from those launches, and serve as a communications relay platform. On the 26th of June the aircraft was seen on a test-flight from Savannah (CA). The Naval Air Systems Command officially received the NC-37B, a modified Gulfstream G550 business jet, on July 30, 2018. Scramble Magazine had been the first to catch a glimpse of the plane, which was already wearing the colors of the "Bloodhounds" of Air Test and Evaluation Squadron Three Zero (VX-30), which is headquartered at Naval Base Ventura County in Point Mugu, California, the month before. The aircraft has received the Bureau Number (BuNo) 166379/BH-100 serial number and is ex N544GD (5544).