Boeing C-137 Stratoliner

C-137 Stratoliner
C-18
A VC-137B Stratoliner aircraft taking off in 1981
General information
TypePassenger/VIP transport
National originUnited States
ManufacturerBoeing
StatusRetired
Primary userUnited States Air Force
History
Manufactured1954–1965
First flight31 December 1958
Developed fromBoeing 707
VariantsBoeing CC-137
VC-137C SAM 26000
VC-137C SAM 27000

The Boeing C-137 Stratoliner is a retired VIP transport aircraft derived from the Boeing 707 jet airliner used by the United States Air Force. Other nations also bought both new and used 707s for military service, primarily as VIP or tanker transports. In addition, the 707 served as the basis for several specialized versions, such as the E-3 Sentry AWACS aircraft. The designation C-18 covers several later variants based on the 707-320B/C series. The C-137 should not be confused with the similar Boeing C-135 Stratolifter; although they share a common ancestor the two aircraft have different fuselages, among other structural differences.