A borough in some U.S. states is a unit of local government or other administrative division below the level of the state. The term is currently used in six states:
87-645: The Denali Borough is a borough located in the U.S. state of Alaska . As of the 2020 census the population of the borough was 1,619, down from 1,826 in 2010. The borough seat and most populated community is Healy , and its only incorporated place is Anderson . The borough was incorporated in December 1990. The area was previously a part of the Unorganized Borough , with the Upper Railbelt School District serving as
174-669: A fast rope -rappelling system, and other upgrades. The MH-47D was used by U.S. Army 160th Special Operations Aviation Regiment . Twelve MH-47D helicopters were produced. Six were converted from CH-47As and six were converted from CH-47C models. The MH-47E has been used by U.S. Army Special Operations. Beginning with the E-model prototype manufactured in 1991, a total of 26 Special Operations Aircraft were produced. All aircraft were assigned to 2–160th SOAR(A) "Nightstalkers", home based at Fort Campbell, Kentucky . E models were converted from CH-47C airframes. The MH-47E has similar capabilities as
261-547: A CH-47 while taxiing. Another had a retention pin shake loose on a 20 mm cannon and was brought down when its own gun fired through the forward rotor blades. The third was grounded by enemy fire and destroyed by enemy mortar rounds after the crew escaped. During the 1970s, the United States and Iran had a strong relationship, in which the Iranian armed forces began to use many American military aircraft, most notably
348-723: A Chinook that was shot down near Kabul in Kunar Province in June 2005 with all aboard killed, including a 16-member U.S. Special Operations team. Chinook helicopters participated in the 2021 Kabul airlift at the close of military operations in Afghanistan. The Chinook's ability to carry large, underslung loads has been of significant value in relief operations in the aftermath of natural disasters . Numerous operators have chosen to deploy their Chinook fleets to support humanitarian efforts in stricken nations overseas. Following
435-463: A city-wide district attorney 's office. Instead, each borough elects a district attorney whose title is named after the respective county: Bronx County District Attorney , Kings County District Attorney , New York County District Attorney , Queens County District Attorney , and Richmond County District Attorney . Boroughs do not exist in any other part of the state of New York . In Pennsylvania 's state laws that govern classes of municipalities,
522-699: A contract for fifteen extensively modified and upgraded CH-47Fs for the Canadian Forces , later delivered in 2013–2014 with the Canadian designation CH-147F. On 15 December 2009, Britain announced its Future Helicopter Strategy, including the purchase of twenty-four new CH-47Fs to be delivered from 2012. Australia ordered seven CH-47Fs in March 2010 to replace its six CH-47Ds between 2014 and 2017. In September 2015, India approved purchase of fifteen CH-47F Chinooks. On 7 November 2016, Singapore announced that
609-503: A group of U.S. Navy SEALs. The 38 were members of NATO and allied forces, including 22 Naval Special Warfare operators, five U.S. Army Aviation soldiers, three U.S. Air Force special operations personnel, and seven Afghan National Army commandos. A civilian translator and a U.S. military working dog were also killed in the crash. The crash was the single deadliest during the entire Operation Enduring Freedom campaign. The previous biggest single-day loss for American forces in Afghanistan involved
696-591: A key operation of the war, Iranian Chinooks were landed behind Iraqi lines, deployed troops that silenced their artillery, and captured an Iraqi headquarters; the attack took the Iraqi forces by surprise. Despite the arms embargo in place upon Iran, it has managed to keep its Chinook fleet operational. Some of the Chinooks have been rebuilt by Panha . As of 2015, 20 to 45 Chinooks were operational in Iran. In 1976,
783-699: A maximum gross weight of 33,000 lb (15,000 kg), with a maximum payload about 10,000 lb (4,500 kg) Delivery of the CH-47A Chinook to the U.S. Army began in August 1962. A total of 354 were built. The ACH-47A was known as the Armed/Armored CH-47A (or A/ACH-47A) before being designated ACH-47A as a U.S. Army Attack Cargo Helicopter, and unofficially referred to as Guns A Go-Go . Four CH-47A helicopters were converted to gunships by Boeing Vertol in late 1965. Three were assigned to
870-464: A more substantially improved CH-47C. The CH-47B was powered by two Lycoming T55-L-7C 2,850 hp (2,130 kW) engines. It had a blunted rear rotor pylon, redesigned asymmetrical rotor blades, and strakes along the rear ramp and fuselage to improve flying characteristics. It could be equipped with two door-mounted M60D 7.62 mm NATO machine guns on the M24 armament subsystem and a ramp-mounted M60D using
