E-4B
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May- 2025 -8 MayAir
Fourth Boeing 747 Arrives at SNC Factory for ‘Doomsday’ Plane Modification
Sierra Nevada Corporation (SNC) has accepted the fourth Boeing 747-8i airliner to be converted into the US Air Force’s E-4C Doomsday system in Dayton, Ohio.
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Nov- 2024 -8 NovemberAir
Second Future E-4C Doomsday Aircraft Arrives in Ohio
Sierra Nevada Corporation has accepted the second Boeing 747-8i to be modified into the US Air Force’s E-4C Doomsday aircraft in Dayton, Ohio.
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May- 2024 -24 MayAir
Collins Aerospace, Rolls-Royce Join US Air Force ‘Doomsday’ Aircraft Program
Collins Aerospace and Rolls-Royce have announced partnerships with SNC to support the US Air Force’s “Doomsday” aircraft development.
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Apr- 2024 -29 AprilAmericas
USAF Awards Sierra Nevada $13B ‘Doomsday’ Plane Contract
The US Air Force has contracted Sierra Nevada to develop and produce the Survivable Airborne Operations Center to replace the E-4B.
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