



| Name | E-4B Nightwatch |
| Manufacturer | Boeing |
| Country of Origin | United States |
| Introduction / In Service Since | 1974 / Active |
| Status | Operational |
| Category | Strategic Command Aircraft |
| Crew | Up to 112 |
| Unit Cost | 220 to 250 million USD |
| Length | 231 ft |
| Wingspan | 195 ft |
| Height | 63 ft |
| Wing Area | 5,500 sq ft |
| Empty Weight | 370,000 lb |
| Maximum Takeoff Weight (MTOW) | 833,000 lb |
| Maximum Speed | 610 mph |
| Range | 7,000+ miles |
| Combat Radius | Global |
| Service Ceiling | 45,100 ft |
| Rate of Climb | 2,000 ft per min |
| Engine Type | 4x GE CF6 turbofans |
| Thrust (per engine) | 52,500 lbf |
| Total Thrust | 210,000 lbf |
| Internal Payload Capacity | Classified |
| Weapons Bay | None |
| Compatible Weapons | None |
| Hardpoints | None |
| Radar System | Multi mode surveillance radar |
| Navigation | INS, GPS |
| Electronic Warfare (EW) | Extensive ECM and EMP hardening |
| Stealth Features | None |
| Primary Operator | US Air Force |
| Conflict Usage | Cold War, Global Crisis Operations |
| Notable Missions | Presidential continuity operations |
| Variants | E-4A, E-4B |
| Successor / Future Replacement | Survivable Airborne Operations Center |
| Notable Features | EMP hardening, global comms |
| Estimated Operational Life | 2030s |
The E-4B Nightwatch, often called the doomsday plane, is one of the most critical aircraft in the US military inventory. It serves as the National Airborne Operations Center, designed to keep US command authority alive during nuclear war, major attacks, or national emergencies. When ground command centers are threatened or destroyed, the E-4B becomes the flying nerve center of American strategic forces.
Built to survive extreme conditions, the aircraft is hardened against nuclear effects, electromagnetic pulses, and cyber threats. It can operate for days with aerial refueling and maintain constant contact with US nuclear forces worldwide.
The E-4B is manufactured by Boeing, based on the Boeing 747-200 airframe. The aircraft was developed during the Cold War to ensure continuity of government and military command.
The E-4B has a maximum speed of about 610 mph and an unrefueled range exceeding 7,000 miles. With aerial refueling, it can remain airborne for extended periods, supporting long duration missions across the globe.
The estimated unit cost of the E-4B Nightwatch is between 220 and 250 million dollars, excluding decades of upgrades, maintenance, and mission systems.
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