957-695: A new tandem-rotor helicopter, designated as the Vertol Model 107 or V-107. Around the same time, the United States Department of the Army announced its intention to replace the piston-engine –powered Sikorsky CH-37 Mojave with a new, gas turbine –powered helicopter. During June 1958, the U.S. Army ordered a small number of V-107s from Vertol under the YHC-1A designation; following testing, some Army officials considered it to be too heavy for
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#17327794892121044-602: A number of lead plates were attached to the floor of each Chinook; even with such measures, pilots had to keep their distance from the reactors while also limiting flight times in the vicinity to a maximum of 45 minutes to avoid excessive radiation exposure. In April 2023, multiple Chinooks conducted the evacuation of the US Embassy in Khartoum, Sudan with Special Forces. (see also Sudanese civil war (2023–present) ) Chinooks have been deployed to Mali for MINUSMA . Since
1131-400: A redesigned cockpit to reduce workload, improved and redundant electrical systems and avionics, and the adoption of an advanced flight control system. It remains one of the few aircraft to be developed during the early 1960s – along with the fixed-wing Lockheed C-130 Hercules cargo aircraft – that has remained in both production and frontline service for over 60 years. The military version of
1218-467: A separate aviation medium helicopter company, the 147th, had arrived in Vietnam on 29 November 1965. This latter company was initially placed in direct support of the 1st Infantry Division . CH-47 crews quickly learned to mount an M60 machine gun in each of the forward doors. Sometimes they also installed an M2 machine gun to fire from the rear cargo door. The most spectacular mission in Vietnam for
1305-543: A single 40 mm M75 grenade launcher in the XM5/M5 armament subsystem (more commonly seen on the UH-1 series of helicopters). Rare newsreel footage shows one of the aircraft in action supporting the 8th Cavalry Regiment during an ambush at Bông Son, South Vietnam. The surviving aircraft, Easy Money , has been restored and is on display at Redstone Arsenal , Alabama. The CH-47B was an interim upgrade while Boeing worked on
1392-548: Is coextensive and consolidated with its town. The other eight boroughs, such as Woodmont , have jurisdiction over only a part of their town. Boroughs in Connecticut are counted as separate municipal governments, but governmental functions performed in other parts of the state by town governments are performed by the parent town of the borough. In Michigan , the term borough only applied to Mackinac Island from February 2, 1817, to March 25, 1847. The Borough government
1479-510: Is a tandem-rotor helicopter originally developed by American rotorcraft company Vertol and now manufactured by Boeing Defense, Space & Security . The Chinook is a heavy-lift helicopter that is among the heaviest lifting Western helicopters. Its name, Chinook, is from the Native American Chinook people of Oregon and Washington state. The Chinook was originally designed by Vertol, which had begun work in 1957 on
1566-459: Is divided into six boroughs, one corresponding to the former city of South Norfolk and one corresponding to each of the five magisterial districts of the former Norfolk County . In Virginia Beach , the seven boroughs were abolished effective July 1, 1998. Wisconsin in the 19th century occasionally used the term "borough" for the type of civil township normally known as a town . Boeing CH-47 Chinook The Boeing CH-47 Chinook
1653-569: Is planning to buy sixty airframes to boost heavy lift capability. Spain had seventeen CH-47 which it is planning to upgrade CH-47F standard. By 2023, thirteen CH-47D were upgraded to CH-47F, and additionally, four new build CH-47F were acquired. There have been many versions of the Chinook over the decades, there are variants that involve major upgrades such as engines and avionics, ones for certain tasks, such as Special Operation missions, and finally there are version for certain countries, such as
1740-687: Is the CH-47F, which features several major upgrades to reduce maintenance, digitized flight controls, and is powered by two 4,733-horsepower (3,529 kW) Honeywell engines. An example of a British upgraded version is the HC.4; the first HC.4 first flew on 9 December 2010. A commercial model of the Chinook, the Boeing-Vertol Model 234, is used worldwide for logging, construction, fighting forest fires, and supporting petroleum extraction operations. In December 2006, Columbia Helicopters Inc purchased
1827-565: Is typically escorted by attack helicopters such as the AH-64 Apache for protection. Its lift capacity has been found of particular value in the mountainous terrain of Afghanistan, where high altitudes and temperatures limit the use of helicopters such as the UH-60 Black Hawk ; reportedly, one Chinook can replace up to five UH-60s in the air assault transport role. The Chinook helicopters of several nations have participated in
