This Super Guppy was assembled from parts of several aircraft - 52-2693 and 52-2762 both YC97Js. Nose gear from Boeing 707 mounted backwards. N1038V was originally a Stratocruiser with Pan American, then as B-377SG (Super Guppy) N940NS with NASA.

The unmissable bulk of the Super Guppy. Most of the airframe for the conversion by Aero Spacelines in 1965 came from a former Pan American Airways Boeing Stratocruiser, N1038V. However, the wings, engines, and forward fuselage came from one of the Air Force's experimental turbo-prop powered YC-97J aircraft, 52-2693. It continued in use by NASA until 1991 when it was replaced by a younger Super Guppy (N951NA ex F-GEAI)

NASA? Super Guppy departing March AFB

Constructed using major sections of B377 Stratocruiser N1038V, ex Pan Am, and retaining its original Boeing c/n.

Built as a 377 and delivered to Pan American World Airways in September 1949 as N1038V. Initially it was named Clipper Constitution, later renamed Clipper Hotspur. Withdrawn from use and stored at New York in 1960. To Boeing, (August 1960), Lee Mansdorf & Co. (October 1960) and Aero Spacelines (1963), where it was converted to a 377SGT. By August 1965 it was registered N1038V again. In September 1965, the aircraft was involved in an incident at/near Mojave (CA); the airframe failed in-flight (while cruising). The factors included separation in flight and damage was substantial. The aircraft was able to make an emergency landing and there were no fatalities. NASA have had 2 377's registered as N940NS, the other one being c/n 16724.

Another incredible sight at Pima.