415th Fighter Aviation Regiment
415th may refer to: *415th Bombardment Group, inactive United States Air Force unit *415th Flight Test Flight (415 FLTF), squadron of the United States Air Force Reserves * 415th Tactical Fighter Squadron, inactive United States Air Force unit See also * 415 (number) *415, the year 415 (CDXV) of the Julian calendar *415 BC __NOTOC__ Year 415 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Cossus, Vibulanus, Volusus and Cincinnatus (or, less frequently, year 339 ''Ab urbe condita''). The denomination 415 BC ...

415th Bombardment Group
The 415th Bombardment Group is an inactive United States Air Force unit that served primarily as a training and demonstration unit. It was last part of Second Air Force, at Dalhart Army Air Field, Texas, where it was disbanded on 5 April 1944. In July 1985, the group was reconstituted as the 415th Tactical Missile Wing, but has not been active as a missile unit. History The 415th Bombardment Group was activated during World War II as a Third Air Force training and demonstration unit as part of the Army Air Force School of Applied Tactics. It was equipped with A-20s, A-24s, A-26s, B-25s, and P-39s. The group was reassigned to Second Air Force in early 1944 as a B-17 Flying Fortress replacement training unit. It was inactivated in early 1944 when the need for B-17 aircrews diminished.Maurer, ''Combat Squadrons'', p. 299 The 415th was reconstituted in inactive status as the 415th Tactical Missile Wing on 31 July 1985.Department of the Air Force/MPM Letter 648q, 31 July 1985, Subj ...
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415th Flight Test Flight
The 415th Flight Test Flight is a United States Air Force reserve unit. It is assigned to the 413th Flight Test Group of Air Force Reserve Command, stationed at Joint Base San Antonio-Randolph, Texas. The squadron was first activated during World War II as the 25th Reconnaissance Squadron. After redesignation as the 415th Bombardment Squadron, it saw combat in the Mediterranean Theater of Operations, participating in the low level attack on oil refineries near Ploiești, Romania. It earned two Distinguished Unit Citations for its combat operations. After VE Day the squadron returned to the United States and trained with Boeing B-29 Superfortresses until inactivating in Spring 1946. The squadron was reactivated in 1958 when Strategic Air Command (SAC) reorganized its Boeing B-47 Stratojet wings and placed one third of its bombers on ground alert. It was inactivated in 1962, when SAC's alert status was altered. In 1994, the squadron was consolidated with the 6515th Test S ...
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415th Tactical Fighter Squadron
The 415th Special Operations Squadron is a United States Air Force unit. It is assigned to the 58th Operations Group at Kirtland Air Force Base, New Mexico. The 415th Night Fighter Squadron was formed in February 1943, and it carried out missions in the Mediterranean Theatre of Operations, and then in northwestern Europe during World War II. It was inactivated in 1947, with its personnel and aircraft being transferred to another squadron. Reactivated in 2011, the squadron replaced the 58th Special Operations Wing, Detachment 1. Its mission is to train special operations personnel operating both the HC-130J Combat King II and the MC-130J Commando II. History World War II During World War II, the 415th Night Fighter Squadron was activated on 10 February 1943. At that time, the squadron was assigned to the Army Air Forces School of Applied Tactics for training in the P-70 night fighter, a converted Douglas A-20 Havoc medium bomber. That training included daylight and nighttime ...
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415 (number)
400 (four hundred) is the natural number following 399 and preceding 401. Mathematical properties 400 is the square of 20. 400 is the sum of the powers of 7 from 0 to 3, thus making it a repdigit in base 7 (1111). A circle is divided into 400 grads, which is equal to 360 degrees and 2π radians. (Degrees and radians are the SI accepted units). 400 is a self number in base 10, since there is no integer that added to the sum of its own digits results in 400. On the other hand, 400 is divisible by the sum of its own base 10 digits, making it a Harshad number. Other fields Four hundred is also * The Four Hundred (oligarchy) of ancient Athens. * An HTTP status code for a bad client request. * The Four Hundred (sometimes The Four Hundred Club) a phrase meaning the wealthiest, most famous, or most powerful social group (see, e.g., Ward McAllister), leading to the generation of such lists as the Forbes 400. * The Atari 400 home computer. * A former limited stop bus route wh ...
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