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#17327794892121914-539: The 2000 census there were 1,893 people, 785 households, and 452 families residing in the borough. The population density was 0.148 people per square mile (0.057 people/km). There were 1,351 housing units at an average density of 0.106 per square mile (0.041/km). The racial makeup of the borough was 85.74% White , 1.43% Black or African American , 4.75% Native American , 1.53% Asian , 0.37% Pacific Islander , 0.95% from other races, and 5.23% from two or more races. 2.48%. were Hispanic or Latino of any race. Of
2001-618: The 2004 Asian tsunami , the Republic of Singapore Air Force assisted in the relief operations in neighboring Indonesia using its Chinooks; similarly, after the 2005 Kashmir earthquake , the Royal Air Force dispatched several Chinooks to Northern Pakistan to assist in recovery efforts. In August 1992, six CH-47Ds were deployed from Fort Bragg in North Carolina to provide relief in the wake of Hurricane Andrew in what
2088-587: The Argentine Army each deployed two CH-47C helicopters, which were widely used in general transport duties. Of the Army's aircraft, one was destroyed on the ground by 30 mm cannon fire from an RAF GR3 Harrier , while the other was captured by the British and reused after the war. Both Argentine Air Force helicopters returned to Argentina and remained in service until 2002. Three British Chinooks were destroyed on 25 May 1982 when Atlantic Conveyor
2175-584: The Canadian Forces ' surviving CH-147Cs and upgraded them to CH-47D. Six more new CH-47Ds were delivered in 1995 for a total of 13. The Dutch CH-47Ds are improved over U.S. Army CH-47Ds, including a long nose for Bendix weather radar, a " glass cockpit ", and improved T55-L-714 engines. As of 2011, the Netherlands planned upgrading 11 of them to the CH-47F standard at a later date. As of 2011, Singapore has 18 CH-47D/SDs, which includes twelve "Super D" Chinooks, in service. In 2008, Canada purchased 6 CH-47Ds from
2262-490: The Denali National Park and Preserve have brought growth and development. The borough has a total area of 12,777 square miles (33,090 km), of which 12,751 square miles (33,020 km) is land and 26 square miles (67 km) (0.2%) is water. The borough contains North America 's highest point : Denali (formerly Mount McKinley), from which it derives its name, at 6,190.5 m (20,310 ft). At
2349-563: The F-14 Tomcat , as part of a modernization program. After an agreement signed between Boeing and Agusta , the Imperial Iranian Air Force purchased 20 Agusta-built CH-47Cs in 1971. The Imperial Iranian Army Aviation purchased 70 CH-47Cs from Agusta between 1972 and 1976. In late 1978, Iran placed an order for an additional 50 helicopters with Elicotteri Meridionali, but that order was canceled immediately after
2436-676: The Libyan Air Force purchased 24 Italian-built CH-47C helicopters, 14 of which were transferred to the Libyan Army during the 1990s. The Libyan Air Force recruited Western pilots and technicians to operate the CH-47 fleet. The Libyan Chinooks flew transport and support missions into Chad to supply Libyan ground forces operating there in the 1980s. Chinooks were occasionally used to transport Libyan special forces in assault missions in northern Chad. In 2002, Libya sold 16 helicopters to
2523-505: The revolution ; 11 of them were delivered after multiple requests by Iran. In the 1978 Iranian Chinook shootdown , four Iranian CH-47Cs penetrated 15–20 km (9–12 mi) into Soviet airspace in the Turkmenistan Military District. They were intercepted by a MiG-23M which shot down one CH-47, killing eight crew members, and forced a second helicopter to land. Chinook helicopters were used in efforts by
2610-656: The type certificate of the Model 234 from Boeing. The Chinook has also been licensed to be built by companies outside the United States, such as Agusta (now AgustaWestland ) in Italy and Kawasaki in Japan. The Army finally settled on the larger Chinook as its standard medium-transport helicopter, and by February 1966, 161 aircraft had been delivered to the Army. The 1st Cavalry Division had brought its organic Chinook battalion (three Chinook companies) when it arrived in 1965 and
2697-472: The 53rd Aviation Detachment in South Vietnam for testing, with the remaining one retained in the U.S. for weapons testing. By 1966, the 53rd was redesignated the 1st Aviation Detachment (Provisional) and attached to the 228th Assault Support Helicopter Battalion of the 1st Cavalry Division (Airmobile). By 1968, only one gunship remained, and transport demands prevented more conversions. It was returned to
Denali Borough, Alaska - Misplaced Pages Continue
2784-402: The 785 households 31.00% had children under the age of 18 living with them, 48.40% were married couples living together, 4.50% had a female householder with no husband present, and 42.30% were non-families. 35.00% of households were one person and 1.40% were one person aged 65 or older. The average household size was 2.28 and the average family size was 3.03. The age distribution was 23.80% under
