Register here

Author Topic: AGM-183A ARRW  (Read 2301 times)

Offline Moose

  • CLEARANCE: Top Secret
  • ***
  • Posts: 874
AGM-183A ARRW
« on: August 08, 2018, 01:27:48 pm »
(Warning, paywall) AW&ST is reporting that Arrow now has a designation, since we have a HAWC thread I would assume a thread for AGM-183 is also called for in the Missile Projects section.
Quote
Newly released Pentagon acquisition documents have confirmed the award of a rapid development and production contract to Lockheed Martin for the Air-Launched Rapid Response Weapon (ARRW), now designated the AGM-183A...

FlightGlobal has a pair of ARRW stories, one about the progress of the program with some general details
Quote
The ARRW, now assigned the designation AGM-183A, evolves from the Tactical Boost Glide (TBG) programme launched in 2014 by the Defense Advanced Research Projects Agency (DARPA). By using a rocket to boost the missile to very high altitudes, the unpowered ARRW then glides down to lower altitudes at speeds up to Mach 20.

Although Lockheed won the $780 million ARRW contract more than a year ago, the USAF was forced to re-open the competition this summer. The original deal was structured as an extension to a DARPA contract for TBG. The USAF later decided to restructure the terms using the service’s own acquisition process. That decision, however, required the USAF to re-consider the two bidders that had already been disqualified under the DARPA programme.
Quote
Neither of their responses, however, met the USAF’s requirements for ARRW. Indeed, Boeing presented an hypersonic design that flew a ballistic re-entry trajectory, rather than a glide profile as required, the USAF document says. Boeing’s design also proposed different propulsion systems for development and production versions of the weapon, which the USAF dismissed for adding too much risk. Raytheon Missile Systems submitted a compliant boost-glide concept, but the USAF criticised the proposal for lacking details about the effort required to field a flight-qualified weapon.

Lockheed’s concept — resubmitted a year after winning the original contract — was unsurprisingly far more detailed and technically compliant with the ARRW requirement, the USAF says. Moreover, Lockheed has worked with suppliers to prepare to meet the “required production rate at 36 months after contract award”, the USAF says.

and a second about the booster being developed to get the glider up to hypersonic speeds
Quote
Aerojet Rocketdyne successfully completed two hot-fire tests of a rocket motor designed to boost an air-launched tactical glide hypersonic vehicle during its initial phase of flight.

The tests, which were done under simulated extreme cold and hot conditions, took place on an undisclosed “recent” date at the Air Force Research Laboratory (AFRL) at Edwards AFB in California, Aerojet Rocketdyne said.

The motors were tested at extreme temperatures to verify they would perform as expected across the full range of anticipated operational conditions, the company says.

In a boost glide hypersonic system, a rocket accelerates its payload to high speeds; the payload then separates from the rocket and glides unpowered to its destination at hypersonic speeds up to Mach 20. Lockheed Martin is leading the development of the USAF’s boost glide programme, called the Air-launched Rapid Response Weapon (ARRW), and Aerojet Rocketdyne is subcontracted to supply the booster rockets.
« Last Edit: August 08, 2018, 06:08:32 pm by Moose »

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10936
Re: AGM-183A ARRW
« Reply #1 on: August 08, 2018, 03:48:16 pm »
I think that Mach 20 number is a mistake.  The article I read used it in the context of, "boost gliders fly at up to Mach 20" with it being a general comment, not necessarily tied to this project.  (Especially if this is something small enough to launch from a fighter.)
"DARPA Hard"  It ain't what it use to be.

Offline DrRansom

  • CLEARANCE: Secret
  • **
  • Posts: 495
  • I really should change my personal text
Re: AGM-183A ARRW
« Reply #2 on: August 08, 2018, 04:41:07 pm »
I think that Mach 20 number is a mistake.  The article I read used it in the context of, "boost gliders fly at up to Mach 20" with it being a general comment, not necessarily tied to this project.  (Especially if this is something small enough to launch from a fighter.)

Isn't that the big question? Just how big the AGM-183A is...

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10936
Re: AGM-183A ARRW
« Reply #3 on: August 08, 2018, 06:04:04 pm »
I think that Mach 20 number is a mistake.  The article I read used it in the context of, "boost gliders fly at up to Mach 20" with it being a general comment, not necessarily tied to this project.  (Especially if this is something small enough to launch from a fighter.)

