Author Topic: General Hypersonic Flight Related Topics  (Read 177936 times)

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #360 on: 05/05/2022 04:16 pm »
Quote
Aerojet Rocketdyne has been selected by
@LockheedMartin
 to power an advanced solid rocket motor booster for the second stage of
@DARPA
’s hypersonic weapon system, known as Operational Fires or OpFires. #Hypersonics #PoweringDefense

More https://okt.to/tu9Rs0

https://twitter.com/AerojetRdyne/status/1522235181205180416

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #361 on: 05/07/2022 09:03 pm »
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Darkstar, the fictional secret hypersonic jet from the hotly anticipated new Top Gun: Maverick film, set to release May 27, might just be a whole lot more realistic than we previously thought. The chairman, president and CEO of Lockheed Martin Corporation, James Taiclet, has confirmed that the company's legendary Skunk Works advanced projects division worked with the producers of the movie and helped create the fictional design.
The War Zone had reached out to Skunk Works directly regarding this collaboration. They would not comment directly but subsequently directed us to a post that Taiclet made on LinkedIn following the world premiere preview showing of the movie at the U.S. Navy's Naval Air Station North Island's Lowry Theater in San Diego, California, this week. Taiclet said that members of the Skunk Works team had “partnered with Top Gun’s producers to bring cutting-edge, future forward technology to the big screen” before referencing “critical work in hypersonic flight.”

https://www.thedrive.com/the-war-zone/skunk-works-helped-create-the-darkstar-jet-for-top-gun-maverick

Offline catdlr

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Re: General Hypersonic Flight Related Topics
« Reply #362 on: 05/08/2022 04:53 am »
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Darkstar, the fictional secret hypersonic jet from the hotly anticipated new Top Gun: Maverick film, set to release May 27, might just be a whole lot more realistic than we previously thought. The chairman, president and CEO of Lockheed Martin Corporation, James Taiclet, has confirmed that the company's legendary Skunk Works advanced projects division worked with the producers of the movie and helped create the fictional design.
The War Zone had reached out to Skunk Works directly regarding this collaboration. They would not comment directly but subsequently directed us to a post that Taiclet made on LinkedIn following the world premiere preview showing of the movie at the U.S. Navy's Naval Air Station North Island's Lowry Theater in San Diego, California, this week. Taiclet said that members of the Skunk Works team had “partnered with Top Gun’s producers to bring cutting-edge, future forward technology to the big screen” before referencing “critical work in hypersonic flight.”

https://www.thedrive.com/the-war-zone/skunk-works-helped-create-the-darkstar-jet-for-top-gun-maverick

A follow-up video on the same topic:

Tony De La Rosa

Offline Star One

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General Hypersonic Flight Related Topics
« Reply #363 on: 05/10/2022 08:25 am »
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WASHINGTON — The Defense Advanced Research Projects Agency, in a bid to mature its scramjet-powered hypersonic weapon program, is seeking $60 million in its fiscal 2023 budget for the next phase of the Hypersonic Air-breathing Weapons Concept.
The new-start program, dubbed MoHAWC, is a successor to HAWC, developed jointly with the Air Force using Raytheon and Lockheed Martin as prime contractors. Both companies conducted successful test flights of their vehicles, with Raytheon’s flying in September and Lockheed’s in March. The HAWC vehicles are powered by scramjet engines designed to offer better, more efficient performance at hypersonic speeds. Northrop Grumman built the propulsion system for Raytheon’s HAWC vehicle and Aerojet provided Lockheed’s.

https://www.defensenews.com/battlefield-tech/2022/05/09/darpa-maturing-scramjet-powered-hypersonic-weapon-concept-through-follow-on-program/
« Last Edit: 05/10/2022 08:25 am by Star One »