2871-559: The Afghanistan War, including aircraft from Britain, Italy, the Netherlands, Spain, Canada, and Australia. Despite the age of the Chinook, it is still in heavy demand, in part due its proven versatility and ability to operate in demanding environments such as Afghanistan. In May 2011, an Australian Army CH-47D crashed during a resupply mission in Zabul Province, resulting in one fatality and five survivors. The helicopter
2958-702: The Army procure the Vertol -built medium transport helicopter. However, funding for full-scale development was not then available, and the Army vacillated on its design requirements. Some officials in Army Aviation thought that the new helicopter should be operated as a light tactical transport aimed at taking over the missions of the old piston-engined Piasecki H-21 and Sikorsky H-34 helicopters, and be consequently capable of carrying about 15 troops (one squad ). Another faction in Army Aviation thought that
3045-759: The Bronx , and Staten Island . Each of these is coterminous with a county : Kings County, New York County, Queens County, Bronx County, and Richmond County, respectively. There are no county governments within New York City for legislative or executive purposes. The powers of the boroughs are inferior to the powers of the citywide government, but each borough elects a borough president , who in turn appoints some members of local community boards (see Government of New York City ). The boroughs of New York City are generally treated as separate counties for judicial purposes and for some legal filings. New York City does not have
3132-561: The CH-47F would replace its older Chinooks, which had been in service since 1994, enabling the Republic of Singapore Air Force to meet its requirements for various operations, including Search and Rescue (SAR), Aeromedical Evacuation (AME), and Humanitarian Assistance and Disaster Relief (HADR) operations. The German government announced in June 2022 that the CH-47F Block 2 was selected as the winner of its heavy helicopter program to replace its Sikorsky CH-53G Sea Stallion fleet. Germany
3219-571: The Chinook fleet was used for casualty evacuation, and due to the very heavy demand for the helicopters, they were usually overburdened with wounded. Perhaps the most cost effective use of the Chinook was the recovery of other downed aircraft. At the war's peak the US Army had 21 Chinook companies in Vietnam. Pilots discovered the CH-47A's transmission system could not handle the two gas turbines running at full power, and high humidity and heat reduced
3306-431: The Chinook presented a major problem of "customer education". Commanders and crew chiefs had to be constantly alert that eager soldiers did not overload the temptingly large cargo compartment. It would be some time before troops would be experts at using sling loads. The Chinook soon proved to be such an invaluable aircraft for artillery movement and heavy logistics that it was seldom used as an assault troop carrier. Some of
3393-446: The Chinook was the placing of artillery batteries in perilous mountain positions inaccessible by any other means, and then keeping them resupplied with large quantities of ammunition. The 1st Cavalry Division found that its CH-47s were limited to a 7,000-pound (3,200 kg) payload when operating in the mountains, but could carry an additional 1,000 pounds (450 kg) when operating near the coast. As with any new piece of equipment,
3480-515: The HC-1B was redesignated CH-47A under the 1962 United States Tri-Service aircraft designation system . The Chinook possesses several means of loading various cargoes, including multiple doors across the fuselage, a wide loading ramp located at the rear of the fuselage and a total of three external ventral cargo hooks to carry underslung loads. Capable of a top speed of 170 knots (200 mph; 310 km/h), upon its introduction to service in 1962,
3567-461: The Huey and the Army's tacticians' insistence that initial air assaults be built around the squad. The Army pushed for both the Huey and the Chinook, and this focus was responsible for the acceleration of its air mobility effort. Improved and more powerful versions of the CH-47 have been developed since the helicopter entered service. Often the same airframe was upgraded to later standards, or sometimes
Denali Borough, Alaska - Misplaced Pages Continue
3654-573: The Iranian against Kurdish rebels in 1979. During the Iran–Iraq War , Iran made heavy use of its US-bought equipment, and lost at least eight CH-47s during the 1980–1988 period, most notably during a clash on 15 July 1983, when an Iraqi Mirage F1 destroyed three Iranian Chinooks transporting troops to the front line, and on 25–26 February 1984, when Iraqi MiG-21 fighters shot down two examples. On 22 March 1982, in Operation Fath ol-Mobin ,
