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Lockheed EC-121 Warning Star Airborne Early-Warning and Radar-Surveillance Family

The EC-121 Warning Star was a military airborne early-warning and radar-surveillance family derived from Lockheed's Constellation line. Large dorsal and ventral radomes carried search and control equipment that extended air-defense detection beyond ground radar coverage; U.S. Navy and Air Force crews also used specialized variants for reconnaissance and command-and-control missions. Its long service from the 1950s through the Cold War made it a foundational predecessor to later AWACS systems.

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Identity

Aliases
EC-121Warning StarPO-1WWV-2RC-121
Family Name
Lockheed EC-121 Warning Star
Full Name
Lockheed EC-121 Warning Star Airborne Early-Warning and Radar-Surveillance Family
Roles
militaryreconnaissance
Status
retired
Type
aircraft

Details

Aircraft Specs
Configuration
fixed_wing
Operating Modes
land
Takeoff Landing Capabilities
conventional
Description
The EC-121 Warning Star was a military airborne early-warning and radar-surveillance family derived from Lockheed's Constellation line. Large dorsal and ventral radomes carried search and control equipment that extended air-defense detection beyond ground radar coverage; U.S. Navy and Air Force crews also used specialized variants for reconnaissance and command-and-control missions. Its long service from the 1950s through the Cold War made it a foundational predecessor to later AWACS systems.
First Flight Year
1,949
Manufacturer

Assets & Meta

Creation Time
August 7, 2026 at 02:14:45 UTC
Updated Time
August 7, 2026 at 02:14:45 UTC