美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）一架 C-5B 运输机在起飞前排队。（U.S. Air Force aircraft assigned to the 60th Air Mobility Wing line up prior to takeoff at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）一架 C-5B 运输机在起飞前排队。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（A 22-aircraft "freedom launch" took place at Travis AFB, Calif., Sept. 11, 2013. Seven C-17 Globemaster IIIs, 11 KC-10 Extenders and four C-5B Galaxies from the 60th Air Mobility Wing lined up in what is historically referred to as an "elephant walk," then launched consecutively over 36 minutes to take part in Air Mobility Command missions. The first plane in the lineup, a C-17, launched at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center in New York City 12 years earlier.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）一架 C-5B 运输机正在起飞。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（A U.S. Air Force C-5 Galaxy aircraft assigned to the 60th Air Mobility Wing takes off at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）四架 C-5B 运输机在起飞前排队。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（U.S. Air Force C-5 Galaxy aircraft assigned to the 60th Air Mobility Wing line up prior to takeoff at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）三架 C-5B 运输机在起飞前排队，跑道上另一架 KC-10 加油机正在起飞。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（U.S. Air Force C-5 Galaxy aircraft line up as a KC-10 Extender aircraft takes off at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft assigned to the 60th Air Mobility Wing launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）的 KC-10A 加油机在起飞前排队。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（U.S. Air Force KC-10 Extender aircraft assigned to the 60th Air Mobility Wing line up prior to takeoff at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）一架 KC-10A 加油机正在起飞。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（A U.S. Air Force KC-10 Extender aircraft assigned to the 60th Air Mobility Wing takes off at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）的 KC-10A 加油机开始滑出加入起飞编队。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（U.S. Air Force aircraft assigned to the 60th Air Mobility Wing stage prior to takeoff at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）的 KC-10A 加油机在起飞前排队。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（A U.S. Air Force C-17 Globemaster III aircraft assigned to the 60th Air Mobility Wing taxis prior to takeoff at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）

美国加利福尼亚州特拉维斯空军基地，9.11恐怖袭击12周年纪念活动中，美国空军第60空中机动联队（60AMW）的 KC-10A 加油机和 C-5B 运输机在起飞前排队。整个纪念飞行机队共有22架大型军机组成，在36分钟内依次升空。（U.S. Air Force aircraft assigned to the 60th Air Mobility Wing line up prior to takeoff at Travis Air Force Base, Calif., Sept. 11, 2013, as part of the Freedom Launch honoring the victims of the 9/11 terrorist attacks. The first plane departed at 8:46 a.m., the same time terrorists crashed American Airlines Flight 11 into the North Tower of the World Trade Center, with the remaining 21 aircraft launching consecutively during a 36-minute time frame. Terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed near Shanksville, Pa. Nearly 3,000 people died in the attacks.）