Marine One

Last updated

U.S. Marine Corps VH-92A flying during HMX-1's 75th Anniversary Reunion at Marine Corps Base Quantico, Virginia in June 2022. VH-92 Quantico.jpg
U.S. Marine Corps VH-92A flying during HMX-1's 75th Anniversary Reunion at Marine Corps Base Quantico, Virginia in June 2022.

Marine One is the call sign of any United States Marine Corps aircraft carrying the president of the United States. [1] As of 2024, it denotes a presidential transport helicopter operated by Marine Helicopter Squadron One (HMX-1) "Nighthawks", consisting of either the large new VH-92A Patriot and smaller VH-60N "White Hawk". Both helicopters are called "White Tops" because of their livery. Any Marine Corps aircraft carrying the vice president of the United States without the president has the call sign Marine Two.

Contents

History

A VH-34D presidential helicopter on the South Lawn of the White House in 1961 VH-34D at the White House 1961.jpg
A VH-34D presidential helicopter on the South Lawn of the White House in 1961
A former VH-3 Marine One at the Ronald Reagan Presidential Library Marine One at the Reagan Library.jpg
A former VH-3 Marine One at the Ronald Reagan Presidential Library

The first use of a helicopter to transport the president was in 1957, when President Dwight D. Eisenhower traveled on a Bell UH-13J Sioux. [2] The president wanted a quick way to reach his summer home, in Pennsylvania. Using Air Force One would have been impractical over such a short distance, and there was no airfield near his home with a paved runway to support fixed-wing aircraft, so Eisenhower instructed his staff to investigate other modes of transport and a Sikorsky UH-34 Seahorse helicopter was commissioned. [3] The early aircraft lacked the amenities of its modern successors, such as air conditioning and an aircraft lavatory for use in flight.[ citation needed ]

In 1958, the H-13 was replaced by the Sikorsky H-34, which was succeeded in 1961 by the VH-3A.[ citation needed ]

Richard Nixon boarding Marine One on July 16, 1972. President Nixon, H.R. Haldeman, and military aide boarding Marine One - NARA - 194438.tif
Richard Nixon boarding Marine One on July 16, 1972.

Not long after helicopters for presidential transport were introduced, presidential aides asked the Marine Corps to investigate using the White House South Lawn for landing. [3] There was ample room, and the protocol was established. [3] Until 1976, the Marine Corps shared the responsibility of helicopter transportation for the president with the United States Army. Army helicopters used the call sign Army One while the president was on board.[ citation needed ]

President Ronald Reagan and First Lady Nancy Reagan board Marine One, 1987 President Ronald Reagan and Nancy Reagan waving from the helicopter on White House lawn.jpg
President Ronald Reagan and First Lady Nancy Reagan board Marine One, 1987

The VH-3D entered service in 1978. The VH-60N entered service in 1987 and has served alongside the VH-3D. [4] Improvements were made to both models of helicopter after their introduction, to take advantage of technological developments and to meet new mission requirements. By about 2001, it was clear that so much extra weight had been added to the helicopters that mission capability was reduced and few new improvements could be made. [5]

By 2009, there were 11 VH-3Ds and eight VH-60Ns in service for the president and other prominent individuals. [4] On 16 July 2009, Marine One flew with an all-female crew for the first time. This was also the final flight of Major Jennifer Grieves, who was the first woman pilot to fly the president. [6]

Inside a VH-3D Marine One transporting President Barack Obama (seated with back to camera), seated with National Security Advisor James L. Jones, Chairman of the Joint Chiefs of Staff Adm. Michael Mullen, Defense Secretary Robert Gates, and Secretary of State Hillary Clinton (left to right). Obama, Clinton, Gates, Jones and Mullen in Marine One.jpg
Inside a VH-3D Marine One transporting President Barack Obama (seated with back to camera), seated with National Security Advisor James L. Jones, Chairman of the Joint Chiefs of Staff Adm. Michael Mullen, Defense Secretary Robert Gates, and Secretary of State Hillary Clinton (left to right).