Online RON_P

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Re: General Hypersonic Flight Related Topics
« Reply #364 on: 05/10/2022 05:00 pm »
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WASHINGTON — The Defense Advanced Research Projects Agency, in a bid to mature its scramjet-powered hypersonic weapon program, is seeking $60 million in its fiscal 2023 budget for the next phase of the Hypersonic Air-breathing Weapons Concept.
The new-start program, dubbed MoHAWC, is a successor to HAWC, developed jointly with the Air Force using Raytheon and Lockheed Martin as prime contractors. Both companies conducted successful test flights of their vehicles, with Raytheon’s flying in September and Lockheed’s in March. The HAWC vehicles are powered by scramjet engines designed to offer better, more efficient performance at hypersonic speeds. Northrop Grumman built the propulsion system for Raytheon’s HAWC vehicle and Aerojet provided Lockheed’s.

https://www.defensenews.com/battlefield-tech/2022/05/09/darpa-maturing-scramjet-powered-hypersonic-weapon-concept-through-follow-on-program/
So MoHAWC is a bridge between DARPA HAWC and US air force HACM ( operational weapon) .

Offline CameronD

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Re: General Hypersonic Flight Related Topics
« Reply #365 on: 05/26/2022 12:57 am »
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In #hypersonics, when every second counts, additive manufacturing (3D printing) can shorten manufacturing timelines, make products more affordable and enable new approaches to design.

Learn more about Aerojet Rocketdyne’s advancements in Additive Manufacturing ➡ rocket.com/3D
With sufficient thrust, pigs fly just fine - however, this is not necessarily a good idea. It is hard to be sure where they are
going to land, and it could be dangerous sitting under them as they fly overhead.

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #366 on: 06/05/2022 02:27 pm »
Rocket Sled Traveling At 7,200 km/h (4,363 mph) Successfully Stopped During Hypersonic Test At Holloman

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The test marked the fastest recovery of a monorail sled in over 30 years, and the first time a planned reusable sled was ever recovered at those speeds. The test paves the way for more hypersonic weapons testing.

https://theaviationist.com/2022/06/04/rocket-sled-traveling-at-7200-kmh-stopped/

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #367 on: 06/30/2022 09:06 am »
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A flight test of a hypersonic missile system in Hawaii ended in failure due to a problem that took place after ignition, the Department of Defense said, delivering a fresh blow to a program that has suffered stumbles.

It didn’t provide further details of what took place in the Wednesday test, but said in a statement sent by email “the Department remains confident that it is on track to field offensive and defensive hypersonic capabilities on target dates beginning in the early 2020s.”

https://www.bloomberg.com/news/articles/2022-06-30/us-hypersonic-missile-fails-in-test-in-fresh-setback-for-program

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #368 on: 07/14/2022 10:29 am »
Air Force completes another successful hypersonic test

EGLIN AIR FORCE BASE, Fla. - The Air Force conducted another successful hypersonic test off the Southern California coast on July 12, 2022. The Air-Launched Rapid Response Weapon Booster Test Flight-3 was the 12th flight for the program and third release demonstration. The AGM-183A weapon system reached hypersonic speeds and primary and secondary objectives were met.

"This was another important milestone for the Air Force's first air-launched hypersonic weapon.  The test successfully demonstrated booster performance expanding the operational envelope.  We have now completed our booster test series and are ready to move forward to all-up-round testing later this year.  Congratulations to the entire ARRW team, your dedication and expertise are what got us here," said Maj. Gen. Heath Collins, Program Executive Officer, Armament Directorate.

ARRW is designed to provide the ability to destroy high-value, time-sensitive targets. It will also expand precision-strike weapon systems' capabilities by enabling rapid response strikes against heavily defended land targets.

https://www.eglin.af.mil/News/Article-Display/Article/3091814/air-force-completes-another-successful-hypersonic-test/

Operational Fires Program Successfully Completes First Flight Test

DARPA’s Operational Fires (OpFires) program has successfully executed its first flight test at White Sands Missile Range in New Mexico. The OpFires system achieved all test objectives, including first ever use of a U.S. Marine Corps (USMC) logistics truck as a medium-range missile launcher, missile canister egress, stable flight capture, and use of U.S. Army inventory artillery fire control systems to initiate the test mission. Lockheed Martin built the system, which includes a Northrup Grumman rocket motor, and conducted the test.

