SOS is the international Morse code distress signal (· · · – – – · · ·). This distress signal was first adopted by the German government in radio regulations effective April 1, 1905, and became the worldwide standard under the second International Radiotelegraphic Convention, which was signed on November 3, 1906, and became effective on July 1, 1908. SOS remained the maritime radio distress signal until 1999, when it was replaced by the Global Maritime Distress and Safety System. SOS is still recognized as a visual distress signal.

The SOS distress signal is a continuous sequence of three dits, three dahs, and three dits, all run together without letter spacing. In International Morse Code, three dits form the letter S, and three dahs make the letter O, so "SOS" became an easy way to remember the order of the dits and dahs. In modern terminology, SOS is a Morse "procedural signal" or "prosign", and the formal way to write it is with a bar above the letters: SOS.

In popular usage, SOS became associated with such phrases as "Save Our Ship" or "Save Our Souls" or "Send Out Succour". SOS is only one of several ways that the combination could have been written; VTB, for example, would produce exactly the same sound, but SOS was chosen to describe this combination. SOS is the only nine-element signal in Morse code, making it more easily recognizable, as no other symbol uses more than eight elements.

The 21st Special Operations Squadron is a unit within the 352d Special Operations Group (352 SOG), United States Air Force, United States European Command, and was based at Royal Air Force base RAF Mildenhall in Suffolk, eastern England.

Mission

The 21st Special Operations Squadron, which fell under the 352nd Special Operations Group, RAF Mildenhall, UK, was inactivated on 31 October 2007 with the inactivation ceremony taking place at RAF Mildenhall, UK on 9 October temporarily ending the Air Force Special Operations vertical lift mission in Europe.

The inactivation of the Dust Devils was the first step in preparation for the arrival of the CV-22 tilt-rotor aircraft.

The 21st Special Operations Squadron's mission consisted of day or night, all-weather, low-level penetration of denied territory to provide infiltration, exfiltration, resupply, or fire support for elite air, ground, and naval forces. The unique capabilities of the MH-53J permitted the squadron to operate from unprepared landing zones.

The 3d Special Operations Squadron (3 SOS) flies MQ-1 Predator Remotely Piloted Aircraft (RPA) and is currently located at Cannon Air Force Base in Clovis, New Mexico. The 3d SOS is under the command of the Air Force Special Operations Command.

Mission

Currently operates Predators engaged in Enduring Freedom.

History

Organized in France in April 1918, the Photographic Section No. 1 processed aerial photographs taken by flying units working with the I Army Corps (American) and French XXXVIII Army Corps, 5 April–November 1918. The 1 Photographic Section, from September 1919 until becoming the 3 Observation Squadron on 1 June 1937, processed aerial photography of associated observation squadrons in Texas.

At Langley Field, VA, the squadron engaged in aerial observation work with the Coast Artillery School until April 1942. It supported ground forces on maneuvers during 1942, and served as a training and demonstration unit January 1943 – February 1944. The squadron was not manned or equipped, 1 Mar – 2 July 1944.

Beta (UK /ˈbiːtə/ or US /ˈbeɪtə/; uppercase Β, lowercase β, or cursive ϐ; Ancient Greek: βῆτα bḗta or Modern Greek: βήτα víta) is the second letter of the Greek alphabet. In Ancient Greek, beta represented the voiced bilabial plosive /b/. In Modern Greek, it represents the voiced labiodental fricative /v/. Letters that arose from beta include the Roman letter ⟨B⟩ and the Cyrillic letters ⟨Б⟩ and ⟨В⟩.

Name

Like the names of most other Greek letters, the name of beta was adopted from the acrophonic name of the corresponding letter in Phoenician, which was the common Semitic word *bayt ('house'). In Greek, the name was βῆτα bêta, pronounced [bɛ̂ːta] in Ancient Greek. It is spelled βήτα in modern monotonic orthography, and pronounced [ˈvita]. In US English, the name is pronounced /ˈbeɪtə/, while in British English it is pronounced /ˈbiːtə/.

History

The letter beta was derived from the Phoenician letter beth .

The letter Β had the largest number of highly divergent local forms. Besides the standard form (either rounded or pointed, ), there were forms as varied as (Gortyn), and (Thera), (Argos), (Melos), (Corinth), (Megara, Byzantium), (Cyclades).

Vranac (pronounced [ʋrǎːnats]), Montenegrin and Serbian Cyrillic: Вранац) is a variety of grapes and a red wine from Montenegro. It is protected as intellectual property and Montenegrin geographical indication of origin since 1977. Vranac is considered the most important variety of grape in Montenegro and one of the most important in the Republic of Macedonia (where it is known as Vranec). As it is a local specialty and due to its localized geography, it produces a dry red wine of a unique taste and character that is synonymous with the Balkans. Vranac berries are large and deeply colored, with its dark berries growing on moderately vigorous and very productive vines. The fruit is harvested by hand. Depending on the area, this harvest can begin from mid-September and continue into October.

Young Vranac wines have a bright purple hue and a nose full of red berries and fruit jams. Its firm tannin structure provides crispness and richness, with medium to high levels of extraction and acidity. After a year or two of aging, the purple develops into an intense dark ruby and the nose develops a more complex aroma that can include hints of cinnamon, chocolate, liquorice, flowers, black fruits, herbs and even woods such as oak. The taste is subtle, round, and full. It loses its sharpness and develops a longer and smoother finish.