As of 2009, Marine One had never had an accident or been attacked. [7] However, in 2006, President George W. Bush boarded Marine One with his departing press secretary, but the helicopter "would not work", so the president left the White House in a car. [8]

Replacement

The September 11 attacks led to agreement that the Marine One helicopter fleet needed significant upgrades to its communication, transportation, and security systems, but weight limitations prevented the changes. [5]

VXX program

In April 2002, the Department of Defense began the VXX program, which assigned the Navy to design new presidential helicopters by 2011. [9] In November 2002, the White House asked the Secretary of Defense to accelerate development of the new aircraft; the Defense Department said a new helicopter would be ready by the end of 2008, [5] and asked companies bidding on the project to begin development and production simultaneously. [9]

Initial contracting effort

Many specifications for the new aircraft were secret. Industry publications and testimony at congressional briefings revealed it was to be 64 feet (20 m) long, carry 14 passengers, able to carry several thousand pounds of baggage and gear, and have a range greater than those of the VH-3D and the VH-60N. The helicopter's defenses were to include radar jamming and deception, to ward off anti-aircraft missiles; protection of key electronics against nuclear electromagnetic pulse; and an encrypted telecommunications system and videoconferencing. [8]

The only competitors for the contract were Lockheed Martin and Sikorsky Aircraft. Lockheed joined with AgustaWestland, a British and Italian aircraft company, to offer a version of the AgustaWestland AW101. Sikorsky proposed using its S-92. [10] The Navy awarded the contract to Lockheed Martin in January 2005, [11] to develop and build 28 helicopters. [10] The helicopter was designated VH-71 Kestrel. [5] Five of the initial, less sophisticated version of the VH-71 were due for delivery in 2010, with 23 of the upgraded version due in 2015. The goal was to retire all VH-3Ds and VH-60Ns, and the five initial VH-71s in 2015, leaving the Marine One fleet with 23 helicopters. [8]

Cost overruns and cancellation

By March 2008, the previously estimated $6bn cost of the 28 helicopters had increased to $11bn. Government officials were surprised to discover that each VH-71 would cost $400 million, more than the cost of one Boeing VC-25 "Air Force One" airplane. Lockheed Martin blamed the Navy for the cost overruns, saying that more than 1,900 extra requirements were added to the project after the contract was signed. The Navy said no extra requirements were added. The company also cited the need to redesign the VH-71 to Navy standards, and an incomplete understanding by the Navy and Lockheed Martin of how much retrofitting the civilian aircraft would need. [8]

In June 2009, the VH-71 program was canceled because of cost overruns, [11] which had grown to more than $13bn. [9] A Government Accountability Office report issued in March 2011 named three sources of cost overruns. First, asking for development at the same time as production led to extensive retrofitting of models that had just been built. Second, a complete review of the system's requirements was not made until 4 months after production started, and only then was it discovered that the VH-71's design could not meet the program's needs. Third, the Defense Department and the White House asked for excessive combat and communications capabilities. [9]

Marine Corps contract revival
A developmental VH-92A helicopter conducts landing and take-off testing at the White House South Lawn in September 2018. Sikorsky VH-92 lands in front of the White House during tests on 22 September 2018 (180922-M-ZY870-531).jpg
A developmental VH-92A helicopter conducts landing and take-off testing at the White House South Lawn in September 2018.

Shortly after the program's cancellation, the Marine Corps restarted the program. [11] This time, instead of running development and production concurrently, the Corps created an Initial Capabilities Document (ICD), which more clearly outlined the aircraft's requirements. The Department approved the ICD in August 2009, naming it the VXX Helicopter Replacement Program. [11] In February 2010, the Navy asked private industry for input in an Analysis of Alternatives (AOA) to meet the project's needs. Among the options the Navy suggested was purchasing a single aircraft but developing two versions. Another option was to buy two different aircraft—a "civilian" version, with a bathroom, executive suite, and galley, and a "military" version, with complete command and control capabilities. The AOA drew interest from more than two companies. These included Boeing, which told the press that either its CH-47 Chinook or its Bell Boeing V-22 Osprey could meet the requirements. Because the AOA contemplated a much longer process of design and production, the Navy said it intended to spend $500 million to keep the VH-3Ds and VH-60s flying. [12] Boeing said it could adapt the VH-71, if the Navy and Marine Corps wished. [13]

In July 2013, the Department of Defense waived the requirement that companies build prototypes. The Department's analysis showed the cost of making prototypes was unlikely to generate benefits. The Department said it was proceeding with VXX development using an in-production aircraft with existing, proven systems. [14] A draft request for proposals was released in November 2012. [15]

