Det 2, 6994 ESS

• Unique Mission: Detachment 2, 6994th Security Squadron (later Electronic Security Squadron - ESS) was a U.S. Air Force signals intelligence (SIGINT) unit during the Vietnam War, specializing in airborne radio direction finding and electronic surveillance. • Aircraft Flown: The unit operated modified EC-47 “Electric Goon” aircraft, which were C-47 Skytrains equipped with sophisticated electronic eavesdropping and direction-finding gear. • Vital Role in Vietnam: Det 2, 6994 ESS played a crucial role in tracking Viet Cong and North Vietnamese Army communications, helping to locate enemy units and supply lines. • Location: The detachment was based at Pleiku Air Base in central South Vietnam, strategically positioned to cover the Ho Chi Minh Trail and Central Highlands. • Joint Operations: The unit often worked closely with Army and Marine ground forces, providing real-time intelligence that enabled successful ambushes and interdictions. • High Risk Missions: EC-47 crews faced serious threats from anti-aircraft artillery, small arms fire, and the danger of flying over hostile territory at low altitudes. • Decorations: Members of Det 2, 6994 ESS earned multiple Air Medals, Distinguished Flying Crosses, and even the Air Force Cross for valor during their hazardous missions. • Notable Losses: The unit suffered casualties, including the loss of EC-47 tail number 43-49771, which was shot down on March 9, 1967, resulting in the deaths of all crew members. • Code Name: The EC-47 missions were sometimes referred to under the call sign “CAP,” such as "CAP 53," with each mission and crew using unique identifiers. • Legacy and Reunion: Alumni of the 6994th and its detachments, including Det 2, maintain strong bonds and hold regular reunions to honor their service and fallen comrades; their legacy is preserved by the EC-47 History Site.