N941NA Aero Spacelines 377 SGT (Super Guppy Turbine) is currently owned by NASA and based at El Paso international Airport. NASA used it primarily to transport parts for the International Space Station. The super guppy was built from the cockpit, wings, and tail of a Boeing C-97. Unlike the previous guppies that used the C-97 fuselage, this version was built with a completely redesigned fuselage. It’s powered by four Allison 501-D22C turboprop engines that can produce 4,680 horsepower each and has a swing nose to facilitate cargo loading. This was the largest and last guppy built and is an important part of aviation history.