What does the Challenger 2 have in common with the Challenger 1?
Challenger 2 The FV4034 Challenger 2 is a British main battle tank (MBT) in service with the armies of the United Kingdom and Oman. It was designed and built by the British company Vickers Defence Systems (now known as BAE Systems Land & Armaments).
STS-51-F STS-51-F (also known as Spacelab 2) was the nineteenth flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle "Challenger". It launched from Kennedy Space Center, Florida, on July 29, 1985, and landed just under eight days later on August 6.