Who knows the introduction of US Air Force One?

It's no exaggeration to call "Air Force One" the White House flying in the air. It is ready to take off 24 hours a day; The 18 crew members and the most sophisticated instruments enable it to have the closest contact with the White House at any time and anywhere; It can provide all the services that the president needs. It can be said that US Air Force One is the most sophisticated and destructive aircraft in the world. The two Boeing 747－2B "Air Force One" planes currently in use were ordered by President Reagan and manufactured by Boeing Company. They were delivered in 1991 and cost 41 million US dollars. This new Boeing 747-2 is for the personal use of the President. Since September 21 alone, this plane has flown more than 17, kilometers with the President of the United States. The plane is six stories high, can carry 25 aides, and has the spacious space of an ordinary passenger plane that can accommodate 75 passengers. It can carry about 2, meals at one take-off. The engine room is about 1 square meters, with enough space to walk around, sleep, stretch and eat, just like a high-level office space. In case of military emergency, this "Air Force One" will be immediately protected by electromagnetic radar equipment, and all cables will be stopped immediately. In addition, a special and difficult-to-identify metal screen will cover all the windows of the residence, so that the plane itself is not easy to be tracked by inspection. The plane also has the ability to refuel in the air and can fly continuously without landing on the ground to add fuel. As long as the president gives the order, Air Force One can take him anywhere and give him the best service. The current Air Force One

The current US President Barack Obama's "Air Force One" is also the fuselage of Boeing 747. It is a Boeing 747-2B, the product number is VC-25a, the speed is 114 km/h, the flying altitude is 1, meters, and the endurance is more than 1, km. This machine was officially put into use in August 199. Edit the technical parameters of this paragraph

Length: 7.4m, almost the length of a football field. Height: 19.4 meters, equivalent to 6 stories high. Space: The interior space is 371.6 cubic meters. Weight: over 4 tons. Empty surface: the total space area inside the machine is 4 square meters. The main deck is 37 square meters, and there is a hall that can be used as a meeting room or a dining room. Both the president and the first lady have their own private rooms. Speed: the speed can reach 114 km/h. Pilot: If you want to be a pilot of Air Force One, you must have at least 2, hours of flying experience around the world and an impeccable flight record. Safety: It has an impeccable safety record and is regarded by Americans as the safest aircraft in the world. Seats: Usually reporters sit in the back of the cabin and the president's entourage sits in the front. The more important a person is, the closer he sits to the president. Wingman: In fact, there are always two presidential planes called "Air Force One", with serial numbers connected, with tail numbers of 28, and 29, respectively. Airport: Parked at Andrews Air Force Base, 16 kilometers away from the White House. Defense: It is a fully customized aircraft equipped with highly confidential defense systems, including anti-missile systems. Communication: There are 87 different telephone lines on the plane, 28 of which are eavesdropping-proof, and the calling range is unlimited. Commemorative: There are many things printed with presidential badges on the plane, including seat belts, pillows, blankets, tea cups, bath towels, tableware and razors.