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 $7.1 billion. The Pentagon has criticized the acquisition as causing a reduction in competition. In November 2015, the acquisition received final approval from the Chinese government, with a total cost of $9 billion. Dan Schulz was named the president of Lockheed Martin's Sikorsky company. Lockheed Martin has shown sketches for a twin-engine, blended wing body strategic airlifter similar in size to the C-5. On March 31, 2015, the US Navy awarded Lockheed Martin a contract worth $362 million for construction of Freedom-class ship LCS 21 and $79 million for advanced procurement for LCS 23. The Freedom-class ships are built by