Boeing VC-25 entered into a contract to purchase two of a bankrupt Russian firm's (Transaero) undelivered 747-8 Intercontinentals from Boeing, which is storing them in the Mojave Desert to prevent corrosion. These aircraft are to be retrofitted with telecommunications and security equipment to bring them to the required security level for the presidential aircraft. On 27 February 2018, the White House announced a $3.9 billion agreement with Boeing to modify two unsold 747-8s to replace the current VC-25A fleet. The new aircraft will be designated VC-25B. They are due to be delivered by 2024. The VC-25 "Air Force One" is a prominent
Boeing VC-25 board are connected with approximately 238 miles (383 km) of wiring, twice that of a regular 747. All wiring is covered with heavy shielding for protection from a nuclear electromagnetic pulse in the event of a nuclear attack. The aircraft also has electronic countermeasures (ECMs) to jam enemy radar, flares to avoid heat-seeking missiles, and chaff to avoid radar-guided missiles. All small arms and ammunition stores not under the physical possession of the Secret Service on board the VC-25s are stowed and secured by the Secret Service in separate locked compartments, each with a different locking mechanism for added security.