The Aero Spacelines Super Guppy (SG) is a large, wide-bodied cargo aircraft that is used for hauling outsized cargo components. It is the replacement for the Pregnant Guppy.
Super Guppy
The physical limitations of railroad tunnels, narrow roads, low bridges, and power lines make overland shipment of oversized cargo extremely problematic, if not impossible. NASA’s Super Guppy offers a practical and economical solution to these problems.