Was a long-range- Mach 3.5+ strategic reconnaissance aircraft developed by Lockheed and its Skunk Works® division. It was 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. Note: Skunk Works is the nickname for Lockheed*s Advanced Development Programs. Skunk Works engineers have developed highly advanced- military aircraft- often in secret- since World War II.****Features:**• Extraordinary 3-D laser cut models that assemble in about 40 minutes**• Models average in size between 3 to 4 inches**• Each model features amazingly detailed etching**• The laser cut from an 11cm square metal sheet**• Recommended for ages 14 and up