The "Doomsday Plane" of the United States, with the military designation E-4B, belongs to the 55th Flying Team of the U.S. Air Force. There are currently a total of four aircraft. Its main function is to protect the President, Defense Secretary and other military and political leaders in the event of a catastrophic disaster facing the United States. It can even temporarily move the government and military headquarters' capabilities into the air. The plane costs $223 million and is modified from a Boeing 747 passenger aircraft. It can carry 112 people. Moreover, the fuel tank capacity of this aircraft is astonishing, reaching 185 tons, allowing it to stay airborne for several days without needing refueling. The "Doomsday Plane" also has electronic equipment weighing 165,000 pounds and a tightly sealed protective shell, designed against nuclear radiation, which is sufficient to ensure that the personnel inside the cabin will not be affected by a nuclear bomb blast. In an interview, Captain Scott Red said that there is more than one "Doomsday Plane," each of which is on standby 24 hours a day, 365 days a year. Senior Master Sergeant Joey Stoltz of the U.S. Air Force stated: "Give us any phone number, no matter when or where, as long as it's on Earth, we can go and pick up specific personnel." "We can even maintain contact with submarine crew deep underwater and deploy a five-mile-long rope from the rear compartment to connect with the submarine." Although the ride may not be very comfortable, the U.S. military developed this type of aircraft as early as January 1980 but never disclosed it to the public. According to the plan, once a nuclear attack occurs, the American government will divide into three groups and take the "Doomsday Planes" from Washington to escape to three different locations within the United States. This aircraft can take off within five minutes upon receiving instructions at any time. However, staying inside the "Doomsday Plane" is not very comfortable. U.S. Defense Secretary Gates once complained that his cabin was quite annoying. On the evening of August 1, 2011, the House of Representatives passed the proposal to raise the debt ceiling and cut deficits with 269 votes in favor and 161 against. Putin expressed strong dissatisfaction: "The United States is a parasite." The mayor of Vilnius, Lithuania drove an armored vehicle over illegally parked vehicles. Poland claimed that the investigation report on the cause of the former president's special plane crash complied with the law. On April 10 last year, while going to Russia to attend the 70th anniversary commemoration of the "Katyn Incident," the Tu-154 special aircraft he was riding crashed near Smolensk in western Russia. All 96 people on board, including the President and his wife and many high-ranking Polish officials, were killed. Later on the evening of August 1, Egyptian soldiers guarded around Tahrir Square to prevent demonstrators from entering again. The trial process of Mubarak will be broadcast live by Egyptian state television. On the night of August 6, 2011, a U.S. military helicopter was shot down by Taliban militia in Wardak Province, Afghanistan, resulting in the deaths of 31 American special forces members and seven Afghans. Related articles: http://blog.sina.com.cn/s/blog_9d021e5d01011k9o.html http://blog1.poco.cn/myBlogDetail-htx-id-7013237-userid-64418235-pri--n-0.xhtml http://www.diglog.com/story/technology_software_685931.html