https://web.archive.org/web/20150413115830/http://www.flightglobal.com/blogs/the-dewline/2011/09/images-lockheeds-stealth-c-130/ Lockheed's stealth C-130 successor revealed] - Flightglobal.com, 13 September 2011 The Air Force Research Laboratory funded Lockheed and Boeing demonstrators for the Speed Agile concept, which had the goal of making a STOL aircraft that can take off and land at speeds as low as 70 knots on airfields less than 2,000 ft (610 m) long and cruise at Mach 0.8-plus.