正式版 VC-25B 是美國空軍於 2018 年與波音簽約，採購並改裝的兩架 Boeing 747-8 客機。目前這兩架飛機仍在進行高度複雜的改裝工程，預計於 2028 年後正式服役。
新版空軍一號並不是單純換一架更大的飛機，而是將 Boeing 747-8 改造成一座能在全球執行任務的飛行白宮（Flying White House）。由於搭載美國最高領導人，VC-25B 的安全標準遠高於一般飛機。雖然完整細節仍屬機密，但外界普遍認為新機將搭載更先進的通訊、防護與電子系統，以提升面對現代威脅時的生存能力。
為什麼選擇 Boeing 747-8？
雖然現代民航市場已逐漸轉向雙引擎大型客機，例如 Boeing 777 與 Airbus A350，但 Boeing 747-8 仍有其他機型難以取代的優勢。
Boeing 747 曾經代表航空工業的黃金時代，而 VC-25B 很可能成為這款傳奇巨無霸客機最後一次以國家元首專機身分登場。新一代空軍一號不只是 Boeing 747 的延續，更是美國航空科技、軍事能力與國家象徵的結合。延伸閱讀：《知識》波音747 - 人們心中永遠的空中「巨無霸」客機
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The New Boeing 747-8 Air Force One: The Birth of the Next Flying White House
When people think of the U.S. presidential aircraft, Air Force One, many immediately picture the iconic blue-and-white Boeing 747. However, with the current Air Force One fleet having been in service for more than 30 years, the U.S. Air Force announced in January 2015 that a new generation of Boeing 747-8 aircraft would replace the current VC-25A and become the future presidential aircraft.
From VC-25A to VC-25B: The Next Generation of Air Force One
The current Air Force One fleet consists of two modified Boeing 747-200B aircraft, known as the VC-25A, which entered service in the 1990s. Over the years, these two aircraft have carried multiple U.S. presidents around the world. They are not only a means of transportation but also an important symbol of U.S. diplomacy and national power.
The next-generation VC-25B is based on the Boeing 747-8. Compared with the previous 747-200, the 747-8 features a longer fuselage, larger wings, improved fuel efficiency, and more advanced flight systems, providing better overall mission capabilities.
The VC-25B Bridge: An Early Replacement Air Force One
Because Boeing’s two official VC-25B aircraft have fallen behind schedule and are not expected to be delivered until after 2028, the U.S. Air Force introduced an interim aircraft called the VC-25B Bridge on June 19, 2026.
This aircraft was originally a VIP aircraft operated by the Qatari royal family. After being unused for a period of time, it was transferred by the Qatari government to the U.S. government in 2025. Since it needed to enter service quickly, the aircraft retains more of its original design and does not have the same level of modifications as the official VC-25B.
Although the VC-25B Bridge is equipped with advanced communication and defense systems, some capabilities are still not as complete as the future official version. Its main purpose is to serve as the U.S. president’s primary aircraft before the official Air Force One fleet is delivered.
A New Design: Moving Away from the Classic Blue-and-White Paint
The next-generation Air Force One will also introduce a new exterior design, replacing the iconic look that has been used for decades.
The traditional sky-blue Air Force One paint scheme originated during the administration of former U.S. President John F. Kennedy and has become one of the most recognizable presidential aircraft designs in the world.
The new VC-25B Bridge adopts a new paint design proposed during the Trump administration, featuring stronger elements inspired by the colors of the U.S. flag. The aircraft is expected to begin operations in the summer of 2026 and will play an important role until the official VC-25B is delivered in 2028.
The True Flying White House: The Official VC-25B
The official VC-25B program began in 2018, when the U.S. Air Force signed a contract with Boeing to purchase and modify two Boeing 747-8 aircraft. These two aircraft are currently undergoing highly complex modification work and are expected to officially enter service after 2028.
The new Air Force One is not simply a larger aircraft replacement. It is a transformation of the Boeing 747-8 into a global command platform known as the Flying White House.
Because it carries the U.S. president, the VC-25B must meet security standards far beyond those of normal aircraft. While many details remain classified, experts generally believe the new aircraft will include more advanced communication, protection, and electronic systems to improve survivability against modern threats.
Why Choose the Boeing 747-8?
Although the modern commercial aviation market has shifted toward large twin-engine aircraft such as the Boeing 777 and Airbus A350, the Boeing 747-8 still offers unique advantages that are difficult for other aircraft to replace.
Air Force One must do more than simply fly. It needs enough space for a large number of staff members, government officials, security personnel, and mission equipment. Therefore, a very large cabin is essential.
In addition, the four-engine design provides greater mission flexibility and additional safety advantages. During long-range global missions, even in extreme situations such as an engine failure, a four-engine configuration provides an extra level of operational security. For these reasons, the 747-8 remains one of the most suitable aircraft for conversion into the U.S. presidential aircraft.
The Boeing 747 once represented the golden era of aviation, and the VC-25B may become the final appearance of this legendary aircraft as a head-of-state transport. The next-generation Air Force One is not only a continuation of the Boeing 747 legacy but also a combination of American aviation technology, military capability, and national symbolism.
