Military Aviation

C-20 A/B Gulfstream III

C-20 A/B Gulfstream III


The C-20 Gulfstream III is a twin-engine, turbofan aircraft acquired to fill the airlift mission for high-ranking government and Defense Department officials. From the 89th Airlift Wing, Andrews Air Force Base, Md, seven B-model C-20s fly special air missions.


The C-20 is powered by two Rolls Royce Spey MK511-8 engines. The primary difference between the C-20A and B model is the electrical system and the avionics package.


The C-20 was chosen in June 1983 as the replacement aircraft for the C-140B Jetstar, and three A models were delivered to the 89th Air Wing under a cost-saving accelerated purchase plan. The three C-20As at Andrews Air Force Base were transferred to Ramstein Air Base, Germany, and all C-140Bs at both locations were phased out of the U.S. Air Force inventory.

General Characteristics

Primary Function: C-20A, operational support airlift; C-20B, special air missions.
Builder: Gulfstream Aerospace Corp.
Power Plant: Two Rolls-Royce Spey MK511-8 turbofan engines.
Thrust: 11,400 pounds (5,130 kilograms) each engine.
Length: 83 feet, 2 inches (25.2 meters).
Height: 24 feet, 6 inches (7.4 meters).
Wing Span: 77 feet, 10 inches (23.6 meters).
Speed: 576 mph (501 nautical miles) maximum.
Maximum Takeoff Weight: 69,700 pounds (31,365 kilograms).
Range: 4,715 miles (4,100 nautical miles) long-range.
Load: 14 passengers.
Unit Cost: $22.2 million.
Crew: Five.
Date Deployed: 1983.
Inventory: Active force, 10; ANG, 0; Reserve, 0.

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