The test demonstrated integrated technology maturation of key enabling components including the first stage rocket motor, missile canister, and missile round pallet (MRP). The MRP is designed for use with the load handling system available on USMC and Army logistics vehicles, eliminating the need for a bespoke OpFires transporter erector launcher (TEL).

“This is a promising step toward a TEL on-demand capability for accurately firing medium-range missiles from highly agile, readily available logistics trucks that are already in both the U.S. Army and U.S. Marine Corps inventory,” said Lt. Col. Joshua Stults, the DARPA program manager for OpFires. “Our successful agile hardware development approach prioritizes full-scale flight testing that will inform further design maturation this year.”



The primary goal of OpFires is the development and demonstration of a ground-launched two-stage propulsive system capable of employing hypersonic (greater than five times the speed of sound) payloads from ubiquitous U.S. military trucks (the Palletized Load System family of vehicles) that can penetrate modern air defenses and precisely strike time-critical targets. Compatibility with existing command and control, vehicles, logistics infrastructure, and operating environments ensures that OpFires is highly mobile and rapidly deployable.

“The OpFires program is a great example of how DARPA, in partnership with industry, is helping the Department of Defense facilitate rapid development and testing of advanced hypersonic technologies to accelerate the delivery of transformational warfighting capabilities,” said Michael White, principal director for hypersonics in the Office of the Undersecretary of Defense for Research and Engineering.

The OpFires program will complete an integrated system critical design review in 2022.

https://www.darpa.mil/news-events/2022-07-13a

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #369 on: 07/19/2022 04:55 pm »
Third Test Flight for DARPA’s HAWC Yields New Performance Data

DARPA’s Hypersonic Air-breathing Weapon Concept (HAWC), a missile program conducted in partnership with the U.S. Air Force, completed another successful free flight in early July. This is the second demonstration vehicle built by Raytheon Technologies to meet test objectives. The first Raytheon flight was in September 2021. It was followed by success with a different contractor’s vehicle configuration this past spring.

This second flight of Raytheon’s HAWC design leveraged data collected during the 2021 flight. After release from an aircraft, the first stage boosted the vehicle to the expected scramjet ignition envelope. From there the missile’s Northrop Grumman scramjet engine fired up and propelled the cruiser to speeds greater than Mach 5 (five times the speed of sound) for more than 300 nautical miles and reaching altitudes higher than 60,000 feet.

“This most recent test allowed exploration of more of the flight and scramjet engine operating envelopes,” Andrew "Tippy" Knoedler, HAWC program manager in DARPA's Tactical Technology Office. "DARPA demonstrations are always about learning, whether it’s in the interest of feasibility or practicality, and this time we certainly got new information that will further improve performance.”

Air-breathing vehicles use air captured from the atmosphere to achieve sustained propulsion. The speed and maneuverability of such hypersonic cruise missiles allow both evasion of defenses and quick strikes.

“The Navy and Air Force will have access to the data we’ve collected as they make development decisions for future high-speed weapons,” said Knoedler.

The HAWC flight test data will help validate affordable system designs and manufacturing approaches that will field air-breathing hypersonic missiles to warfighters in the near future.

https://www.darpa.mil/news-events/2022-07-18

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #370 on: 07/29/2022 01:54 pm »
Using RDE propulsion.

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Last week, the Defense Advanced Research Projects Agency (DARPA) quietly unveiled a new high-speed missile program called Gambit. The program is meant to leverage a novel method of propulsion that could have far-reaching implications not just in terms of weapons development, but for high-speed aircraft and even in how the Navy’s warships are powered.

This propulsion system, known as a rotation detonation engine (RDE), has the potential to be lighter than existing jet engines while offering a significant boost in power output, range, and fuel efficiency.

