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 Stalker Lockheed Martin Stalker The Stalker is a hand-launched, electrically powered unmanned aerial vehicle developed by Lockheed Martin Skunk Works for an unspecified customer, presumably United States Special Operations Command. The Lockheed Martin Stalker was created in 2006 by the same Skunk Works team responsible for the Desert Hawk. It is hand launched and belly landed, has a quiet electric motor and propeller, and carries a detachable camera payload. The camera system has modules for daylight, low light, and infrared. The camera system can be removed and replaced with droppable payloads. A propane fuel cell powered version of the Stalker with