Final contract award

By August 2013, all interested companies, including Northrop GrummanAgustaWestland and Bell–Boeing, had withdrawn from the VXX bidding, except Sikorsky Aircraft. Sikorsky had partnered with Lockheed Martin, and said it intended to use the S-92 as the base aircraft. [15] A new deadline in 2020 was established for the 23-helicopter fleet to be in operation. [15] In May 2014, the Navy awarded Sikorsky Aircraft a $1.2 billion contract to build 6 presidential helicopters, designated Sikorsky VH-92. A fleet of 21 helicopters was expected to be in service by 2023. [16] A VH-92 made its inaugural flight as Marine One on the afternoon of 19 August 2024, when President Joe Biden rode from Chicago's O'Hare International Airport to Soldier Field en route to the 2024 Democratic National Convention. [17]

Current operations

VH-60N over Washington, D.C. VH-60 Marine One (modified).jpg
VH-60N over Washington, D.C.

Marine One is the preferred alternative to motorcades, which can be expensive and logistically difficult. The controlled environment of a helicopter is also considered to add a safety factor. The HMX-1 fleet is also used to transport senior Cabinet staff and foreign dignitaries. HMX-1 operates 35 helicopters of four different types as of 2009. [18]

More than 800 Marines supervise the operation of the Marine One fleet, which is based in MCAF Quantico, Virginia, with an additional operating location at Naval Support Facility Anacostia in the District of Columbia, but is more often seen in action on the South Lawn of the White House or at Joint Base Andrews Naval Air Facility in Maryland. At Andrews, the helicopter is sometimes used to connect to Air Force One for longer journeys. Marine One is met on the ground by at least one Marine in full dress uniform (most often two, with one acting as an armed guard). According to a story told by Bruce Babbitt, President Clinton, in his final days of office, while flying over and landing in a remote area near the Grand Canyon, found a Marine waiting on the rock ready to salute him. [19] Marine aviators flying Marine One do not wear regular flight suits during flights, but rather the Marine Blue Dress Charlie uniform.[ citation needed ]

At a presidential inauguration, the Marines offer the outgoing president a final flight from the Capitol to Joint Base Andrews.

Security measures

As a security measure, Marine One often flies in a group of as many as five identical helicopters. One helicopter carries the president, while the others serve as decoys. Upon take-off these helicopters shift in formation to obscure the location of the president. This has been referred to as a "presidential shell game". [20] Marine One is also equipped with standard military anti-missile countermeasures such as flares to counter heat-seeking missiles and chaff to counter radar-guided missiles, as well as AN/ALQ-144A infrared countermeasures. [21] [22] [23] To add to the security of Marine One, every member of HMX-1 is required to pass a Yankee White background check before touching any of the helicopters used for presidential travel. [24]

Long-distance transport

Marine One is transported via C-17 Globemaster or C-5 Galaxy military transport planes (as is the president's limousine) wherever the president travels within the U.S., as well as overseas. [18] Even if, during a foreign trip, the president does not use Marine One, at least one helicopter is on standby in a hangar of a local airport or air base to depart if need be.