Isn't that the big question? Just how big the AGM-183A is...

I'd think the upper limit is related to the program to give the B-52 the ability to carry 20,000lb weapons on the wing pylons.  (But I'd think a 5,000lb weapon for the F-15E, F-22, and F-35 might be more useful.) 

Using my calibrated Mk1 that motor doesn't look like it would be in the 20,000lb category.
« Last Edit: August 08, 2018, 06:05:43 pm by sferrin »
"DARPA Hard"  It ain't what it use to be.

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8491
Re: AGM-183A ARRW
« Reply #4 on: August 08, 2018, 09:59:04 pm »
I think that Mach 20 number is a mistake.  The article I read used it in the context of, "boost gliders fly at up to Mach 20" with it being a general comment, not necessarily tied to this project.  (Especially if this is something small enough to launch from a fighter.)

Isn't that the big question? Just how big the AGM-183A is...

I'd think the upper limit is related to the program to give the B-52 the ability to carry 20,000lb weapons on the wing pylons.  (But I'd think a 5,000lb weapon for the F-15E, F-22, and F-35 might be more useful.) 

Using my calibrated Mk1 that motor doesn't look like it would be in the 20,000lb category.
What would be the estimated burn-out speed of a missile that size, guesstimate wise?
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot

Offline stealthflanker

  • CLEARANCE: Secret
  • **
  • Posts: 199
Re: AGM-183A ARRW
« Reply #5 on: August 09, 2018, 01:28:30 am »



What would be the estimated burn-out speed of a missile that size, guesstimate wise?

20000 Lb weapon. Assume the following :

-6000 Kg (13300 lb) of boost propellant
-267 seconds of IsP.
-10 seconds burn time
-49000 ft launch altitude at mach 0.85.

Would give you Mach 14.9/M 15 burnout velocity and burn out altitude of 84680 ft.

---
Tactical 5000 Lb weapon assuming same propellant but reduced to about 3300 Lb would also give M 15 burnout.

Offline litzj

  • CLEARANCE: Secret
  • **
  • Posts: 166
  • BLOG : http://jaesan-aero.blogspot.com/
    • http://jaesan-aero.blogspot.com/
Re: AGM-183A ARRW
« Reply #6 on: August 09, 2018, 05:15:06 am »
I think that Mach 20 number is a mistake.  The article I read used it in the context of, "boost gliders fly at up to Mach 20" with it being a general comment, not necessarily tied to this project.  (Especially if this is something small enough to launch from a fighter.)

Isn't that the big question? Just how big the AGM-183A is...

I'd think the upper limit is related to the program to give the B-52 the ability to carry 20,000lb weapons on the wing pylons.  (But I'd think a 5,000lb weapon for the F-15E, F-22, and F-35 might be more useful.) 

Using my calibrated Mk1 that motor doesn't look like it would be in the 20,000lb category.

size of that motor seems not much different from X-51 booster for me

Offline bring_it_on

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1719
  • I really should change my personal text
Re: AGM-183A ARRW
« Reply #7 on: August 12, 2018, 09:07:37 am »
...
Old radar types never die; they just phased array - Unknown

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10936
Re: AGM-183A ARRW
« Reply #8 on: August 12, 2018, 12:56:50 pm »
I think that Mach 20 number is a mistake.  The article I read used it in the context of, "boost gliders fly at up to Mach 20" with it being a general comment, not necessarily tied to this project.  (Especially if this is something small enough to launch from a fighter.)

Isn't that the big question? Just how big the AGM-183A is...

I'd think the upper limit is related to the program to give the B-52 the ability to carry 20,000lb weapons on the wing pylons.  (But I'd think a 5,000lb weapon for the F-15E, F-22, and F-35 might be more useful.) 

Using my calibrated Mk1 that motor doesn't look like it would be in the 20,000lb category.

size of that motor seems not much different from X-51 booster for me

Possibly.  That was an ATACMs booster.
"DARPA Hard"  It ain't what it use to be.

