Misplaced Pages

#42957

89-699: In March 2015, the Army changed the name of the Ultra Light Combat Vehicle to the Ground Mobility Vehicle. A-GMV is intended to be carried internally in a CH-47 Chinook or externally by a UH-60 Black Hawk . In order to be survivable but transportable, the GMV would be lightly armored and use speed, maneuverability, and off-road mobility to avoid major threats. The A-GMV is configured to carry an airborne infantry combat squad of nine paratroopers, and their gear –

178-484: A central tire inflation system . Heavy suspension was also included as an upgrade, giving a ground clearance of 16.8 inch / 42.672 cm. There was an increased payload capacity to 2½ tons (unarmored M998 / M1025 GMVs) A V8 6.5L turbocharged diesel engine that ran at 190 horse power (142 kW) at 3,400 rpm was installed. Extra fuel tanks were available to improve on the GMV's range. Sometimes multiple M243 smoke grenade launchers are installed. An open bed

267-417: A commercial off-the-shelf or non-developmental item vehicle," for which a firm fixed-priced contract is to be awarded through an open competition. FY 2017 funding could be used for a contract award for "GMV test vehicles for destructive testing" and initial production could be considered as soon as the fourth quarter of FY 2017 and full-rate production in the third quarter FY 2019. The Army never formalized

356-664: 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

445-426: A platoon headquarters, three rifle squads, and a weapons squad. The vehicle is seen as a "21st century jeep " to move troops around during an initial attack faster than the enemy can counter them with heavy weapons. Both the GMV and LRV are to replace sling-loaded Humvees in this role (but not for other units). Interest in the effort is expected on the scale of the U.S. Special Operations Command program to replace

534-520: A $ 33.8 million contract for the production of 118 A-GMVs and associated kits. The vehicles will outfit three airborne brigades. The A-GMV shares some 90 percent parts commonality with the GMV 1.1. GD-OTS delivered the first A-GMV to the US Army, marking the First Unit Equipped (FUE), delivered within four months of contract award and consisted of vehicles, spares and training. Estimated completion of

623-561: A CH-47 to carry heavier up-armored Humvees. In January 2014, the Army issued a notice to industry for a commercial-off-the-shelf air-droppable "Ultra Light Combat Vehicle" (ULCV). The information collated was used to examine the benefit of an ULCV to support mobility for Infantry Brigade Combat Team (IBCT) soldiers. The information received was used by the MCOE to screen COTS solutions for a potential follow-on static display and proof of principal event. A Platform Performance Demonstration (ULCV-PPD)

712-535: 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

801-706: 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

890-472: A competitive bid process, but in the interim, opted to purchase a limited number of GMVs through SOCOM's Ground Mobility Vehicle 1.1 . In its 2018 budget request, the Army split the GMV into two phases. The second phase, called the Infantry Squad Vehicle program, was initiated to acquire 1700 additional vehicles. In May 2018, the Army awarded General Dynamics Ordnance and Tactical Systems (GD-OTS)

979-683: 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

SECTION 10

#1732848392043

1068-607: A digital automated flight control system. Ground Mobility Vehicle %E2%80%93 (US)SOCOM program The Ground Mobility Vehicle (GMV) is a U.S. Special Operations Command , (US)SOCOM program, initially modifying Humvees into several variants for use by the United States special operations forces (SOF). Its design is mostly based on lessons learned during Operation Desert Storm in Iraq , after an initial program, post 1985, for specialized HMMWVs for desert strike operations :

1157-503: 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

1246-578: 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,

1335-679: 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

1424-461: 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

1513-591: 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

1602-474: A payload capacity of over 5,000 pounds (2,300 kg). The vehicle has an open design, modifiable into flexible configurations, by remote and manned turrets, armor, or arctic kits. The AGMV was a limited purchase through USSOCOM's GMV 1.1 program. The Infantry Squad Vehicle will be purchased in greater numbers. A-GMV is meant to be light and fast and deliver soldiers from a drop zone far from enemy air defenses or indirect fire systems. Five vehicles would carry

1691-462: 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

1780-535: 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

1869-520: A top speed of 170 knots (200 mph; 310 km/h), upon its introduction to service in 1962, 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

SECTION 20

#1732848392043

1958-652: A week without support. Army officials consider the GMV a needed addition to a global response force like the 82nd Airborne Division . Currently, airdropped infantry would be flown to a target area or driven there by trucks. Either way, they then need to dismount and walk the distance to their destination, sometimes for many miles while carrying heavy gear. The GMV would allow light infantry to be driven right to their destination, allowing them to be airdropped further away from potential enemy fire and use mobility to find an off-road avenue of approach an adversary isn't expecting, and not be fatigued once they need to fight. The idea

2047-514: 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

2136-671: 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

2225-551: 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

2314-567: Is used to store all the fuel, ammunition, rations, repair tools, electronic gadgets and other supplies that the mission requires. Each GMV can carry from 1 operator to at least 10 of them in full combat gear and still has room for enough fuel with other supplies to operate in desert areas for 10 days. The crew can modify the GMV to meet their specific needs. The GMV program made changes in the Humvee's chassis and tires to make them more compatible for off-road work. The tires used were more rugged and have

2403-599: 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

2492-575: 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

2581-578: 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

2670-546: 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

2759-596: The Ground Mobility Vehicle , which also sought to replace a Humvee-based vehicle with a lighter and more air-mobile design. Airborne infantry brigades would use the vehicles to rush forces from their airborne insertion point to seize an objective, which would become a forward airfield for reinforcing and deploying heavier follow-on forces. After follow-on forces arrive and set up positions, the ULCV would not be as useful, but could potentially allow troops to operate for up to