3741-495: The J model built by and for Japan. The pre-1962 designation for Model 114 development aircraft that would be redesignated CH-47 Chinook. The all-weather, medium-lift CH-47A Chinook was powered initially by Lycoming T55 -L-5 engines rated at 2,200 horsepower (1,640 kW), which were replaced by the T55-L-7 rated at 2,650 hp (1,980 kW) engines or T55-L-7C engines rated at 2,850 hp (2,130 kW). The CH-47A had
3828-538: The M41 armament subsystem. Some CH-47 "bombers" were equipped to drop tear gas or napalm from the rear cargo ramp onto Viet Cong bunkers. The CH-47B could be equipped with a hoist and cargo hook. The Chinook proved especially valuable in "Pipe Smoke" aircraft recovery missions. The "Hook" recovered about 12,000 aircraft valued at over $ 3.6 billion during the war; 108 were built. The CH-47C featured more powerful engines and transmissions. Three sub-versions were built,
3915-714: The MH-47D, but with increased fuel capacity similar to the CH-47SD and terrain following/terrain avoidance radar. In 1995, the Royal Air Force ordered eight Chinook HC3s , effectively a lower cost MH-47E for special operations. They were delivered in 2001, but never became operational due to technical issues with their avionics fit, unique to the HC3. In 2008, work started to revert the HC3s to HC2 standard, to enable them to enter service. As of 2017 they were upgraded to HC5 standard with
4002-560: The U.S. for the Canadian Helicopter Force Afghanistan for $ 252 million. With 1 CH-47D lost to an accident, the remaining five were sold in 2011 after the end of Canada's Afghanistan mission and replaced with seven CH-147Fs. The U.S. Army is surplusing many of its CH-47Ds for use in FAA restricted category. The MH-47D was developed for special forces operations and has inflight refueling capability,
4089-711: The United Arab Emirates, as due to the Western embargo and lack of funds, maintaining them was difficult. The sale to UAE was a $ 939 million package that included equipment, parts, and training. The number of CH-47s still in existence or operational during the ongoing Libyan civil wars that started in 2011 is not known. The Chinook was used both by Argentina and the United Kingdom during the Falklands War in 1982. The Argentine Air Force and
4176-606: The United States Department of the Army announced its intention to replace the Sikorsky CH-37 Mojave , which was powered by piston engines , with a new, gas turbine-powered helicopter. Turbine engines were also a key design feature of the smaller UH-1 "Huey" utility helicopter. Following a design competition, in September 1958, a joint Army–Air Force source selection board recommended that
4263-517: The United States, and the program stopped. The ACH-47A carried five 7.62 × 51 mm M60D machine guns or .50-caliber (12.7 mm) M2HB heavy machine guns , provided by the XM32 and XM33 armament subsystems, two 20 mm M24A1 cannons , two 19-tube 2.75-inch (70 mm) Folding Fin Aerial Rocket launchers (XM159B/XM159) or sometimes two M18/M18A1 7.62 × 51 mm gun pods , and
4350-523: The Unorganized Borough into ten census areas for statistical purposes. In addition to cities, Connecticut also has another type of dependent municipality known as a borough. Boroughs are usually the populated center of a town that decided to incorporate in order to have more responsive local government. When a borough is formed, it is still part of and dependent on its town. There are nine boroughs in Connecticut. One borough, Naugatuck ,
4437-535: The Wild , based on a book of the same name, featured a bus where Christopher McCandless died became a destination for film fans. The 1940s bus was taken to a remote trail about 60 years ago (from 2020) by a road crew, according to Denali Borough Mayor, Clay Walker. Visitors to the site had to cross the Teklanika River . In 2019 a newlywed Belarusian woman drowned trying to cross the swollen river on her way to
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#17327794892124524-461: The age of 18, 6.70% from 18 to 24, 36.80% from 25 to 44, 29.70% from 45 to 64, and 3.10% 65 or older. The median age was 38 years. For every 100 females, there were 139.00 males. For every 100 females age 18 and over, there were 147.10 males. Denali Borough is the 63rd highest-income county in the United States, and highest-income county in Alaska, by personal per capita income as of 2009. Apart from
4611-459: The airframes were built to the newer upgrade. The U.S. Army's first major design leap was the now-common CH-47D, which entered service in 1982. Improvements from the CH-47C included upgraded engines, composite rotor blades, a redesigned cockpit to reduce pilot workload, improved and redundant electrical systems, an advanced flight control system, and improved avionics. The latest mainstream generation
