August 21, 1955 (Sunday)
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- The Kelly-Hopkinsville encounter, a claimed alien and UFO encounter in Christian County, Kentucky.
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The following events occurred in August 1955:
| | This section is empty. You can help by adding to it. (October 2015) |
| | This section is empty. You can help by adding to it. (October 2015) |
Vitamins are organic molecules that are essential to an organism in small quantities for proper metabolic function. Essential nutrients cannot be synthesized in the organism in sufficient quantities for survival, and therefore must be obtained through the diet. For example, vitamin C can be synthesized by some species but not by others; it is not considered a vitamin in the first instance but is in the second. Most vitamins are not single molecules, but groups of related molecules called vitamers. For example, there are eight vitamers of vitamin E: four tocopherols and four tocotrienols.
Majel Barrett-Roddenberry was an American actress. She was best known for her roles as various characters in the Star Trek franchise: Nurse Christine Chapel, Number One, Lwaxana Troi, and the voice of most onboard computer interfaces throughout the series from 1966 to 2023. She married Star Trek creator Gene Roddenberry in 1969. As his wife and given her relationship with Star Trek—participating in some way in every series during her lifetime—she is sometimes referred to as "the First Lady of Star Trek".
Vitamin deficiency is the condition of a long-term lack of a vitamin. When caused by not enough vitamin intake it is classified as a primary deficiency, whereas when due to an underlying disorder such as malabsorption it is called a secondary deficiency. An underlying disorder can have 2 main causes:
The Lockheed P-3 Orion is a four-engined, turboprop anti-submarine and maritime surveillance aircraft developed for the United States Navy and introduced in the 1960s. Lockheed based it on the L-188 Electra commercial airliner; it is easily distinguished from the Electra by its distinctive tail stinger or "MAD" boom, used for the magnetic anomaly detection (MAD) of submarines.
This is a list of aviation-related events from 1981.
The Lockheed Constellation ("Connie") is a propeller-driven, four-engined airliner built by Lockheed Corporation starting in 1943. The Constellation series was the first pressurized-cabin civil airliner series to go into widespread use. Its pressurized cabin enabled commercial passengers to fly well above most bad weather for the first time, thus significantly improving the general safety and ease of air travel.
A maritime patrol aircraft (MPA), also known as a patrol aircraft, maritime reconnaissance aircraft, maritime surveillance aircraft, or by the older American term patrol bomber, is a fixed-wing aircraft designed to operate for long durations over water in maritime patrol roles — in particular anti-submarine warfare (ASW), anti-ship warfare (AShW), and search and rescue (SAR).
The Lockheed P-2 Neptune is a maritime patrol and anti-submarine warfare (ASW) aircraft. It was developed for the US Navy by Lockheed to replace the Lockheed PV-1 Ventura and PV-2 Harpoon, and was replaced in turn by the Lockheed P-3 Orion. Designed as a land-based aircraft, the Neptune never made a carrier landing, but a small number were converted and deployed as carrier-launched, stop-gap nuclear bombers that would have to land on shore or ditch. The type was successful in export, and saw service with several armed forces.
This is a list of aviation-related events from 1920:
This is a list of aviation-related events from 1949:
This is a list of aviation-related events from 1952:
This is a list of aviation-related events from 1955.
This is a list of aviation-related events from 1954:
This is a list of aviation-related events from 1960.
Hurricane hunters, typhoon hunters, or cyclone hunters are aircrews that fly into tropical cyclones to gather weather data. In the United States, the organizations that fly these missions are the United States Air Force Reserve's 53rd Weather Reconnaissance Squadron and the National Oceanic and Atmospheric Administration's Hurricane Hunters. Such missions have also been flown by Navy units and other Air Force and NOAA units. Other organizations also fly these missions, such as Government Flying Service Hong Kong.
The Uruguayan Air Force is the air service branch of the Armed Forces of Uruguay. Originally created as part of the National Army of Uruguay, the Air Force was established as a separate branch on December 4, 1953. It is the youngest and also the smallest branch of the Armed Forces of Uruguay. In 1977 it was determined that the mission of the Air Force is to conduct strategic and tactical aerospace operations on behalf of the national defense, exercising the sovereignty of the Uruguayan airspace and defending the independence, integrity, constitution and laws of the country. The Air Force must also conduct search and rescue missions and plan, propose, execute and supervise the necessary measures for the development of the aerospace potential, while providing any necessary and possible logistical support during the natural disasters that the country may suffer. Since 1985 this has been always carried out under the command of the President of Uruguay, and according to the Minister of National Defense.
The Fairchild C-119 Flying Boxcar was an American military transport aircraft developed from the World War II-era Fairchild C-82 Packet, designed to carry cargo, personnel, litter patients, and mechanized equipment, and to drop cargo and troops by parachute. The first C-119 made its initial flight in November 1947, and by the time production ceased in 1955, more than 1,100 had been built.
Army Aviation Centre (AAC) Middle Wallop is a British Army airfield located near the Hampshire village of Middle Wallop, used for Army Air Corps training. The base hosts 2 (Training) Regiment AAC and 7 (Training) Regiment AAC under the umbrella of the Army Aviation Centre. 2 (Training) Regiment performs ground training; 7 (Training) Regiment trains aircrew on AAC aircraft after they complete basic training at RAF Shawbury.
The 1955 Hawaii R6D-1 crash was an accident involving a Douglas R6D-1 Liftmaster of the United States Navy which crashed into a mountain peak in Hawaii on 22 March 1955, killing all 66 people on board. At the time, it was the worst crash involving any variant of the Douglas DC-6 airliner the second-worst aviation accident in U.S. history, and one of the worst air accidents anywhere in history, and it equaled the 11 August mid-air collision of two United States Air Force C-119G Flying Boxcars over West Germany and the 6 October United Air Lines Flight 409 crash as the deadliest air accident of 1955. It remains the worst air disaster in the history of Hawaii and the deadliest accident involving a heavier-than-air aircraft in the history of United States naval aviation.
The AN/APS-20 was an airborne early warning, anti-submarine, maritime surveillance and weather radar developed in the United States in the 1940s. Entering service in 1945, it served for nearly half a century, finally being retired in 1991. Initially developed at Massachusetts Institute of Technology (MIT) under Project Cadillac, the radar was developed to be carried by aircraft to extend the sensor range of ships by placing a radar at altitude. Although developed for carrier-borne operation, first being installed in the single-engined General Motors TBM-3W Avenger, it was also used in larger four-engined airframes, the last being a fleet of Avro Shackleton AEW.2 which were converted from maritime patrol aircraft. Similarly, although developed for detecting aircraft, it saw extensive service in anti-submarine and maritime patrol roles and was one of the first radars to be used in researching extreme weather like hurricanes by agencies like the Environmental Science Services Administration (ESSA). As well as the United States, the radar was used by a large number of services in other countries, including the French Navy, Japan Maritime Self-Defense Force (JMSDF), Royal Air Force (RAF) and Royal Canadian Air Force (RCAF). Early versions of the radar could see a low-flying aircraft at 65 nautical miles and a ship at 200 nautical miles. This was improved, so that later versions had a range against aerial targets of 115 nautical miles.