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 CATBird upgraded by Northrop Grumman with Tech Refresh 2 hardware which gives the CATBird capability to test F-35 Block 3 Software. Lockheed Martin CATBird The Lockheed Martin CATBird is a highly modified Boeing 737-330 designed as an avionics flight testbed aircraft. The name is an adaptive acronym, from "Cooperative Avionics Test Bed"; coincidentally, "CATBIRD" is Lockheed's ICAO-designated company callsign. The aircraft was modified in order to provide an economic means of developing and flight testing the avionics suite for the Lockheed Martin F-35 Lightning II. CATBird has a distinctive appearance, with an F-35's nose and a pair of small canards located