Aero Spacelines Super Guppy. It was the successor to the Pregnant Guppy, the first of the Guppy aircraft produced by Aero Spacelines. Five were built in two variants, both of which were colloquially referred to as the "Super Guppy". The Super Guppy is the only airplane in the world that has carried a complete S-IVB stage, the third stage of the Saturn V rocket. The Super Guppy performed this role several times during the Apollo program. It was built directly from the fuselage of a C-97J Turbo St