Reuters
The U.S. Air Force has eliminated Boeing from its competition to develop a successor to the E-4B Nightwatch, Boeing confirmed on Friday, shaking up the battle to build the next version of the aircraft known as the "Doomsday Plane" due to its ability to survive a nuclear war. The move leaves privately-held defense contractor Sierra Nevada Corp as the lone company publicly vying for the Survivable Airborne Operations Center (SAOC) contract to eventually replace a fleet that has been in use since the 1970s. The Air Force, which plans to award a SAOC contract in 2024, declined to comment on whether other firms had submitted bids.