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{{Use mdy dates|date=May 2020}} {{Use mdy dates|date=May 2020}}
{{Infobox weapon {{Infobox weapon
| image = USNavy-CHGB2017Test.jpg
| caption= 2017 test launch of a prototype of the Common-Hypersonic Glide Body
| image_size = 300
| is_missile=yes | is_missile=yes
| origin= United States | origin= United States

Revision as of 14:26, 15 May 2021

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U.S. Air Force prototype missile

Long-Range Hypersonic Weapon
File:USNavy-CHGB2017Test.jpg2017 test launch of a prototype of the Common-Hypersonic Glide Body
Place of originUnited States
Service history
In service2023 (planned)
Used byUnited States Army (planned).
United States Navy (planned)
Production history
ManufacturerLockheed Martin
Specifications
Mass16,300 pounds
Diameter34 inches (reportedly)
Operational
range		1725 mi (2775 km)
Maximum speed Mach 5+

The Long-Range Hypersonic Weapon (LRHW) is a surface-to-surface hypersonic missle planned for use by the United States Army. The United States Navy intends to procure a ship/submarine-launched variant of the missile as part of the service's Intermediate-Range Conventional Prompt Strike (IRCPS) program. The weapon consists of a large rocket booster that carries the unpowered Common-Hypersonic Glide Body (C-HGB) in its nose. Once the booster reaches significant altitude and speed, it releases the C-HGB, which glides at hypersonic speeds as it descends towards its target. Dynetics will build the glide vehicle while Lockheed Martin will build the booster and assemble the missile and launch equipment.

The C-HGB has been successfully tested twice, in October 2017 and March 2020. The missile is planned to enter service with the Army in 2023. The Navy intends to field the weapon aboard its Zumwalt-class destroyers by 2025 and later on its Block V Virginia-class submarines and potentially its Ohio-class ballistic missile submarines.

Development and testing

Common-Hypersonic Glide Body

In 2018, the Navy was designated to lead the design of the Common-Hypersonic Glide Body with input from the Army's Rapid Capabilities and Critical Technologies Office.

Design

The design of the Common-Hypersonic Glide Body is based on the previously developed Alternate Re-Entry System, which was tested in the early 2010s as part of the Army's Advanced Hypersonic Weapon program. The Alternate Re-Entry System was itself based on the Sandia Winged Energetic Reentry Vehicle Experiment (SWERVE) prototype developed by Sandia National Laboratories in the 1980s. Work on the design of the vehicle is done by Sandia, while Dynetics constructs prototypes and test units.

Testing

The first test of the Common-Hypersonic Glide Body, Intermediate Range Conventional Prompt Strike Flight Experiment-1, was on 30 October 2017. A missile capable of fitting in the launch tube of an Ohio-class ballistic missile submarine flew over 2,000 nautical miles from Hawaii to the Marshall Islands at hypersonic speeds. The Army hopes to begin live-fire testing of the LRHW sometime in the 2022.

Planned service entry

The United States Army intends to deploy the LRHW in batteries of four launch trucks, each holding two canisterized missiles in transporter erector launchers.

References

  1. <https://www.thedrive.com/the-war-zone/39851/army-delivers-first-canisters-to-its-new-hypersonic-missile-battery-but-wont-say-where-its-based
  2. ^ Sydney J. Freedberg Jr. (12 May 2021) Army Discloses Hypersonic LRHW Range Of 1,725 Miles; Watch Out China Ranges for:
  3. <https://www.thedrive.com/the-war-zone/39851/army-delivers-first-canisters-to-its-new-hypersonic-missile-battery-but-wont-say-where-its-based>
  4. <https://www.thedrive.com/the-war-zone/39867/navy-wants-triple-packed-hypersonic-missile-modules-on-its-stealthy-zumwalt-destroyers
  5. <https://www.thedrive.com/the-war-zone/35369/army-shows-first-ever-footage-of-new-hypersonic-missile-in-flight-and-impacting>
  6. Roblin, Sebastien (April 30, 2020). "The Pentagon Plans to Deploy an Arsenal of Hypersonic Weapons in the 2020s". Forbes. Retrieved May 15, 2021.
  7. LaGrone, Sam (April 28, 2021). "CNO: Hypersonic Weapons at Sea to Premiere on Zumwalt Destroyers in 2025". USNI News. Retrieved May 15, 2021.
  8. "Hypersonics by 2023". United States Army. September 4, 2019. Retrieved May 15, 2021.
  9. <https://fas.org/sgp/crs/weapons/R45811.pdf
  10. Threvithick, Joseph (June 3, 2019). "Here's What The Army's First Ever Operational Hypersonic Missile Unit Will Look Like". The Drive. Retrieved May 15, 2021.
  11. "Conventional Prompt Global Strike and Long-Range Ballistic Missiles". Congressional Research Service. January 8, 2019. Retrieved May 15, 2021.
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