Lockheed Martin SR-72 have the same range, with entry into service by 2030. The SR-72 follows the US Air Force's hypersonic road map for developing a hypersonic strike weapon by 2020, and a penetrating ISR aircraft by 2030. At the time of the concept's unveiling, Lockheed Martin had engaged in talks with government officials, but has not secured funding for the demonstrator or engine. On 13 November 2013, Air Force Chief of Staff General Mark Welsh revealed that the service was interested in the SR-72's hypersonic capabilities, but had not spoken with Lockheed Martin about the aircraft. Its high speed appeals to the
Lockheed Martin JLTV in a Limited User Test (LUT), compared to 2,968 miles for the Humvee and 7,051 for the winning L-ATV. On 8 September it was disclosed that Lockheed Martin would protest the award to Oshkosh, the same day that AM General decided not to file a protest. On 15 December 2015, the Government Accountability Office (GAO) dismissed Lockheed's protest as Lockheed also filed a claim with the US Court of Federal Claims. Lockheed then attempted to file a preliminary injunction with the U.S. Court of Federal Claims on 17 December, but announced they had withdrawn their protest on 17 February 2016.