4698-697: The assault missions and too light for transport purposes. While the YHC-1A would be improved and adopted by the U.S. Marine Corps as the CH-46 Sea Knight , the Army sought a heavier transport helicopter, and ordered an enlarged derivative of the V-107 with the Vertol designation Model 114. Initially designated as the YCH-1B , on 21 September 1961, the preproduction rotorcraft performed its maiden flight . In 1962,
4785-479: The bus would be kept in a "secure location" until a decision is made about its future. Clay Walker said, "It (the bus) is part of our history and it does feel a little bittersweet to see a piece of our history go down the road." [REDACTED] Media related to Denali Borough, Alaska at Wikimedia Commons 63°47′20″N 150°11′30″W / 63.78889°N 150.19167°W / 63.78889; -150.19167 Borough (United States) In Alaska ,
4872-405: The cargo lifting and dropping. While hovering over a specific location, a twin-rotor helicopter has increased stability over a single rotor when weight is added or removed, for example, when troops drop from or begin climbing up ropes to the aircraft, or when other cargo is dropped. If one engine fails, the other can drive both rotors. The "sizing" of the Chinook was directly related to the growth of
4959-470: The designation of HC-1B. On 21 September 1961, the preproduction Boeing Vertol YCH-1B made its initial hovering flight. During 1962, the HC-1B was redesignated the CH-47A under the 1962 United States Tri-Service aircraft designation system ; it was also named "Chinook" after the Chinook people of the Pacific Northwest. The CH-47 is powered by two turboshaft engines, mounted on each side of
5046-577: The development of its Reusable Launch Vehicle Technology Demonstration Program , with Chinook helicopters air-dropping two test vehicles during the RLV-LEX-01 and RLV-LEX-02 conducted on April 2, 2023, and March 22, 2024, respectively. In February 2007, the Royal Netherlands Air Force became the first international customer of the CH-47F model, expanding their Chinook fleet to seventeen. On 10 August 2009, Canada signed
5133-573: The equivalent level of the other four types of municipal government available in New Jersey: Township , Town , City , and Village . Many boroughs were formed out of larger townships, but even in such cases there is no continuing link between the borough and the township. Most boroughs were formed during the Boroughitis phenomenon of the mid-1890s. New York City is divided into five boroughs: Brooklyn , Manhattan , Queens ,
5220-413: The first with Lycoming T55-L-7C engines delivering 2,850 shp (2,130 kW). The "Super C" had Lycoming T55-L-11 engines delivering 3,750 shp (2,800 kW), an upgraded maximum gross weight of 46,000 lb (21,000 kg), and pitch stability augmentation. The T55-L-11 engines were less reliable, as they had been hurriedly introduced to increase payload; thus, they were temporarily replaced by
5307-536: The gunners from firing into the rotor blades. Dust filters were also added to improve engine reliability. Of the nearly 750 Chinook helicopters in the U.S. and South Vietnam fleets, about 200 were lost in combat or wartime operational accidents. The U.S. Army CH-47s supported the 1st Australian Task Force as required. Four CH-47s were converted into ACH-47As by adding armor and improved engines. Its armament included two fixed forward firing M24A1 20 mm cannons , one turret with 40 mm automatic grenade launcher on
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#17327794892125394-508: The helicopter has been exported to nations across the world; the U.S. Army and the Royal Air Force (see Boeing Chinook (UK variants) ) have been its two largest users. The civilian version of the Chinook is the Boeing Vertol 234. It has been used by civil operators not only for passenger and cargo transport, but also for aerial firefighting and to support logging , construction , and oil extraction industries. During late 1956,
5481-471: The helicopter was considerably faster than contemporary 1960s utility helicopters and attack helicopters , and is still one of the fastest helicopters in the US inventory. Improved and more powerful versions of the Chinook have also been developed since its introduction; one of the most substantial variants to be produced was the CH-47D, which first entered service in 1982; improvements from the CH-47C standard included upgraded engines, composite rotor blades,
5568-422: The helicopter's rear pylon and connected to the rotors by drive shafts. Initial models were fitted with Lycoming T55 engines rated at 2,200 hp (1,600 kW) each. The counter-rotating rotors eliminate the need for an antitorque vertical rotor, allowing all power to be used for lift and thrust. The ability to adjust lift in either rotor makes it less sensitive to changes in the center of gravity, important for
5655-411: The maximum lift by more than 20% in the low lands and 30% in mountain areas. More powerful, improved transmission and strengthened fuselages arrived in 1968 with the CH-47B, followed a few months later by the CH-47C. The CH-47s in Vietnam were generally armed with a single 0.308 in ( 7.62 mm ) M60 machine gun on a pintle mount on either side of the aircraft for self-defense, with stops fitted to keep
