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2010 Alaska C-17 Crash
On July 28, 2010, a C-17 Globemaster III transport plane of the U.S. Air Force (USAF) crashed at Elmendorf Air Force Base in Alaska, while practicing for a flight display at the upcoming Arctic Thunder Air Show. All four crew members on board were killed. It was the first and, to date, only fatal accident of a C-17 aircraft. The subsequent investigation blamed pilot error for the low-altitude stall that led to the aircraft impacting the ground. Accident On July 28, 2010, the crew was conducting a local training flight in preparation for the upcoming Arctic Thunder Air Show, to be held at the Elmendorf AFB from 31 July to 1 August. The C-17 is commonly featured in U.S. air shows, highlighting its short takeoff and landing capability. The plane had flown earlier that day with a different crew. At approximately 6:22 p.m. Alaska Daylight Time ( UTC-8), the C-17 took off from Runway 06 at Elmendorf AFB to practice the display routine. After the initial climb, followed by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stall (fluid Dynamics)
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', p. 486. Aviation Supplies & Academics, 1997. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is typically about 15°, but it may vary significantly depending on the fluid, foil, and Reynolds number. Stalls in fixed-wing flight are often experienced as a sudden reduction in lift as the pilot increases the wing's angle of attack and exceeds its critical angle of attack (which may be due to slowing down below stall speed in level flight). A stall does not mean that the engine(s) have stopped working, or that the aircraft has stopped moving—the effect is the same even in an unpowered glider aircraft. Vectored thrust in aircraft is used to maintain altitude or controlled flight with wings stalled by replacing lost wing lift with engine or propeller thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchorage, Alaska
Anchorage () is the largest city in the U.S. state of Alaska by population. With a population of 291,247 in 2020, it contains nearly 40% of the state's population. The Anchorage metropolitan area, which includes Anchorage and the neighboring Matanuska-Susitna Borough, had a population of 398,328 in 2020, accounting for more than half the state's population. At of land area, the city is the fourth-largest by area in the United States and larger than the smallest state, Rhode Island, which has . Anchorage is in Southcentral Alaska, at the terminus of the Cook Inlet, on a peninsula formed by the Knik Arm to the north and the Turnagain Arm to the south. In September 1975, the City of Anchorage merged with the Greater Anchorage Area Borough, creating the Municipality of Anchorage. The municipal city limits span , encompassing the urban core, a joint military base, several outlying communities, and almost all of Chugach State Park. Because of this, less than 10% of the Municipalit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wasilla
Wasilla ( Dena'ina: ''Benteh'') is a city in Matanuska-Susitna Borough, United States and the fourth-largest city in Alaska. It is located on the northern point of Cook Inlet in the Matanuska-Susitna Valley of the southcentral part of the state. The city's population was 9,054 at the 2020 census, up from 7,831 in 2010. Wasilla is the largest city in the borough and a part of the Anchorage metropolitan area, which had an estimated population of 398,328 in 2020. Established at the intersection of the Alaska Railroad and Old Carle Wagon Road, the city prospered at the expense of the nearby mining town of Knik. Historically entrepreneurial, the economic base shifted in the 1970s from small-scale agriculture and recreation to support for workers employed in Anchorage or on Alaska's North Slope oilfields and related infrastructure. The George Parks Highway turned the town into a commuter suburb of Anchorage. Wasilla gained international attention when Sarah Palin, who served ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Railroad
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loadmaster
A loadmaster is an aircrew member on civilian aircraft or military transport aircraft tasked with the safe loading, transport and unloading of aerial cargoes. Loadmasters serve in the militaries and civilian airlines of many nations. Duties The loadmaster performs the calculations and plans cargo and passenger placement to keep the aircraft within permissible center of gravity limits throughout the flight. Loadmasters ensure cargo is placed on the aircraft in such a way as to prevent overloading sensitive sections of the airframe and cargo floor. Considerations are also given to civilian and military regulations which may prohibit the placement of one type of cargo in proximity to another. Unusual cargo may require special equipment to be loaded safely aboard the aircraft, limiting where the other cargo may feasibly be placed. Tactically, loadmasters may also directly affect combat readiness as they are also responsible for determining the load order of aircraft so that mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senior Master Sergeant
Senior master sergeant is the military rank for a senior non-commissioned officer in the armed forces of some countries. Philippines Armed forces Senior master sergeant is the second-highest attainable rank for enlisted personnel of the Philippine Army, the Philippine Air Force and the Philippine Marine Corps (a component of the Philippine Navy). The rank stands above that of master sergeant and below that of chief master sergeant. File:PHIL ARMY SMSG WOODLAND.svg, File:PAF SMSG SL.svg, File:PMC SMSG Slv.svg, Philippine National Police As of February 8, 2019, a new ranking classification for the Philippine National Police was adopted, eliminating confusion of old ranks. The Police Senior master sergeant is third highest non-commissioned officer rank on the service. It stands above the rank of Police Master sergeant and below the Police Chief master sergeant. File:PNP SPO2.png, United States U.S. Space Forcesenior master sergeantinsignia U.S. Air Forcese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Captain (United States)
