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
GBU-10 Paveway II Martin and Raytheon. Raytheon began production after purchasing the product line from Texas Instruments. Lockheed Martin was awarded a contract to compete with Raytheon when there was a break in production caused by transferring manufacturing out of Texas. Raytheon production of the Paveway II is centered in Arizona, Texas, and New Mexico. Lockheed Martin production is centered in Pennsylvania. Laser-guided bombs are often labeled as "smart bombs", despite requiring external input in the form of laser designation of the intended target. According to Raytheon's fact sheet for the Paveway 2, 99 deliveries of guided munitions will yield a circular error