Top Tweets for #HACM
Whether through Hypersonic Attack Cruise Missile (#HACM) or larger airbreathing systems, the US Air Force is following an S&T strategy established in the early 2010s during the finalization of the DARPA partnership following X-51 Waverider. While timelines have shifted, the core objective remains constant. This long term roadmap view represents a "stair-step" approach to technology maturation where each program serves as a building block for the next.
The current push toward operational capability with HACM is the immediate goal, but the development of larger, more powerful scramjet architectures signals an intent to move beyond tactical missiles and toward more substantial air vehicles by the 2040s (if not sooner). (📽️USAF)
The Air Force sees the Hypersonic Attack Cruise Missile #HACM as its path to affordable hypersonic capability, but there is clearly more in the works for air breathing systems. Building on the successes of X-51 and #HAWC, the service worked with both scramjet propulsion providers (Northrop Grumman & L3Harris) to successfully ground test a significantly larger engines.
Approximately 18 feet in length and capable of thrust in excess of 13,000 lbs, these "fighter-engine sized" powerplants are designed for much more than tactical cruise missiles. The Air Force concluded more than 12-months of rigorous ground testing on these engines in 2020.
From X-43/X-51 to #HAWC and eventually to #HACM, the road to successfully fielding scramjet powered weapons is littered with complexity and challenges. These are vastly different from those of boost-glide or simpler ramjet counterparts.
From aero-propulsive coupling to supersonic combustion stability (comparable to lighting a match in a hurricane) and integrated thermal management, this requires a significantly more complicated design and flight test program to deliver operational capability. Air launch envelopes and platform constraints (length and other considerations) further complicate matters.
This explains why progress is measured in decades and why several programs have been needed to expand the flight and launch envelope. This is not a "test once or twice and field" technology. HAWC utilized what Steve Walker described as a third generation scramjet engine, building on decades of refinement informed by ground and flight tests. HACM and its follow-on capabilities will build on that further.
The US Air Force plans to begin flight testing of the #Scramjet powered Hypersonic Attack Cruise Missile #HACM this year for a rapid fielding in the second half of next year. Building on the highly successful Hypersonic Air-breathing Weapon Concept (HAWC) program that incorporated what Steve Walker (DARPA) called the "3rd generation" scramjet engine, HACM will the first hypersonic weapon the Air Force fields on tactical fighters with USAF F-15E and RAAF F/A-18E/F being threshold platforms.
The Air Force’s #HACM program, an MTA rapid prototyping effort, is developing a conventional, air-launched hypersonic missile that can be carried by an F-15 tactical aircraft. The missile consists of two stages, a rocket booster and a #scramjet cruiser..The Air Force plans to build 13 missiles during the rapid prototyping effort, including test assets, spares, and rounds for initial operational capability. The Air Force plans to initiate a rapid fielding effort in fiscal year 2027 to field additional missiles and iterate on the missile’s design prior to making a full production decision ~ GAO
When it enters service (around 2027), #HACM will offer more than 250 miles of powered flight at speeds above Mach 5 and at altitudes above 15 miles — all in a package compatible with tactical fighters such as the F-15E, F/A-18F, and F-35, each capable of carrying at least two AURs. Much of the work under the Air Force’s Next Generation Air Dominance umbrella remains unannounced, but penetrating F-47s and space-based capabilities that enable ultra-long kill chains (500+ miles) are likely among the candidate solutions.
“What’s in the F-35C can give us a weapons-quality track that we can push back to the E-2D..Once the Super Hornets launch their standoff weapons, those missiles are guided by a data-stream from the E-2D, Manazir said. Toward the latter stages of the missiles’ flight, the F-35C would take-over guidance of the weapons for the end game" ~ Inside the Navy’s Next Air War | USNI 🔗👇
Finally, we have the #Hypersonic Attack Cruise Missile or HACM. As with the ARRW described above, HACM traces its origins to the DARPA-AFRL collaboration on the Hypersonic Air Breathing Weapon Concept or HAWC program. The HAWC program, launched at the same time as DARPA-AFRL’s TBG, funded two propulsion suppliers, and two OEMs to mature and demonstrate air launched scramjet powered hypersonic vehicles. The program was an overwhelming success with both the Raytheon (weapon) – Northrop Grumman (scramjet propulsion), and Lockheed Martin (weapon) – Aerojet Rocketdyne (scramjet propulsion) teams achieving multiple successful flights. USAF subsequently launched the #HACM program eventually selecting Raytheon and Northrop Grumman to proceed with developing an air-launched scramjet powered cruise missile. HACM will be the primary Hypersonic Weapon for the F-15E and EX platforms (along with bombers). It is expected to be have a Mach 5+ top-speed and about a 500-mile range. 6/7
DARPA liked #HAWC so much that it wanted more. Even as USAF took the HAWC developed and demonstrated technologies and transitioned them to the #HACM weapon program, DARPA initiated the More Opportunities with the Hypersonic Air-breathing Weapon Concept or #MoHAWC effort to further develop its portfolio of scramjet propulsion technologies.