Offline DrRansom

  • CLEARANCE: Secret
  • **
  • Posts: 495
  • I really should change my personal text
Re: AGM-183A ARRW
« Reply #9 on: August 12, 2018, 03:42:05 pm »
The size is the million dollar question. Lockheed has two hypersonic missile questions, are they both boost glide? Is one boost-glide and the other scramjet? If they're both boost glide, are they tactical / strategic sized? The tactical goes to Lockheed Alabama and the strategic to Lockheed space systems?

Questions. Though the conclusion is clear, the USAF wants hypersonics ASAP.

Offline bring_it_on

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1719
  • I really should change my personal text
Re: AGM-183A ARRW
« Reply #10 on: August 12, 2018, 05:27:22 pm »
Quote
The size is the million dollar question. Lockheed has two hypersonic missile questions, are they both boost glide? Is one boost-glide and the other scramjet? If they're both boost glide, are they tactical / strategic sized? The tactical goes to Lockheed Alabama and the strategic to Lockheed space systems?

Lockheed is working on multiple programs. Among them:

- Tactical Boost Glide (TBG) for DARPA
- ARRW for the US Air Force
- Hypersonic Air Breathing Weapons Concept (HAWC) for DARPA

Out of these HAWC is going to demonstrate scramjet propulsion. It appears that ARRW is going to leverage DARPA's TBG while HCSW will leverage the HAWC.
« Last Edit: August 13, 2018, 03:15:20 am by bring_it_on »
Old radar types never die; they just phased array - Unknown

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8491
Re: AGM-183A ARRW
« Reply #11 on: August 14, 2018, 06:08:49 pm »
https://www.military.com/defensetech/2018/08/13/air-force-doubles-down-hypersonic-weapons-development-2nd-contract.html

Quote
The Air Force first awarded Lockheed Martin a contract in April to develop a prototype hypersonic cruise missile, the Hypersonic Conventional Strike Weapon (HCSW). That project could cost as much as $928 million over the course of its lifetime.

"The ARRW effort is 'pushing the art-of-the-possible' by leveraging the technical base established by the Air Force/[Defense Advanced Research Projects Agency] partnership," the release said. "The HCSW effort is using mature technologies that have not been integrated for an air-launched delivery system."

The Air Force said the latest award remains an undefinitized contract to allow Lockheed to begin work "before reaching a final settlement on contract terms and conditions." The final price and negotiated terms will be met within 180 days of the award, it said.

The second contract award comes after Pentagon officials said in recent months they fear the U.S. may be lagging behind in hypersonics, while rivals Russia and China have created national programs of record and reported recent advances.

"We have lost our technical advantage in hypersonics; we haven't lost the hypersonics fight," Vice Chairman of the Joint Chiefs Air Force Gen. Paul Selva told reporters in January. "China has made it a national program, so China's willing to spend tens to up to hundreds of billions to solve the problem of hypersonic flight, hypersonic target designation, and then ultimately engagement."
Only program missing is Global Strike missile based on the Omega launch system
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10936
Re: AGM-183A ARRW
« Reply #12 on: August 14, 2018, 07:04:28 pm »
Omega launch system?  ???
"DARPA Hard"  It ain't what it use to be.

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8491
Re: AGM-183A ARRW
« Reply #13 on: August 14, 2018, 10:24:54 pm »
https://www.space.com/40331-orbital-atk-omega-next-generation-launch-vehicle.html

Quote
COLORADO SPRINGS, Colo. — Orbital ATK's next rocket will be its biggest one yet, and the company has picked a fitting name for the new booster: OmegA.

OmegaA, formerly known as the Next Generation Launch Vehicle, is Orbital ATK's candidate booster to launch intermediate- and heavy-class military satellites for the U.S. Air Force's Evolved Expendable Launch Vehicle (EELV) program. The rocket will compete with United Launch Alliance, Boeing and Blue Origin for military launch contracts under the Air Force's Launch Services Agreement.
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot

Offline Orionblamblam

  • Secret Projects Guru
  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 7075
    • Aerospace Projects Review
Re: AGM-183A ARRW
« Reply #14 on: August 15, 2018, 12:31:43 am »
Aerospace Projects Review


And so the endless circle of life comes to an end, meaningless and grim. Why did they live, and why did they die? No reason. Two hundred million years of evolution snuffed out, for in the end Nature is horrific and teaches us nothing