See also

Notes

  1. "HMX-1 Executive Flight Detachment". United States Marine Corps. Archived from the original on 23 March 2010. Retrieved 22 June 2010.
  2. Video: British H-Bomb Fired As Debate On Atom Test Ban Rages, 1957/06/03 (1957). Universal Newsreel. 1957. Retrieved 21 February 2012.
  3. 1 2 3 Brent, P.T. (February 2009). ""Marine One" - Welcome aboard". Leatherneck Magazine. Archived from the original on 29 March 2009. Retrieved 29 January 2009.
  4. 1 2 "VH-71 Officially Dead." Archived 29 September 2015 at the Wayback Machine AIR International, 4 June 2009. Accessed 9 September 2013.
  5. 1 2 3 4 GAO-11-380R, "Defense Acquisitions: Application of Lessons Learned and Best Practices in the Presidential Helicopter Program", p. 2. Government Accountability Office. Washington, D.C.: U.S. Government Printing Office, 25 March 2011. Accessed 9 September 2013.
  6. Superville, Darlene (16 July 2009). "First Female Marine One pilot finishes tour". Marine Corps Times . Associated Press. Archived from the original on 26 August 2011. Retrieved 20 July 2009.
  7. On Board Marine One (Television production). Discovery Channel. 25 January 2009. Archived from the original on 2 April 2015. Retrieved 26 January 2009.
  8. 1 2 3 4 Baker, Peter. "Cost Nearly Doubles For Marine One Fleet." Washington Post, 17 March 2008. Accessed 9 September 2013.
  9. 1 2 3 4 Aitoro, Jill R. "Failed Helicopter Program, Revisited." Washington Business Journal, 28 March 2011. Accessed 9 September 2013.
  10. 1 2 "Obama Mulls Chopping Costs On Helicopter Fleet". Agence-France Presse, 24 February 2009. Accessed 9 September 2013.
  11. 1 2 3 4 GAO-11-380R, Defense Acquisitions: Application of Lessons Learned and Best Practices in the Presidential Helicopter Program, p. 3. Government Accountability Office. Washington, D.C.: U.S. Government Printing Office, 25 March 2011. Accessed 9 September 2013.
  12. Trimble, Stephen. "New VXX Competition Reveals Changes for US Presidential Helicopter." Flight International, 18 February 2010. Accessed 9 September 2013.
  13. Trimble, Stephen. "Boeing Says AW101 One of Its Three Options for VXX." Flight International, 6 June 2010. Accessed 9 September 2013.
  14. GAO-13-826R, "Department of Defense's Waiver of Competitive Prototyping Requirement for the VXX Presidential Helicopter Replacement Program", p. 1-2. Government Accountability Office. Washington, D.C.: U.S. Government Printing Office, 6 September 2013. Accessed 9 September 2013.
  15. 1 2 3 Cavas, Christopher. "Sikorsky the Only Apparent Bidder for VXX." Defense News, 3 August 2013. Accessed 9 September 2013.
  16. Christian Davenport. "Sikorsky wins $1.2 billion contract to build Marine One helicopters". The Washington Post. Archived from the original on 9 May 2014. Retrieved 14 May 2014.
  17. Madhani, Aamer (19 August 2024). "Biden takes inaugural flight in long-delayed new 'Marine One' helicopter". Associated Press. Archived from the original on 19 August 2024. Retrieved 19 August 2024.
  18. 1 2 "On Board Marine One, Presidential Fleet". National Geographic, 2009. Retrieved 5 September 2013.
  19. Speech by Bruce Babbitt. BLM.gov, 17 February 2000.
  20. "Marine One – The President Doesn't Just Have An Airplane - Helimart". Archived from the original on 12 May 2014. Retrieved 10 May 2014.
  21. "HMX-1: Marine One Presidential Pilots". Chonday.com. April 2015.
  22. "AN/ALQ-144 Infrared Jammer". Military.com.
  23. "Suppression Systems for the AH-1 Helicopter and OV-1 Aircraft, and the AN/ALQ-144 Jammer for Helicopters"
  24. HMX-1. GlobalSecurity.org, 2010-08-11.

Related Research Articles

<span class="mw-page-title-main">Boeing Vertol CH-46 Sea Knight</span> Tandem transport helicopter designed by Vertol

The Boeing Vertol CH-46 Sea Knight is an American medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines. It was designed by Vertol and manufactured by Boeing Vertol following Vertol's acquisition by Boeing.

<span class="mw-page-title-main">Bell Boeing V-22 Osprey</span> Military transport tiltrotor

The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. It is designed to combine the functionality of a conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft. The V-22 is operated by the United States and Japan, and is not only a new aircraft design, but a new type of aircraft that entered service in the 2000s, a tiltrotor compared to fixed wing and helicopter designs. The V-22 first flew in 1988 and after a long development was fielded in 2007. The design essentially combines the vertical takeoff ability of a helicopter, but the range of a fixed-wing airplane.

<span class="mw-page-title-main">Sikorsky UH-60 Black Hawk</span> Series of military utility transport helicopters

The Sikorsky UH-60 Black Hawk is a four-blade, twin-engine, medium-lift utility military helicopter manufactured by Sikorsky Aircraft. Sikorsky submitted the S-70 design for the United States Army's Utility Tactical Transport Aircraft System (UTTAS) competition in 1972. The Army designated the prototype as the YUH-60A and selected the Black Hawk as the winner of the program in 1976, after a fly-off competition with the Boeing Vertol YUH-61.

