Following the B-377PG Pregnant Guppy was the larger B-377SG Super Guppy of 1965. Ex-USAF YC-97J was modified by adding wing root plug, stretching fuselage 30’10”, and adding huge new upper fuselage lobe with interior radius of 25′. Nose of fuselage pivoted to allow cargo loading. This featured an outsize fuselage with a cargo compartment measuring 33.17m in length, 7.62m in width, and 7.77m in height, and an increased wing span and four 5220kW turboprop engines.
The sole Guppy-201 built, N1038V, first flew on 31 August 1965.
The only aircraft able to carry the third stage of a Saturn V launch vehicle, and the Lunar Module adapter, this Super Guppy was also used in the American space programme.
Displayed at Pima County Air Museum, Tucson AZ.
377SG “Super Guppy”
Engine: 4 x Pratt-Whitney T-34P7 turboprops, 4500kW
Take-Off Weight: 79400 kg / 175048 lb
Empty Weight: 47600 kg / 104941 lb
Payload: 18500 kg / 40786 lb
Wingspan: 47.7 m / 156 ft 6 in
Length: 43.1 m / 141 ft 5 in
Height: 11.7 m / 38 ft 5 in
Max. Speed: 480 km/h / 298 mph
Ceiling: 6000 m / 19700 ft
Crew: 3-4
All Aero 