USAF C-20 Gulfstream airplane model. The C-20 is a military modification of the commercial Gulfstream aircraft, manufactured by Gulfstream Aerospace Corporation (GAC) Savannah, Georgia. The C-20 aircraft provide distinguished visitor (DV) airlift for military and government officials. They support the long range/low passenger load DV airlift niche, offering worldwide access while including a communications suite which supports worldwide secure voice and data communications for the DV and staff. It also transports the U.S. President into airports where the larger VC-25 (747) cannot operate.
The C-20 is one of the mainstays of AMC's special air mission [SAM] fleet. Their mission, often dealing with highly visible and sensitive diplomatic issues, requires the utmost physical and communications security as SAM passengers conduct highly sensitive business while en-route. Mission protocol dictates the use of civilian airports almost exclusively. The 89th Airlift Wing, Andrews Air Force Base, MD, operates five B-model and two H-model C-20s for worldwide special air missions. The 86th Airlift Wing, Ramstein Air Base, Germany, operates three A-models for operational support airlift.