<span class="mw-page-title-main">Sikorsky SH-3 Sea King</span> American anti-submarine helicopter

The Sikorsky SH-3 Sea King is an American twin-engined anti-submarine warfare (ASW) helicopter designed and built by Sikorsky Aircraft. A landmark design, it was one of the first ASW rotorcraft to use turboshaft engines.

<span class="mw-page-title-main">Sikorsky SH-60 Seahawk</span> Naval helicopter series of the H-60/S-70 family

The Sikorsky SH-60/MH-60 Seahawk is a twin turboshaft engine, multi-mission United States Navy helicopter based on the United States Army UH-60 Black Hawk and a member of the Sikorsky S-70 family. The most significant modifications are the folding main rotor blades and a hinged tail to reduce its footprint aboard ships.

Sikorsky Aircraft is an American aircraft manufacturer based in Stratford, Connecticut. It was established by the Russian aviation pioneer Igor Sikorsky in 1923, and was among the first companies to manufacture helicopters for civilian and military use. It also produced seaplanes for passenger transport and surface vehicles such as trains and boats.

<span class="mw-page-title-main">AgustaWestland AW101</span> Multi-role helicopter family by AgustaWestland

The AgustaWestland AW101 is a medium-lift helicopter in military and civil use. First flown in 1987, it was developed by a joint venture between Westland Helicopters in the United Kingdom and Agusta in Italy in response to national requirements for a modern naval utility helicopter. Several operators, including the armed forces of Britain, Denmark, and Portugal, use the name Merlin for their AW101 aircraft. It is manufactured at factories in Yeovil, England, and Vergiate, Italy. Licensed assembly work has also taken place in Japan and the United States.

<span class="mw-page-title-main">Sikorsky CH-53E Super Stallion</span> Transport helicopter series by Sikorsky

The Sikorsky CH-53E Super Stallion is a heavy lift helicopter operated by the United States military. As the Sikorsky S-80, it was developed from the CH-53 Sea Stallion, mainly by adding a third engine, adding a seventh blade to the main rotor, and canting the tail rotor 20°. It was built by Sikorsky Aircraft for the United States Marine Corps. Developed in the 1970s, it entered service in 1981, and is planned to be in service into the 2030s. It is one of the largest helicopters, and military helicopters in service, and is operated from U.S. Navy ships or from land.

<span class="mw-page-title-main">Sikorsky CH-53 Sea Stallion</span> 1964 transport helicopter family by Sikorsky

The CH-53 Sea Stallion is an American family of heavy-lift transport helicopters designed and built by the American manufacturer Sikorsky Aircraft. The Sea Stallion was originally developed in response to a request from the United States Navy's Bureau of Naval Weapons made in March 1962 for a replacement for the Sikorsky CH-37 Mojave helicopters flown by the United States Marine Corps (USMC).

<span class="mw-page-title-main">HMX-1</span> Military unit

Marine Helicopter Squadron One (HMX-1) is a United States Marine Corps helicopter squadron responsible for the transportation of the president and vice president of the United States, heads of state, Department of Defense officials, and other VIPs as directed by the Marine Corps and White House Military Office. A Marine helicopter with the president aboard uses the call sign "Marine One". Previously, HMX-1 was also tasked with operational test and evaluation (OT&E). This task was reassigned to VMX-1 in Yuma, Arizona; since the contract award of the new presidential helicopter in 2014 to Sikorsky Aircraft, however, HMX-1 has assumed the temporary role of OT&E for this platform, because of its unique nature and mission. The VH-92A first flew in 2017 and is expected to be operational sometime after 2022. Nicknamed "Nighthawks", HMX-1 is headquartered at Marine Corps Air Facility Quantico, Virginia, and maintains detachments at Joint Base Anacostia–Bolling in Washington, D.C., and Joint Base Andrews Naval Air Facility in Maryland.

<span class="mw-page-title-main">Sikorsky S-70</span> Family of medium transport/utility military helicopters

The Sikorsky S-70 is an American medium transport/utility helicopter family manufactured by Sikorsky Aircraft. It was developed for the United States Army in the 1970s, winning a competition to be designated the UH-60 Black Hawk and spawning a large family in U.S. military service. New and improved versions of the UH-60 have been developed since. Civilian versions, and some military versions, are produced under various S-70 model designations.

