Rare ‘Naked’ E-4B ‘Doomsday Plane’ Spotted Flying In Texas
Plane spotters in Fort Worth, Texas, caught a glimpse of something rare yesterday, one of the U.S. Air Force’s four E-4B Nightwatch jets flying completely stripped of paint and with much of its skin covered in a green zinc chromate coating. The Boeing 747-200-based E-4Bs are commonly called ‘doomsday planes’ as they serve as secure flying command posts for the president and other senior military officials so they can perform their duties, including directing nuclear strikes, even during the most serious crises.
Aviation photographer Tori Mae Fontana was kind enough to share pictures of the ‘naked’ E-4B with TWZ, which she captured as the aircraft left Meacham International Airport in Fort Worth yesterday. The jet used the callsign Spice 98 for the flight.
“So it was here at International Aerospace Coatings (IAC),” Fontana told TWZ. “They have painted E-4s before. I know they have previously had a Boeing contract. I am assuming it’s still current.”
Boeing, among others, uses green zinc chromate coatings to protect the skins of unpainted planes, typically before delivery. The standard paint scheme for the Nightwatch aircraft, also known as National Airborne Operations Centers (NAOC), is overall white with a blue cheat line on either side of the fuselage, as well as a blue section extending from the top of the nose to above the cockpit. Even without their normal paint job, the E-4Bs are readily identifiable by the large satellite communications (SATCOM) enclosure on top of the forward end of the fuselage, as well as other distinctive antennas on their dorsal spine and elsewhere along the fuselage. The jets also have an aerial refueling receptacle on the nose.
TWZ has reached out to the Air Force for more information, including whether there are any plans for a new paint scheme for this particular aircraft.
“I am also assuming it went back to San Antonio because Boeing has the contract for the E-4 maintenance,” Fontana added.
Online flight data shows that at least one E-4B, with the serial number 73-1676, has been at Kelly Field in San Antonio, Texas, since September 2024. That aircraft was tracked flying on August 23 and again on August 28 using the Spice 98 callsign. Boeing performs depot maintenance on the Nightwatch jets, as well as the Air Force’s two Boeing 747-200-based VC-25A Air Force One aircraft, at Kelly Field, which sits adjacent to Lackland Air Force Base.
Ensuring the readiness of the E-4B fleet, as well as keeping their highly sensitive systems up to date, is extremely important given the critical role the jets play as part of the U.S. government’s broader continuity of government plans. Those mechanisms are in place to ensure that national-level authorities, including the ability to launch nuclear retaliatory strikes, remain functional in the face of any contingency, as you can read more about here.
At the same time, sustaining the heavily modified E-4Bs has become increasingly challenging, due in large part to the age of the underlying Boeing 747-200 airliners they were converted from. Three of the E-4Bs started their Air Force careers as E-4A Advanced Airborne Command Posts (AACP), which began entering service in the 1970s. Those aircraft were later upgraded to the NAOC configuration in the 1980s, and were eventually joined by the fourth aircraft. The very last 747-200 rolled off Boeing’s production line in 1987, and few are still flying in any configuration globally today. Boeing ended production of the 747 series entirely in 2022.
The Air Force is now in the process of acquiring E-4C Survivable Airborne Operations Center (SAOC) jets to replace the aging E-4Bs. The Sierra Nevada Corporation (SNC) is converting those aircraft from newer 747-8 airframes acquired secondhand from Korean Air. SNC is doing the SAOC work at a facility in Dayton, Ohio, and announced earlier this month that it had begun some degree of “early risk reduction flight testing” to help “ensure on-time delivery of new aircraft to the USAF.”
When the E-4Cs may begin entering operational service is unclear. Questions also remain about how big the SAOC fleet may be in the end. SNC has previously said it negotiated the purchase of five 747-8s from Korean Air, but past reports have indicated that the Air Force may want between eight and 10 of the jets in the end.
Part of this uncertainty is intertwined with the U.S. Navy’s plans to replace its E-6B Mercury aircraft, which are also ‘doomsday’ planes, but are not configured to act as much more than robust flying command centers like the E-4s. The E-6Bs currently serve as key airborne control nodes for the Navy and Air Force legs of America’s nuclear deterrence triad, mission sets referred to as Take Charge and Move Out (TACAMO) and Looking Glass, respectively. At present, the plan is for the E-130J Phoenix II aircraft that are set to replace the Mercury jets to be configured for the TACAMO mission only. This, in turn, has raised the possibility that the future SAOC fleet could take on the Looking Glass mission, at least to a degree.
Regardless, until the E-4Cs begin flying operationally, the E-4Bs will need to continue performing their essential role, and will need continued depot maintenance and other work to ensure they remain as ready and capable as possible.
Howard Altman contributed to this story.
Special thanks again to Tori Mae Fontana for sharing the images of the ‘naked’ E-4B with us.
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