Emblem of the United States Air Force
The United States Air Force (USAF) is the aerial and space warfare service branch of the United States Armed Forces. It is one of the five branches of the United States Armed Forces, and one of the seven American uniformed services. Initially established as a part of the United States Army on 1 August 1907, the USAF was formed as a separate branch of the U.S. Armed Forces on 18 September 1947 with the passing of the National Security Act of 1947. It is the youngest branch of the U.S. Armed Forces, and the fourth in order of precedence. The USAF is the largest and most technologically advanced air force in the world. The Air Force articulates its core missions as air and space superiority, global integrated ISR, rapid global mobility, global strike, and command and control.
The U.S. Air Force is a military service branch organized within the Department of the Air Force, one of the three military departments of the Department of Defense. The Air Force, through the Department of the Air Force, is headed by the civilian Secretary of the Air Force, who reports to the Secretary of Defense, and is appointed by the President with Senate confirmation. The highest-ranking military officer in the Air Force is the Chief of Staff of the Air Force, who exercises supervision over Air Force units and serves as one of the Joint Chiefs of Staff. Air Force forces are assigned, as directed by the Secretary of Defense, to the combatant commanders, and neither the Secretary of the Air Force nor the Chief of Staff of the Air Force have operational command authority over them.
Along with conducting independent air and space operations, the U.S. Air Force provides air support for land and naval forces and aids in the recovery of troops in the field. As of 2017 , the service operates more than 5,369 military aircraft, 406 ICBMs and 170 military satellites. It has a $161 billion budget and is the second largest service branch, with 318,415 active duty personnel, 140,169 civilian personnel, 69,200 Air Force Reserve personnel, and 105,700 Air National Guard personnel.
Aerospace vehicle spotlight
The T-37 Tweet is a two-seat trainer aircraft. It was designed by Cessna in the mid-1950s in response to the USAF request for a jet trainer. The Cessna design featured twin jet propulsion and side-by-side seating to facilitate flight instruction. Production began in 1955 with the first aircraft entering operations in 1957. The aircraft earned the nickname, "Tweet," because of a constant high-pitch whistle emitted by the aircraft in flight.
The USAF acquired a total of 996 of the aircraft between 1955 and 1973. The Tweet has served as the USAF's basic flight trainer since its first employment. The T-37 was phased out of the inventory in mid-2009 and replaced by the T-6 Texan II for basic flight training.
Cessna did produce a weaponized model of the T-37 for foreign sales. A total of 273 of these 'C' models were built through 1975.
General Teed Michael Moseley, KBE, was the 18th Chief of Staff of the United States Air Force. He assumed the position during a ceremony at Andrews Air Force Base on September 2, 2005.
As Chief, he served as the senior uniformed Air Force officer responsible for the organization, training and equipage of more than 700,000 active-duty, Guard, Reserve and civilian forces serving in the United States and overseas. As a member of the Joint Chiefs of Staff, the general and other service chiefs functioned as military advisers to the Secretary of Defense, National Security Council, and the President. He resigned from his position in June 2008 following a serise of incidents involving nuclear weapon security.