The SR-71 Blackbird is a long-range, Mach 3.5+ strategic reconnaissance aircraft developed by Lockheed and its Skunk Works division, the Lockheed advanced development program. It is the first aircraft to be constructed mainly of titanium. At full velocity the airplane surface heats up to over 260°C+ (500 °F). A total of 3,551 missions were flown and not one Blackbird was lost due to enemy military retaliation.Now you can have your very own 3-inch-tall SR-71 Blackbird with the SR-71 Blackbird 3D Metal Model kit. This amazingly detailed DIY model starts as a 4" laser-cut square steel sheet, and finishes as a beautiful 3D model. Use the easy to follow instructions to pop out the pieces, bend the tabs, and connect them at the attachment points.Build your collection of 3D laser-cut models, and create your own metal world!