5742-449: The more reliable Lycoming T55-L-7C. The Super C was distinguishable from the standard "C" by the uprated maximum gross weight. The type was not approved by the FAA for civil aviation due to the nonredundant hydraulic flight boost system drive. The hydraulic system was redesigned for the succeeding CH-47D, allowing it to achieve certification as the Boeing Model 234. A total of 233 CH-47Cs were built. Canada bought eight CH-47Cs; deliveries of
5829-401: The new helicopter should be much larger, enabling it to airlift large artillery pieces and possess enough internal space to carry the new MGM-31 "Pershing" missile system . During 1957, Vertol commenced work upon a new tandem-rotor helicopter, designated as the Vertol Model 107 or V-107. During June 1958, the U.S. Army awarded a contract to Vertol for the acquisition of a small number of
5916-442: The nose, five .50 in machine guns and two weapon pods on the sides that could carry either XM159B/XM159C 70 mm rocket launchers or 7.62 mm miniguns. They arrived in Vietnam in 1966, and they engaged in six months of operational testing at An Khê Army Airfield . They performed well in combat, but its high maintenance costs and demand for use in troop and cargo transport was stronger. Three ACH-47s were lost. One collided with
6003-441: The principal mover of the 155 mm M198 howitzer , plus 30 rounds of ammunition, and an 11-man crew. The CH-47D has advanced avionics, including Global Positioning System . Nearly all US Army CH-47Ds were converted from previous A, B, and C models, a total of 472 being converted. The last U.S. Army CH-47D built was delivered to the U.S. Army Reserve , located at Fort Hood, Texas , in 2002. The Netherlands acquired all seven of
6090-419: The region's rural education attendance area (which was replaced by a school district under the borough's umbrella upon incorporation). The earliest inhabitants were nomadic native Alaskans. A mining camp was established near Healy prior to 1902, and construction of the Alaska Railroad brought additional settlers to the area in the early 1920s. Clear Space Force Station , the Usibelli Coal Mine and tourism at
6177-404: The rotorcraft, giving it the YHC-1A designation. As ordered, the YHC-1A possessed the capacity to carry a maximum of 20 troops. Three underwent testing by the Army for deriving engineering and operational data. However, the YHC-1A was considered by many figures within the Army users to be too heavy for the assault role, while too light for the more general transport role. Accordingly, a decision
6264-482: The same airframe as earlier models, with more powerful engines. Early CH-47Ds were powered by two T55-L-712 engines. The most common engine is the later T55-GA-714A. With its triple-hook cargo system, the CH-47D can carry heavy payloads internally and up to 26,000 lb (12,000 kg) (such as 40-foot or 12-meter containers) externally. It was introduced into service in 1979. In air assault operations, it often serves as
6351-577: The site. Another drowning took place in 2010. A stranded Brazilian had to be rescued in April 2020 and five Italians were rescued in February 2020, with one suffering from severe frostbite. In total 15 bus-related search and rescue operations for visitors to the bus were carried out between 2009 and 2017. In June 2020 the bus was removed because of public safety concerns. It was air-lifted by a US army Chinook helicopter . Alaskan authorities are quoted as saying
6438-608: The state government, the only incorporated town in Pennsylvania is Bloomsburg, Pennsylvania . In August 2005, there were 961 boroughs in the state. In Virginia , under Code of Virginia § 15.2-3534, when multiple local governments consolidate to form a consolidated city, the consolidated city may be divided into geographical subdivisions called boroughs, which may be the same as the existing (i) cities, (ii) counties, or (iii) portions of such counties. Those boroughs are not separate local governments. For example, Chesapeake
6525-616: The subsequent Operation Desert Storm in 1990–91. The CH-47D has seen wide use in Operation Enduring Freedom in Afghanistan and Operation Iraqi Freedom in Iraq. The Chinook is being used in air assault missions, inserting troops into fire bases , and later bringing food, water, and ammunition. It is also the casualty evacuation aircraft of choice in the British Armed Forces . In combat theaters , it
6612-436: The term "borough" is used the way other states sometimes use the words "town" or "village." A borough is a self-governing entity that is generally smaller than a city. If an area is not governed by either a borough or city, then the area is governed as a township. Villages or hamlets are unincorporated and have no municipal government, other than the township in which they are found. By tradition, as recognized by publications of
