Air Force One, Pima Air and Space Museum
www.pimaair.org/visit/aircraft-by-name/item/douglas-vc-11...
Extract: This aircraft served as the official Air Force One for President Kennedy. It was the last propeller driven aircraft to be designated as the primary Presidential transport. The VC-118A was overshadowed during its service by the introduction of the first Boeing VC-137s. President Kennedy preferred to travel in the larger, faster jet aircraft and the VC-118 was used primarily for short trips to airports that were too small for the big Boeings. Once the VC-137 became the primary Presidential aircraft the VC-118 was used as a back up plane and to transport lower ranking VIPs.
Air Force One, Pima Air and Space Museum
www.pimaair.org/visit/aircraft-by-name/item/douglas-vc-11...
Extract: This aircraft served as the official Air Force One for President Kennedy. It was the last propeller driven aircraft to be designated as the primary Presidential transport. The VC-118A was overshadowed during its service by the introduction of the first Boeing VC-137s. President Kennedy preferred to travel in the larger, faster jet aircraft and the VC-118 was used primarily for short trips to airports that were too small for the big Boeings. Once the VC-137 became the primary Presidential aircraft the VC-118 was used as a back up plane and to transport lower ranking VIPs.