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The 121st Air Refueling Wing (121 ARW) is a unit of the Ohio Air National Guard, stationed at Rickenbacker Air National Guard Base, Columbus, Ohio. If activated to federal service, the Wing is gained by the United States Air Force (USAF) Air Mobility Command .
Unbiunium, also known as eka-actinium or element 121, is a hypothetical chemical element; it has symbol Ubu and atomic number 121. Unbiunium and Ubu are the temporary systematic IUPAC name and symbol respectively, which are used until the element is discovered, confirmed, and a permanent name is decided upon.
The aircraft emergency frequency (also known in the USA as Guard) is a frequency used on the aircraft band reserved for emergency communications for aircraft in distress.The frequencies are 121.5 MHz for civilian, also known as International Air Distress (IAD), International Aeronautical Emergency Frequency, [1] or VHF Guard, [1] and 243.0 MHz—the second harmonic of VHF guard—for military ...
RAF squadron codes [1] squadron code unit Notes A: No. 1 Photographic Reconnaissance Unit RAF: 1 PRU A: No. 111 Operational Training Unit RAF: 111 OTU A: No. 112 Squadron RAF: Jul 1953 – Jan 1954 A: No. 118 Squadron RAF: Apr 1951 - Mar 1955 A: No. 120 Squadron RAF: 120 Sqn A: No. 14 (Advanced) Flying Training School: 14 (A) FTS A: No. 14 ...
A CAGE code is a unique identifier to label an entity (that is, a specific government agency or corporation at a specific site) that is a CDA, ODA, or MFR of the part defined by the drawing. One corporation can have many CAGE codes, as can one government, because each division, department, and site (campus) can have its own CAGE code.
Antimony (51 Sb) occurs in two stable isotopes, 121 Sb and 123 Sb. There are 37 artificial radioactive isotopes , the longest-lived of which are 125 Sb, with a half-life of 2.75856 years; 124 Sb, with half-life 60.2 days; and 126 Sb, with half-life 12.35 days.
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
Section 179 of the United States Internal Revenue Code (26 U.S.C. § 179), allows a taxpayer to elect to deduct the cost of certain types of property on their income taxes as an expense, rather than requiring the cost of the property to be capitalized and depreciated.