<span class="mw-page-title-main">Lockheed Martin VH-71 Kestrel</span> Variant of the AgustaWestland AW101

The Lockheed Martin VH-71 Kestrel was a variant of the AgustaWestland AW101 that was being manufactured to replace the United States Marine Corps' Marine One U.S. Presidential transport fleet. Originally marketed for various competitions as the US101, it was developed and manufactured in the US by a consortium headed by Lockheed Martin, consisting of Lockheed Martin Systems Integration – Owego (LMSI), AgustaWestland and Bell Helicopter.

<span class="mw-page-title-main">Sikorsky CH-53K King Stallion</span> Heavy transport helicopter

The Sikorsky CH-53K King Stallion is a heavy transport helicopter designed and produced by Sikorsky Aircraft. The King Stallion is an evolution of the long running CH-53 series of helicopters which has been in continuous service since 1966, and features three up-rated 7,500 shp (5,590 kW) engines, new composite rotor blades, and a wider aircraft cabin than its predecessors. It is the largest and heaviest helicopter in the U.S. military.

<span class="mw-page-title-main">United States Marine Corps Aviation</span> Air branch of the U.S. Marine Corps

The United States Marine Corps Aviation (USMCA) is the aircraft arm of the United States Marine Corps. Aviation units within the Marine Corps are assigned to support the Marine Air-Ground Task Force, as the aviation combat element, by providing six functions: assault support, antiair warfare, close air support, electronic warfare, control of aircraft and missiles, and aerial reconnaissance. The Corps operates rotary-wing, tiltrotor, and fixed-wing aircraft mainly to provide transport and close air support to its ground forces. Other aircraft types are also used in a variety of support and special-purpose roles. All Marine Corps aviation falls under the influence of the Deputy Commandant for Aviation, whose job is to advise the Commandant of the Marine Corps in all matters relating to aviation, especially acquisition of new assets, conversions of current aircraft, maintenance, operation, and command.

<span class="mw-page-title-main">Naval Support Facility Anacostia</span> United States Navy base in Washington, DC, United States

Naval Support Facility (NSF) Anacostia is a United States Naval Base in Washington, D.C., close to where the Anacostia River joins the Potomac River. On 1 October 2010 the base was conjoined with the adjacent Bolling Air Force Base to form the Joint Base Anacostia–Bolling in accordance with congressional legislation implementing the recommendations of the 2005 Base Realignment and Closure Commission. NSF Anacostia fell under the command of Naval Support Activity Washington.

<span class="mw-page-title-main">Special Air Mission</span> U.S. governmental flight service

The United States Air Force Special Air Mission provides air transportation for the president of the United States (POTUS), vice president of the United States (VPOTUS), first lady of the United States (FLOTUS), presidential Cabinet, U.S. congressional delegations (CODELs), and other high-ranking American and foreign dignitaries.

<span class="mw-page-title-main">VXX</span> Procurement program to replace aging Marine One helicopters

VXX, officially the Presidential Helicopter Replacement Program, is a procurement program to replace aging Marine One helicopters that transport the President of the United States. The current VH-3 helicopters have aging airframes, having entered service with United States Marine Corps Marine Helicopter Squadron One (HMX-1) in 1963. The VH-3D replaced the VH-3A by 1976. The smaller VH-60N entered service in 1987. On 7 May 2014, it was announced that the Sikorsky VH-92 had won the VXX competition.

<span class="mw-page-title-main">Future Vertical Lift</span> Planned family of US military helicopters

Future Vertical Lift (FVL) is a plan to develop a family of military helicopters for the United States Armed Forces. Five different sizes of aircraft are to be developed, sharing common hardware such as sensors, avionics, engines, and countermeasures. The U.S. Army has been considering the program since 2004. FVL is meant to develop replacements for the Army's UH-60 Black Hawk, AH-64 Apache, CH-47 Chinook, and OH-58 Kiowa helicopters. The precursor for FVL is the Joint Multi-Role (JMR) helicopter program.

<span class="mw-page-title-main">Sikorsky VH-92 Patriot</span> American Presidential transport helicopter

The Sikorsky/Lockheed Martin VH-92 Patriot is an American helicopter now operational as the United States Marine Corps' Marine One U.S. presidential transport fleet. It is a militarized variant of the Sikorsky S-92 and is larger than the former Marine One helicopters.

References