Lockheed Martin’s ET-137 space shuttle flight tank is ready for Nasa.
Lockheed has completed building the ET-137 for teh Endeavour space shuttle’s last mission to the International Space Station (ISS) in November 2010.
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Weighing approximately 1.7 million pounds when loaded with 535,000gal of propellant, the external tank is 154ft tall and 28ft in diameter.
Lockheed is also building ET-138, which is scheduled to fly with shuttle Discovery in September 2010.
