 |
A tactical beacon or TACBE as it is often known to be used by British and American armed forces (usually by Special Forces) for many years. Its primary role is to contact planes or helicopters which may be overhead or nearby. The system's main use is a distress signal, sending out a constant danger message to AWACS planes. However, it can also be used as a short range communications device with local aircraft. Using it indicates that one is in danger and needs help.
A beacon is an intentionally conspicuous device designed to attract attention to a specific location. A common example is the lighthouse, which draws attention to a fixed point that can be used to navigate around obstacles or into port. More modern examples include a variety of radio beacons that can be read on radio direction finders in all weather, and radar transponders that appear on radar displays.
The smoke signal is one of the oldest forms of long-distance communication. It is a form of visual communication used over a long distance. In general smoke signals are used to transmit news, signal danger, or to gather people to a common area.
A distress signal, also known as a distress call, is an internationally recognized means for obtaining help. Distress signals are communicated by transmitting radio signals, displaying a visually observable item or illumination, or making a sound audible from a distance.
The basic principles of air navigation are identical to general navigation, which includes the process of planning, recording, and controlling the movement of a craft from one place to another.
The planes of the Dungeons & Dragons roleplaying game constitute the multiverse in which the game takes place. Each plane is a universe with its own rules with regard to gravity, geography, magic and morality. There have been various official cosmologies over the course of the different editions of the game; these cosmologies describe the structure of the standard Dungeons & Dragons multiverse.
Afon Mellte or the River Mellte is a river in south Wales. It is formed by the confluence of the Afon Llia and the Afon Dringarth. It then flows south through the village of Ystradfellte to Pontneddfechan where it joins with the Nedd Fechan to become the River Neath. The river derives its name from 'mellt' - the Welsh word for 'lightning' - after its tendency to rise and fall rapidly in response to heavy rainfall.
The Flickering Torch Mystery is Volume 22 in the original The Hardy Boys Mystery Stories published by Grosset & Dunlap. The book was written for the Stratemeyer Syndicate by Leslie McFarlane in 1943. Between 1959 and 1973 the first 38 volumes of the series were systematically revised as part of a project directed by Harriet Adams, Edward Stratemeyer's daughter. The original version of the book was rewritten in 1971 by Vincent Buranelli resulting in two different stories with the same title.
The International Cospas-Sarsat Programme is a satellite-aided search and rescue (SAR) initiative. It is organized as a treaty-based, nonprofit, intergovernmental, humanitarian cooperative of 45 nations and agencies. It is dedicated to detecting and locating emergency locator radio beacons activated by persons, aircraft or vessels in distress, and forwarding this alert information to authorities that can take action for rescue. Member countries support the distribution of distress alerts using a constellation of around 65 satellites orbiting the Earth which carry transponders and signal processors capable of locating an emergency beacon anywhere on Earth transmitting on the Cospas-Sarsat frequency of 406 MHz.
Plum Island Airport, in Newburyport, Massachusetts, is a privately owned, public-use airport owned by Historic New England and operated by Plum Island Aerodrome, Inc., a non-profit corporation. It has two runways, averages 54 flights per week, and has approximately 8 based aircraft.
A navigational aid (NAVAID), also known as aid to navigation (ATON), is any sort of signal, markers or guidance equipment which aids the traveler in navigation, usually nautical or aviation travel. Common types of such aids include lighthouses, buoys, fog signals, and day beacons.
On June 22, 1951, Pan Am Flight 151, flown by the Lockheed L-049 Constellation propliner Clipper Great Republic crashed into a West African hill at an elevation of 1,050 ft (320 m) near the village of Sanoyie in Bong County, Liberia. All 31 passengers and nine crew on board were killed.
"A Clear and Present Danger" is the 14th episode and mid-season premiere of the third season of the NBC superhero drama series Heroes and 48th episode overall. It aired on February 2, 2009. The episode is the beginning of Volume 4: "Fugitives". It marks the first time a season of Heroes has contained more than one volume. Originally, season two was planned to consist of three volumes, but was reduced to one volume due to the 2007–2008 Writers Guild of America strike.
Invicta International Airlines Flight 435 (IM435) was a Vickers Vanguard 952, flying from Bristol Lulsgate to Basel-Mulhouse, which crashed into a forested hillside near Hochwald, Switzerland on 10 April 1973. The aircraft somersaulted and broke up, killing 108 people, with 37 survivors. To date, this is the deadliest accident involving a Vickers Vanguard and the deadliest aviation accident to occur on Swiss soil. Many of the 139 passengers on the charter flight were women, members of the Axbridge Ladies Guild, from the Somerset towns and villages of Axbridge, Cheddar, Winscombe and Congresbury. The accident left 55 children motherless and became known in the British media as the Basle air crash.
Ras Mishab Airport is a small military airfield in the naval complex of Ras Mishab on the Persian Gulf about 160 kilometres (99 mi) northwest of Jubail in the Eastern Province of Saudi Arabia. It occupies an area of around 2.8 square kilometres (1.1 sq mi) and is 850 metres (0.5 mi) from the shore.
The Second Battle of Benghazi was a battle in the Libyan Civil War between army units and militiamen loyal to Libyan leader Muammar Gaddafi, and anti-Gaddafi forces in Benghazi. The battle marked the start of a United Nations-mandated military intervention in the conflict, with fighter jets from the French Air Force attacking and destroying several pro-Gaddafi units, forcing them to retreat.
Aero Flight 217 was a domestic passenger flight from Helsinki, Finland, to Mariehamn in the autonomous territory of Åland, operated by the Finnish flag carrier Aero O/Y. On 8 November 1963, the aircraft serving the flight crashed in poor visibility while attempting to land on a non-precision approach at Mariehamn Airport in the municipality of Jomala, resulting in the deaths of 22 people out of 25 on board. The crash remains the second most deadly aviation accident in Finland, the first being Aero Flight 311 almost two years earlier.
The Hotel Beacon is a Beaux-Arts, 24-story building on the Upper West Side of Manhattan in New York City, designed by Walter W. Ahlschlager. It was built in 1928 at 2130 Broadway, at the corner with 75th Street, on the site of the Tilden Club House and the Dakota Stables.
An emergency locator beacon is a radio beacon, a portable battery powered radio transmitter, used to locate airplanes, vessels, and persons in distress and in need of immediate rescue. Various types of emergency locator beacons are carried by aircraft, ships, vehicles, hikers and cross-country skiers. In case of an emergency, such as the aircraft crashing, the ship sinking, or a hiker becoming lost, the transmitter is deployed and begins to transmit a continuous radio signal, which is used by search and rescue teams to quickly find the emergency and render aid. The purpose of all emergency locator beacons is to help rescuers find survivors within the so-called "golden day", the first 24 hours following a traumatic event, during which the majority of survivors can usually be saved.
Explorer 27 was a small NASA satellite, launched in 1965, designed to conduct scientific research in the ionosphere. It was powered by 4 solar panels. One goal of the mission was to study in detail the shape of the Earth by way of investigating variations in its gravitational field. It was the third and last of the Beacons in the Explorers program. The satellite was shut off in July 1973 so that its transmission band could be used by higher-priority spacecraft.
 | This article related to radio communications is a stub. You can help Wikipedia by expanding it. |