In the United States uniformed services, captain is a commissioned-officer rank. In keeping with the traditions of the militaries of most nations, the rank varies between the services, being a senior rank in the naval services and a junior rank in the ground and air forces. Many fire departments and police departments in the United States also use the rank of captain as an officer in a specific unit. Usage For the naval rank, a captain is a senior officer of U.S. uniformed services pay grades O-6 (the sixth officer rank), typically commanding seagoing vessels, major aviation commands and shore installations. This rank is used by the U.S. Navy, U.S. Coast Guard, U.S. Public Health Service Commissioned Corps, the National Oceanic and Atmospheric Administration Commissioned Corps, and the U.S. Maritime Service. Seaborne services of the United States and many other nations refer to the officer in charge of any seagoing vessel as "captain" regardless of actual rank. For instance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Major (United States)
In the United States Army, U.S. Marine Corps, U.S. Air Force and U.S. Space Force, major is a field-grade military officer rank above the rank of captain and below the rank of lieutenant colonel. It is equivalent to the naval rank of lieutenant commander in the other uniformed services. Although lieutenant commanders are considered junior officers by their respective services (Navy and Coast Guard), the rank of major is that of a senior officer in the United States Army, the United States Marine Corps, and the United States Air Force. The pay grade for the rank of major is O-4. The insignia for the rank consists of a golden oak leaf, with slight stylized differences between the Army/Air Force version and the Marine Corps version. Promotion to major is governed by the Department of Defense policies derived from the Defense Officer Personnel Management Act of 1980. Army A major in the U.S. Army typically serves as a battalion executive officer (XO) or as the battalion operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
249th Airlift Squadron
The 249th Airlift Squadron is an inactive unit of the Alaska Air National Guard, formerly located at Joint Base Elmendorf–Richardson, Alaska and assigned to the 176th Wing. The 249th was an associate unit of the 517th Airlift Squadron, which was equipped with the Boeing C-17 Globemaster III. Mission The 249th's mission was strategic airlift of troops and cargo to main operating bases or forward locations worldwide. It also conducted theater airlift, aeromedical evacuation and tactical airdrop missions. Tactics to accomplish the mission include air refueling, low-level contour navigation and use of night vision goggles. Its crews mix with crews from the active-duty Air Force 517th Airlift Squadron to fly eight Boeing C-17 Globemaster III jets around the world. In the event of mobilization the squadron would become an element of Pacific Air Forces. History In association with the 517th, the Alaska Air National Guard established a detachment of the 176th Operations Group in 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Air National Guard
The Alaska Air National Guard (AK ANG) is the aerial militia of the State of Alaska, United States of America. It is, along with the Alaska Army National Guard, an element of the Alaska National Guard. As state military units, the units in the Alaska Air National Guard are not typically in the normal United States Air Force chain of command unless federalized. They are under the jurisdiction of the governor of Alaska though the office of the Alaska Adjutant General unless they are federalized by order of the president of the United States. The Alaska Air National Guard is headquartered at Joint Base Elmendorf–Richardson and its commander is Brigadier General Scott A. Howard. Overview Under the "Total Force" concept, Alaska Air National Guard units are considered to be Air Reserve Components (ARC) of the United States Air Force (USAF). Alaska ANG units are trained and equipped by the Air Force and are operationally gained by a Major Command of the USAF if federalized. In addit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
517th Airlift Squadron
The 517th Airlift Squadron is an active unit of the United States Air Force, Pacific Air Forces 3d Wing at Joint Base Elmendorf–Richardson, Alaska. It operates Beechcraft C-12 Huron and Boeing C-17 Globemaster III aircraft providing airlift in the Pacific theater. Mission The 517th Airlift Squadron provides airlift operating Boeing C-17 Globemaster III and Beechcraft C-12F Huron aircraft. Supporting worldwide airlift, airdrop, airland requirements while providing airlift for theater deployed forces and resupply of remote Alaskan long-range radar sites in support of United States Pacific Command, North American Aerospace Defense Command, and United States Transportation Command. Provides aircrew qualification training for the U.S. Air Force. History World War II Activated in December 1940 as the 17th Transport Squadron flying Douglas C-47 Skytrain transport aircraft. It trained under I Troop Carrier Command for combat operations. In July 1942, redesignated 17th Troop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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