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Home» News»U.S. Navy Tests Hypersonic Rocket Motor with Thrust-Vectoring System
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U.S. Navy Tests Hypersonic Rocket Motor with Thrust-Vectoring System
An overhead photo of the 34.5” CPS missile body and first stage rocket motor firing during the static rocket motor test on October 28, 2021 at Promontory, Utah. This is the first time the test included a thrust-vectoring control system for the rocket motor. Northrop Grumman photo.

U.S. Navy Tests Hypersonic Rocket Motor with Thrust-Vectoring System

The U.S. Navy, in conjunction with the U.S. Army, are developing a Hypersonic missile called the Conventional Prompt Strike (CPS) Hypersonic missile for the U.S. Navy and the Long-Range Hypersonic Weapon (LRHW) for the U.S. Army. Both missiles will carry the Common Hypersonic Glide Body (CHGB) warhead vehicle inside that is also a development collaboration between both services.

Peter Ong 29 Oct 2021

More details about the U.S. Navy’s pursuit for the CPS Hypersonic missile and its integration into existing warships and nuclear-powered submarines can be read here.

Both the U.S. Army’s Long-Range Hypersonic Weapon (LRHW) and the U.S. Navy’s Conventional Prompt Strike (CPS) Hypersonic missiles have the same diameter of 34.5” (2.87 feet or 0.87 meters).  Two Hypersonic missiles will fit on a U.S. Army M870A3 trailer for transport and firing, and hypothetically in the future, Army LRHWs might be deployed aboard U.S. Navy ships.

The delivery of the first prototype hypersonic hardware to Soldiers of the 5th Battalion, 3rd Field Artillery Regiment, 17th Field Artillery Brigade is completed on Oct. 7, 2021, with a ceremony at Joint Base Lewis-McChord, Wash. The Army is prototyping the land-based, ground launched Long Range Hypersonic Weapon (LRHW) that will provide residual combat capability to Soldiers by Fiscal Year 2023. [Author’s Note: This inert LRHW round gives an indication as to the length and diameter of the U.S’s common Hypersonic missile and the Common Hypersonic Glide Body (CHGB) warhead inside. While smaller than peer nations’ Hypersonic missiles, the U.S. Military might remedy the LRHW and CPS Hypersonic missile’s smaller diameter by sheer quantity, firing more than one Hypersonic missile at the same target although a CHGB impact at Mach 5+ hypersonic speeds would be devasting enough, respectively. (U.S. Army photo by Spc. Karleshia Gater, September 15, 2021)


U.S. Navy Press Release issued 28 October, 2021:

The Navy Strategic Systems Programs (SSP) successfully conducted a second test of the First Stage Solid Rocket Motor (SRM) on October 28, 2021, in Promontory, Utah, as part of the development of the Navy’s Conventional Prompt Strike (CPS) offensive hypersonic strike capability and the Army’s Long Range Hypersonic Weapon (LRHW). The offensive weapon systems will enable precise and timely strike capability against deep inland targets in contested environments.

”Today’s successful test brings us one step closer to the design validation of our new hypersonic missile that will be fielded by both the Navy and the Army,” said Vice Adm. Johnny R. Wolfe Jr, Director, Navy’s Strategic Systems Programs, which is the lead designer for the common hypersonic missile. ”We are on schedule for the upcoming flight test of the full common hypersonic missile. Our partners across government, industry, and academia are continuing the excellent work that is essential to providing a hypersonic capability to our warfighters as quickly as possible.”

This SRM test is part of a series of tests validating the newly developed common hypersonic missile.  This live fire test follows previous tests of the First and Second Stages on May 27 and August 25, 2021. This static fire test marked the first time the First Stage SRM included a thrust vector control system. The thrust vector control system is a key component of the missile booster that allows the rocket motors to be maneuverable in flight.

U.S. peer competitors are weaponizing and fielding hypersonic capabilities, creating warfighting asymmetry that must be addressed. These tests are vital in developing a Navy-designed common hypersonic missile that the Navy and Army will field.  The common hypersonic missile will consist of the first stage SRM as part of a new missile booster combined with the Common Hypersonic Glide Body (CHGB).

The Navy and Army are on track to test the full common hypersonic missile that will be a catalyst for fielding the CPS and LRHW weapon systems. The services are working closely with government national laboratories and industry to continue developing and producing the common missile.

“This test continues to build momentum to deliver hypersonics capability for our warfighters in support of the National Defense Strategy,” said LTG L. Neil Thurgood, Director of Hypersonics, Directed Energy, Space and Rapid Acquisition. “Fielding hypersonic weapons is one of the highest priority modernization areas the Department of Defense is pursuing to ensure our continued battlefield dominance, and the joint team did a tremendous job executing this test and keeping us on schedule.”Information gathered from ongoing tests will further inform the services offensive hypersonic technology development. Hypersonic weapons are capable of flying at speeds greater than five times the speed of sound (Mach 5), are highly maneuverable and operate at varying altitudes. The common hypersonic missile design for sea and land-based applications provides economies of scale for future production and relies upon a growing U.S. hypersonics industrial base.

U.S. Navy Tests Hypersonic Rocket Motor with Thrust-Vectoring System
October 28, 2021, Promontory, Utah. The US Navy, in collaboration with the US Army, conducts a static fire test of the first stage of the newly developed 34.5” common hypersonic missile that will be fielded by both services. Northrop Grumman photo.
Hypersonics 2021-10-29
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Authors

Posted by : Peter Ong
Peter Ong is a Freelance Writer with United States and International Federation of Journalists (IFJ) media credentials and lives in California. Peter has a Bachelor's Degree in Technical Writing/Graphic Design and a Master's Degree in Business. He writes articles for defense, maritime and emergency vehicle publications.

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