The Air Force hopes to field early versions of its air launched #Scramjet powered Hypersonic Attack Cruise Missile or #HACM in 2027. To get there, it spend more than a decade focused on developing and testing technologies specifically for such a weapon. This included maturing two teams and flight testing air launched scramjet powered weapon concepts in partnership with DARPA. The US Navy does not appear to have pursued any such risk-reduction activities for a carrier launched hypersonic anti-ship capability. What the Navy did do however was de-risk and demonstrate Mach 3+ air breathing surface strike capability via a number of initiatives aimed at advancing this capability. A few of which apparently even completed flight demonstrations recently. Pursuing those capabilities through to production might be something the program can realistically achieve within its budget and schedule for #HALO.
You want a Mach 5+ air breathing hypersonic weapon that is 15 ft in length and can be brought back on a carrier (at least 2 on a SH) then you should have ideally done one of two things -
1⃣ Fund a robust risk reduction effort to mature underlying technology for such a compact air breathing hypersonic weapon
2⃣ Make it clear that funding available is practically unlimited
The Navy did neither. That's why it is going back to the drawing board on HALO.
Meanwhile, those not bound by strict US Navy carrier requirements for weapon length, and weight are moving forward. Both the USAF and the RAAF will field the Hypersonic Attack Cruise Missile #HACM on the F-15E/EX (and bombers) and the F/A-18 E/F.
https://t.co/ZIcmHXVuQp
Happy New Month!
#HACM
@Zokten1 @HuseyinMYuceol @drcetiner
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@insaatsektoru....
"Nothing New on the Western Front"...
Source: @tuikbilgi
#Dışticaret
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Investing in the healing of survivors is not just about recovery, it's a powerful strategy to break the cycles that fuel child marriage. When survivors heal they rise, speak out, and lead change. Healing is prevention. Healing is justice.
#EndChildMarriage
#HACM
Yesterday,the #HACM team embarked on a visit to Hindocha Primary School, where we engaged in a remarkable interaction with the pupils.
#IBelongToSchool
#EndChildMarriage
#ProtectAllChildren
Unlike the #Scramjet powered #Hypersonic Attack Cruise Missile #HACM, the AGM-183A #ARRW Mid-Tier Acquisition effort has concluded its testing phase and is ready to produce and deliver operational prototypes while advancing the program to a larger EMD effort for follow on development. #HACM is about 3 years away from that stage.
Restoring AGM-183A production funding is an extremely wise decision from the administration. The Tactical Boost Glide (TBG) based #ARRW offers significantly greater range & speed over the scramjet powered #HACM making it a complementary capability. DARPA/AFRL pursued both HAWC and TBG for this same reason. It also maintains 2 teams in air-launched #hypersonic production programs. Lastly, ARRW significantly pushes the US SOTA in terms of boost glide vehicles. Production decision means the more capable glider will have a production base and be a candidate for future technology insertions.
#ARRW is well tested and production ready!
The Air Force's fiscal year 2026 budget request may include procurement dollars for the Lockheed Martin AGM-183A Air-Launched Rapid Response Weapon #ARRW despite opting in FY-25 to all but kill the hypersonic program, service Chief of Staff Gen. David Allvin said today. 🔗👇
Today, we join the rest of the world to say NO to all forms of corporal punishment, especially in schools, families, and communities where children live. Every child deserves to grow in a safe environment, with no violence.
#HACM #EndCorporalPunishment #ProtectChildren
BREAKING: U.S. Navy cancels high priority HALO hypersonic anti-ship missile, citing cost concerns, a senior U.S. official tells me. More to come via @navalnewscom
Engi-Mat transparent IR (MWIR & SWIR) windows for hypersonic vehicles. Program transition target - Hypersonic Attack Cruise Missile. #HACM
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