M1297 Army Ground Mobility Vehicle - Misplaced Pages Continue

2848-658: 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

2937-566: The YCH-1B , on 21 September 1961, the preproduction rotorcraft performed its maiden flight . In 1962, 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

3026-667: The YHC-1A designation; following testing, some Army officials considered it to be too heavy for 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

3115-493: 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

3204-644: 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

3293-465: 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

3382-545: 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

3471-684: 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

3560-555: 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

3649-512: 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

M1297 Army Ground Mobility Vehicle - Misplaced Pages Continue

3738-431: 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

3827-446: 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,

3916-555: The Desert Mobility Vehicle (DMV), or "Dumvee". GMV crews like to call them "gun trucks". The GMV program is superseded by the GMV 1.1, based on the General Dynamics Flyer 72. It is understood that under a seven-year indefinite delivery / indefinite-quantity (ID/IQ) contract (August 2013–August 2020), SOCOM wishes to procure 1,297 GMV 1.1s — to replace its 1,072 first generation, Humvee-based GMV units. The GMV

4005-457: 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

4094-566: 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 ,

4183-490: 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

4272-535: 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,

4361-698: 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

4450-542: 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,

4539-683: 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

SECTION 50

#1732848392043

4628-582: 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

4717-506: 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

4806-455: 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

4895-504: The battlefield, including the ability to execute medium-distance insertion operations," using UH-60 Black Hawk utility helicopters, according to the document. A-GMV's concept is to provide flexibility for entry operations in permissive and non-permissive environments ‘to counter threat anti-access strategies by using multiple austere entry points via air-drop, air-land, and/or air-insertion to bring in combat configured units." The Army said it plans to develop GMV to fulfil requirements "using

4984-405: 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

5073-517: The contract is March 2019. CH-47 Chinook The Boeing CH-47 Chinook 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

5162-462: 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

5251-560: 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

5340-413: 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

5429-536: 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

SECTION 60

#1732848392043

5518-501: 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,

5607-422: 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

5696-587: The maximum curb weight of the vehicle at 4,500 lb with a range of 250 mi (400 km). Six vendors took part in the technology demonstration and compared their vehicles to the Humvee as part of a global response force mission. The following is a list of vehicles provided at the Platform Performance Demonstration: In March 2015, the Army changed the name of the ULCV to the Ground Mobility Vehicle (GMV). This created confusion, as

5785-411: 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

5874-449: 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

5963-411: The name is the same as the USSOCOM Humvee-based Ground Mobility Vehicle , and its replacement, the M1288 GMV 1.1 , a vehicle also based on the Flyer 72 . The Army acknowledged General Dynamics' potential advantages because of the SOCOM contract but stated it was considering all options and would not sole-source their award. In May 2015 the Army issued a ULCV (GMV) market questionnaire. A second RfI

6052-401: 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

6141-442: 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

6230-441: 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

6319-404: 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

6408-478: 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

6497-592: 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

6586-493: The top gunner's turret . Variants consist of the following: In June 2012, the United States Special Operations Command requested proposals for a replacement for the GMV, called GMV version 1.1 . By contrast to converted Humvees, the vehicle needed to be lighter, faster, more easily transportable by air, sea, and land, and contain next generation communications and computing equipment. The vehicle

6675-413: 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

6764-470: 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

6853-612: 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

6942-465: 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,

7031-512: Was developed based on US military special forces/special operation forces Humvees deployed to the Middle East . The program was initially meant to provide equipment related to mountainous deployment . The GMV has a cruising range of 275 miles (443 km) at over 70 mph (110 km/h) for operations behind enemy lines with only occasional resupply. GMVs feature an open rear, where an enclosed cabin would normally be. This flat bed area

7120-452: Was issued in September. As a "new start" program in its fiscal year (FY) 2017 budget request the Army requested US$ 4.9 million in FY 2017 for the program. According to the latest program-related documents, the service hopes to find a vehicle that "provides enhanced tactical mobility" for an IBCT infantry squad of nine personnel and their equipment. The vehicle must be capable of moving "quickly around

7209-450: 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

7298-745: 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

7387-544: Was originally designed by Vertol, which had begun work in 1957 on 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

7476-484: 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

7565-481: Was subsequently held at Fort Bragg in June 2014 to allow potential contractors to demonstrate the capability of their vehicles. The PPD had vehicles demonstrate a range of threshold requirements including being driven onto and out of a CH-47 with a full nine-man squad and their equipment on board, ability to operate on various forms of terrain, be rigged and de-rigged by two soldiers within two minutes for sling-load operations, and others. Threshold requirements identify

7654-544: Was the CH-47D, which first entered service in 1982; improvements from the CH-47C standard included upgraded engines, composite rotor blades, 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

7743-430: Was to acquire up to 300 vehicles by the end of 2016 at a unit cost of $ 149,000, which could decrease if a second increment was bought and stationed at installations for training; predicted dates were not certain as the entire effort remains subject to funding availability. Ability to be carried under a UH-60 Black Hawk in high/hot conditions is particularly important because battalion commanders cannot always get control of

7832-559: 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

7921-698: Was used for improved storage space and access with a winch for towing other vehicles (up to 4,200 pounds/1,905.088 kg). Armor plating and ballistic glass were also available to better protect the vehicle and its occupants. Early models were based on the M1025 Humvee chassis. Later models of GMVs included versions based on the M1113 chassis. Another model based on the M1165 HMMWV can be fitted with armor kits to create an 'up-armored' GMV with additional armor plating, ballistic glass and an optional gun shield around

#42957