Designation: 377SG

Aero Spacelines 377G “Super Guppy”

Aero Spacelines 377-SG “Super Guppy”

The Aero Spacelines 377-SG

Based on the Boeing C-97 cargo plane and the Boeing 377 airliner, the huge “Guppy” super-transports are some of the most unique aircraft ever built. Designed to carry very large, but relatively light cargos, the Guppies were built from parts of retired U.S. Air Force C-97 Stratofreighters and airline 377 Stratocruisers. The planes proved to be very useful for carrying segments of rockets and many of the Saturn rockets that powered the Apollo Program were transported in the Super Guppy. This is the second Guppy, the first “Super Guppy” built. Its parts came from at least two different aircraft. Most of the airframe came from a former Pan American Airways airliner. However, the wings, engines, and forward fuselage came from one of the Air Force’s experimental turbo-prop powered YC-97J aircraft. The Super Guppy continued in use by NASA until 1991 when it was retired in favor of a younger Super Guppy.

Wingspan 156 ft 3 in.


Length 143 ft 10 in.


Height 46 ft 5 in.


Weight 170,000 lbs (loaded)


Cargo bay interior 108 ft 10 in. long, 25 ft wide, 25 ft 6 in. high

Cargo bay interior

Maximum cargo weight 41,000 lbs

Maximum cargo weight

Cruising Speed 300 MPH

Cruising Speed

Range 505 miles


Engines Four Pratt & Whitney T34-P-7WA turboprops with 7,000 horsepower


Crew 4


Aero Spacelines

National Aeronautics and Space Administration, 1991


N1038V, N940NS

Serial Number

Pima Air & Space Museum

Creating unlimited horizons in aerospace education through the preservation and presentation of the history of flight.

Charity EIN: 86-6031135

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