In the case that a backup for Air Force One is needed, its big brother steps in. His name is E-4B, AKA “Doomsday Plane.” The E-4B is an airborne nuclear bunker and command center that was designed during the Cold War as protection from a nuclear attack. Doomsday is always on standby, following Air Force One in case of an emergency. There are reportedly four Doomsday Planes in existence.
Both Air Force One and “Doomsday” are able to stay in the air for days and outrun even the blow of a nuclear explosion. Just like Air Force One planes, most of the Doomsday Planes’ capacities are classified information.
Flying Hospital
The aircraft has more facilities than you could ever think and dream of, and of course, it takes care of all the president's needs. One of those needs of great importance is the President's health. On the plane, you will find a fully stocked medical suite that houses a team of skilled and qualified doctors, nurses, and surgeons.
It includes an extensive pharmacy, emergency room equipment, and even a fold-out operating table. While the President's health is of utmost importance on the plane, all passengers are allowed to receive medical treatment. Most importantly, the plane is always prepared for any emergency.
4,000 Square Feet
The three decks of Air Force One stretch 4,000 square feet. That's a lot of square feet. Similar to the White House, the plane is equipped with everything the president might need for his usual work or daily life. There are conference rooms, a medical suite with an operating room, a kitchen, a master bedroom, and probably more things that we don't know of.
The President also has his own suite that features a large office, bathroom, and conference room. And for those accompanying the President, like senior advisors, Secret Service officers, and media, there are also special quarters for them.
650 MPH!
The President needs to be ready to travel anywhere in the world at a moment’s notice. For this reason, Air Force One can fly at a speed that is close to the speed of sound. The typical cruising speed of the Air Force One is 580 miles per hour. But, it can fly or, shall we say, zoom up to a speed of 650 mph. It can also fly high and reach a maximum altitude of 45,100 feet, far above commercial flights' height.
It's important for the plane to be able to travel fast, so when allies order a meeting promptly, the President can be almost anywhere within a few hours. And, of course, run from enemy aircraft at a record speed.
Mid-Air Refuel
If you recall the thrilling refueling scene in “Air Force One,” I’ll have you know that it is actually true. As with many military aircraft, AFO has a distinct ability to refuel in the air. This is usually reserved for emergency situations only. And is very rarely used.
When the plane is at 35,000 feet, it can extend a pole at its tail and give to a trailing aircraft. Because of this feature, the plane is able to stay in the air for as long as necessary and keep the president safe and far from any disasters on the ground.