6699-517: The two Democratic victories in 1960 and 1964, Denali Borough was carried by Republicans in presidential elections except in 1992, when it was carried by independent candidate Ross Perot . In the Twilight Saga by Stephenie Meyer , the Denali vampire coven (consisting of Tanya, Kate, Irina, Eleazar and Carmen and later Garrett) lives in Denali because of the lack of sunlight. The film Into
6786-413: The two dozen distribution centers and trucks, proving essential as trucks could not reach the worst hit areas due to downed trees and power lines. They flew everyday for approximately three weeks, moving supplies and personnel around the disaster zone as well as carrying media and government officials, including then Congressman Bill Nelson . Ultimately, the Chinooks supplied 64 distribution sites throughout
6873-476: The type began in 1974. Receiving the Canadian designation "CH-147", these were fitted with a power hoist above the crew door; other changes included a flight engineer station in the rear cabin: operators referred to the configuration as the "Super C". The CH-47C was used widely during the Vietnam War, eventually replacing the older Piasecki H-21 Shawnee in the combat assault support role. The CH-47D shares
6960-624: The type's inception, the Chinook has carried out various secondary missions, including medical evacuation, disaster relief, search and rescue, aircraft recovery, fire fighting, and heavy construction assistance. In February 2020, the Indian Air Force started using Chinooks at theatres such as Ladakh and Siachen Glacier to assist Indian forces deployed at the Indian borders with China and Pakistan . The Indian Space Research Organisation has also enlisted Indian Air Force Chinooks during
7047-510: The word "borough" is used instead of "county". Like counties, boroughs are administrative divisions of the state. Each borough in Alaska has a borough seat , which is the administrative center for the borough. The Municipality of Anchorage is a consolidated city-borough , as are Sitka , Juneau , Haines , Yakutat , and Skagway . Nearly half of the state's area is part of the vast Unorganized Borough , which has no borough-level government at all. The United States Census Bureau has divided
7134-473: The zone and transported 1.2 million pounds of supplies before the urgent relief phase ended. Three of Japan's CH-47s were used to cool Reactors 3 and 4 of the Fukushima Nuclear power plant following the 9.0 earthquake in 2011 ; they were used to collect sea water from the nearby ocean and drop it over the affected areas. In order to protect the crew from the heightened radiation levels present,
7221-474: Was established by William Henry Puthuff after the island was proclaimed to be a U.S. territory in the War of 1812 . The borough government was replaced by a village government in 1847. In Minnesota , "borough" was applied to one municipality, Belle Plaine , from 1868 to 1974. In New Jersey , boroughs are independent municipalities and are one of five types of municipal government, each operating separately at
7308-455: Was made to procure a heavier transport helicopter, and at the same time, upgrade the UH-1 "Huey" to serve as the needed tactical troop transport. The YHC-1A would be improved and adopted by the Marines as the CH-46 Sea Knight in 1962. As a result, the Army issued a new order to Vertol for an enlarged derivative of the V-107, known by internal company designation as the Model 114, which it gave
7395-750: Was one of the first major helicopter disaster relief operations on US soil. Then President George H. W. Bush ordered the military to assist. The Chinooks arrived at Miami-Opa Locka Executive Airport , just outside of the disaster zone, one day after the President's order; early on, they performed a wide loop over Homestead and Florida City to publicly display their presence, helping to curtail lawlessness and looting. The Chinooks initially flew twelve sorties per day out of Opa Locka, which expanded over time, often supporting distribution operations at Homestead AFB and Opa Locka, as well as delivering relief payloads via internal storage, not using sling loads, supplementing
7482-489: Was struck by an Exocet sea-skimming missile fired by an Argentine Super Étendard . The sole surviving British Chinook, Bravo November , did outstanding service in the Falklands, lifting 81 troops on one occasion. Since April 2022, it has been on display at Royal Air Force Museum Cosford . About 163 CH-47Ds of various operators were deployed to Saudi Arabia , Kuwait , and Iraq during Operation Desert Shield and
7569-572: Was unable to be recovered and was destroyed in place. To compensate for the loss, the ADF added two ex-U.S. Army CH-47Ds to the fleet which are expected to be in service until the introduction of the CH-47Fs in 2016. On 6 August 2011, a Chinook crashed near Kabul, killing all of the 38 aboard. The Chinook was reportedly shot down with a rocket-propelled grenade by the Taliban while attempting to assist
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