The Gambit missile is just one of a number of programs placing a renewed focus on RDE technology, though for the most part, these systems have managed to fly under the media’s radar. That is, except for Aviation Week & Space Technology Defense Editor Steve Trimble, who has covered these recent developments at length. Trimble was kind enough to discuss that work with me as I sought to better understand just how big a deal this technology could be.

https://www.sandboxx.us/blog/darpas-new-missile-hints-at-truly-game-changing-technology/

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #371 on: 09/23/2022 03:42 pm »
US Air Force Selects Raytheon Missiles & Defense, Northrop Grumman to Deliver First Hypersonic Air-Breathing Missile

TUCSON, Ariz. – Sept. 23, 2022 – Raytheon Missiles & Defense, a Raytheon Technologies (NYSE: RTX) business, in partnership with Northrop Grumman Corporation (NYSE: NOC), has been selected to develop the Hypersonic Attack Cruise Missile (HACM) for the U.S. Air Force (USAF). HACM is a first-of-its-kind weapon developed in conjunction with the Southern Cross Integrated Flight Research Experiment (SCIFiRE), a U.S. and Australia project arrangement.

Under this contract, the Raytheon Missiles & Defense and Northrop Grumman team will deliver operationally ready missiles to the USAF.

“Raytheon Missiles & Defense continues to be at the forefront of hypersonic weapon and air-breathing technology development,” said Wes Kremer, president of Raytheon Missiles & Defense. “With advanced threats emerging around the globe, the Hypersonic Attack Cruise Missile will provide our warfighters a much-needed capability.”

The Hypersonic Attack Cruise Missile is an air-breathing, scramjet powered munition. Scramjet engines use high vehicle speed to forcibly compress incoming air before combustion, which enables sustained flight at hypersonic speeds – Mach 5 or greater. By traveling at these speeds, hypersonic weapons, like HACM, are able to reach their targets more quickly than similar traditional missiles, allowing them to potentially evade defensive systems.

“The Hypersonic Attack Cruise Missile creates a new class of strategically important weapons for the U.S. military,” said Mary Petryszyn, corporate vice president and president, Northrop Grumman Defense Systems. “Our scramjet propulsion technology is ushering in a new era for faster, more survivable and highly capable weapons.”

Raytheon Technologies and Northrop Grumman have been working together since 2019 to develop, produce and integrate Northrop Grumman's scramjet engines onto Raytheon's air-breathing hypersonic weapons. Their combined efforts enable both companies to produce air-breathing hypersonic weapons, the next generation of tactical missile systems.

About Raytheon Technologies

Raytheon Technologies Corporation is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. With four industry-leading businesses  Collins Aerospace, Pratt & Whitney, Raytheon Intelligence & Space and Raytheon Missiles & Defense  the company delivers solutions that push the boundaries in avionics, cybersecurity, directed energy, electric propulsion, hypersonics, and quantum physics. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Waltham, Massachusetts.

About Northrop Grumman

Northrop Grumman is a technology company, focused on global security and human discovery. Our pioneering solutions equip our customers with capabilities they need to connect, advance and protect the U.S. and its allies. Driven by a shared purpose to solve our customers’ toughest problems, our 90,000 employees define possible every day.

https://news.northropgrumman.com/news/releases/us-air-force-selects-raytheon-missiles-defense-northrop-grumman-to-deliver-first-hypersonic-air-breathing-missile

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #372 on: 11/07/2022 05:07 pm »

Offline john smith 19

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Re: General Hypersonic Flight Related Topics
« Reply #373 on: 11/08/2022 09:06 pm »
MD-22 hypersonic demonstrator:

https://twitter.com/jesusfroman/status/1589166708203618304

Has anyone seen this thing in the air?

In actual motion?
MCT ITS BFR SS. The worlds first Methane fueled FFSC engined CFRP SS structure A380 sized aerospaceplane tail sitter capable of Earth & Mars atmospheric flight.First flight to Mars by end of 2022 TBC. Forward looking statements. T&C apply. "Extraordinary claims require extraordinary proof" R. Simberg."Competitve" means cheaper ¬cheap SCramjet proposed 1956. First +ve thrust 2004. US R&D spend to date > $10Bn. #deployed designs. Zero.

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #374 on: 11/11/2022 08:49 am »
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China has unveiled air-launched versions of its ship-based hypersonic missile and a standoff cruise missile at the Zhuhai Airshow, going on this week in the southern Guangdong province near Taiwan.
A pair of air-launched hypersonic missiles carried under the wings of a Xi’an H-6K bomber were at the show, which opened Tuesday and runs through Nov. 13.

https://www.defensenews.com/battlefield-tech/2022/11/10/china-shows-off-air-launched-hypersonic-missile-at-airshow-near-taiwan/

Offline Asteroza

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Re: General Hypersonic Flight Related Topics
« Reply #375 on: 11/23/2022 03:49 am »
So there's been a series of articles about a recent kerosene based mach 9 hypersonic engine from china making the rounds.

starting here
https://interestingengineering.com/innovation/china-worlds-first-kerosene-powered-engine

which came from here
https://www.scmp.com/news/china/science/article/3200105/chinese-team-says-hypersonic-engine-can-hit-mach-9-low-cost-jet-fuel

which sounds like continued work on the oblique detonation wave research previously mentioned in this thread.

Since everybody seems to be unwilling to link to the actual paper, a little digging seems to suggest this is the paper, as the aforementioned articles talk about a RP-3 (equivalent to Jet-A fuel) fueled detonation engine

HAN X,ZHANG W S,ZHANG Z J,et al. Experimental study on RP3 aviation kerosene oblique detonation engine[J]. Journal of Experiments in Fluid Mechanics, 2022,36(X):1-8. doi: 10.11729/syltlx20220090

http://www.syltlx.com/en/article/doi/10.11729/syltlx20220090


Paper's focus seems to describe a bump near the inlet lip to initiate combustion, as the combustor zone itself is insufficient to autoignite kerosene in time.

Offline Star One

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Re: General Hypersonic Flight Related Topics
« Reply #376 on: 11/28/2022 07:48 pm »
HERMEUS COMPLETES HYPERSONIC MILESTONE WITH ENGINE TESTS

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Transition from turbojet to ramjet demonstrated repeatedly, de-risking technology central to hypersonic aircraft

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Chimera is a turbine-based combined cycle engine (TBCC) – which basically means it’s a hybrid between a turbojet and a ramjet. The ability to switch between these two modes allows Hermeus’ first aircraft, Quarterhorse, to take off from a regular runway and then accelerate up to high-Mach speeds.

The cost and speed at which the Hermeus team achieved this milestone is notable. Hermeus designed, built, and tested Chimera in 21 months for $18 million.

https://www.hermeus.com/press-release-tbcc-milestone

Offline Star One

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General Hypersonic Flight Related Topics
« Reply #377 on: 12/13/2022 09:15 am »
Air Force conducts first ARRW operational prototype missile test

EGLIN AIR FORCE BASE, Fla. --  A B-52H Stratofortress successfully released the first All-Up-Round AGM-183A Air-launched Rapid Response Weapon off the Southern California coast, Dec. 9.

This test was the first launch of a full prototype operational missile.  Previous test events focused on proving the booster performance.  Following the ARRW’s separation from the aircraft, it reached hypersonic speeds greater than five times the speed of sound, completed its flight path and detonated in the terminal area. Indications show that all objectives were met.

“The ARRW team successfully designed and tested an air-launched hypersonic missile in five years,” said Brig. Gen. Jason Bartolomei, Armament Directorate Program Executive Officer.  “I am immensely proud of the tenacity and dedication this team has shown to provide a vital capability to our warfighter.”

The 412th Test Wing at Edwards AFB, California, executed the ARRW test flight.

ARRW is designed to enable the U.S. to hold fixed, high-value, time-sensitive targets at risk in contested environments.

https://www.eglin.af.mil/News/Article-Display/Article/3240613/air-force-conducts-first-arrw-operational-prototype-missile-test/

« Last Edit: 12/13/2022 09:17 am by Star One »

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Re: General Hypersonic Flight Related Topics
« Reply #378 on: 12/21/2022 01:06 pm »
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Hermeus has selected the Pratt & Whitney F100 turbofan to integrate into its larger hypersonic engine. Securing an off-the-shelf turbine engine will save Hermeus billions of dollars in research and development costs and years of schedule.

Pratt & Whitney’s F100 turbofan, which is used in the F-15 and F-16 aircraft, will act as the turbine portion of Hermeus’ turbine-based combined cycle engine named Chimera II.

https://www.hermeus.com/press-release-f100-engine

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