Raytheon Unveils New Air-to-Air Missile [Peregrine]

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Dragon029

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Unread post21 Apr 2020, 16:46

wrightwing wrote:
Dragon029 wrote:Maybe I'm wrong, but it was my understanding that LREW was an R&D program that lead into JATM; LREW funding finished up in 2017, the same year that JATM then went on the books.

LREW is a Raytheon program. JATM/AIM-260 is Lockheed Martin. To my knowledge, LREW development hasn't ended.


As bring_it_on said, LREW was a USAF program. If LREW development hasn't ended, then I haven't seen any record of its funding continuing past 2017.
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Unread post22 Apr 2020, 02:24

I wonder if they couldn't develop something resembling SDB dimensions where for long ranges it flies to the mesosphere (i.e. 120,000+ feet) initially with swept wings then slowly extends wings as speeds decrease to maximize post-boost glide. It could discard the wings during a terminal dive. The same missile could obviously be an offensive ground attack weapon, too.
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Unread post22 Apr 2020, 03:27

^Main problem I can see is that it could be prohibitively slow. One of the issues with getting kills over extreme distances is the difficulty associated with maintaining a steady flow of quality target data to the missile until it becomes autonomous in terminal phase. Everything from target RCS, to terrain masking to jamming and defensive maneuvering can disrupt the kill chain while the weapon is in flight. Ideally you want a very quick weapon to reduce the target's response time as much as possible, and minimise the opportunity for any other factors to interfere with the engagement.
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Unread post22 Apr 2020, 12:41

What kind of speeds are qualified as fast enough here?

I'm just thinking they will already have six AIM-120 carriage coming, you'd need something that gets beyond that, maybe up to double the number, to make any smaller missile worthwhile. Otherwise six has to work. Make the most of that space for six even if you have to grow an inch or two in diameter. Whichever route chosen, stick to keeping it all internalized.

edit: actually it looks like LREW is pretty much the design to do just that, but with the addition of a booster option. It looks like they are aiming for 12 LREW internally for the F-22A which is quite the feat. Too bad there isn't a JDRADM option to strap a booster the size of JDAM to give it the 'long shot'.

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Unread post22 Apr 2020, 16:34

If I am not mistaken, the F-22 main weapons bay launchers are rapid action ejectors, pushing the ordinance out of the bay. Can you keep one of the tandem mounted bombs / missiles on the launcher while ejecting the other? I would think the inertia loads on the launcher would be pretty high for the retained ordinance.
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Unread post22 Apr 2020, 16:52

f119doctor wrote:If I am not mistaken, the F-22 main weapons bay launchers are rapid action ejectors, pushing the ordinance out of the bay. Can you keep one of the tandem mounted bombs / missiles on the launcher while ejecting the other? I would think the inertia loads on the launcher would be pretty high for the retained ordinance.


It looks like it currently is two trapezes per missile. It should be a matter of modding the software (and maybe a hardware mod if there is a physical interconnect) to only do one at a time.
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Unread post22 Apr 2020, 20:18

The F-22 uses one LAU-142/A per missile.
Tandem missiles would require a new launcher.

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Unread post23 Apr 2020, 00:38

madrat wrote:I wonder if they couldn't develop something resembling SDB dimensions where for long ranges it flies to the mesosphere (i.e. 120,000+ feet) initially with swept wings then slowly extends wings as speeds decrease to maximize post-boost glide. It could discard the wings during a terminal dive. The same missile could obviously be an offensive ground attack weapon, too.


The higher one goes, the less air there is. No air = how useful are wings?

As to 6 ft SDB...6ft peregrines...
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Unread post23 Apr 2020, 00:50

Oh! It was the photoshop job. Sorry about that.
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Unread post23 Apr 2020, 21:36

weasel1962 wrote:
madrat wrote:I wonder if they couldn't develop something resembling SDB dimensions where for long ranges it flies to the mesosphere (i.e. 120,000+ feet) initially with swept wings then slowly extends wings as speeds decrease to maximize post-boost glide. It could discard the wings during a terminal dive. The same missile could obviously be an offensive ground attack weapon, too.


The higher one goes, the less air there is. No air = how useful are wings?

As to 6 ft SDB...6ft peregrines...



I took it that this weapon gets boosted along a ballistic trajectory to 120,000 ft and then deploys wings at say 65,000 ft.

Not the wildest proposed use of an SDB-like airframe.
Attachments
airship-sdb-drop.png
a539680.pdf
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WEAPONIZED STRATOSPHERIC AIRSHIPS FOR CLOSE AIR SUPPORT AND TIME-SENSITIVE-TARGET MISSIONS
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Unread post23 Apr 2020, 22:00

I would hope an object moving through air at 120,000 feet and at Mach 4 would find plenty of lift even with SDB's scissors wing mechanism. Maybe not enough air when it slows to Mach 1, but definitely at Mach 4.
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Unread post24 Apr 2020, 11:30

marauder2048 wrote:
weasel1962 wrote:
madrat wrote:I wonder if they couldn't develop something resembling SDB dimensions where for long ranges it flies to the mesosphere (i.e. 120,000+ feet) initially with swept wings then slowly extends wings as speeds decrease to maximize post-boost glide. It could discard the wings during a terminal dive. The same missile could obviously be an offensive ground attack weapon, too.


The higher one goes, the less air there is. No air = how useful are wings?

As to 6 ft SDB...6ft peregrines...



I took it that this weapon gets boosted along a ballistic trajectory to 120,000 ft and then deploys wings at say 65,000 ft.

Not the wildest proposed use of an SDB-like airframe.


How big would your blimp need to be to carry a useful number of SDBs to 125,000 feet? :shock:
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Unread post24 Apr 2020, 12:11

sferrin wrote:
marauder2048 wrote:
weasel1962 wrote:The higher one goes, the less air there is. No air = how useful are wings?

As to 6 ft SDB...6ft peregrines...


I took it that this weapon gets boosted along a ballistic trajectory to 120,000 ft and then deploys wings at say 65,000 ft.

Not the wildest proposed use of an SDB-like airframe.


How big would your blimp need to be to carry a useful number of SDBs to 125,000 feet? :shock:


That would be pretty impressive achievement given that unsuccessful LM HALE-D was supposed to go to 60,000ft or so. that was (IIRC) 73 meters long and final version was supposed to be able to lift about a ton or two.

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Unread post24 Apr 2020, 19:24

The author of the paper does model HAA (500 ft long)
4000 lbs payload @ 65,000 ft

And an airship variant of NASA's ultra long duration balloon (1000 ft long) which was modeled as
2000 lbs payload @ 125,000 ft.

The paper has mainly been my source for detailed sdb specs (max-g, battery life, thermals).
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Unread post22 Jul 2020, 07:06

Raytheon secured $375 million contract to develop miniature self-defense missile

Posted on July 22, 2020


Raytheon has emerged as the winner to develop a miniature self-defense missile to defend U.S. military aircraft from incoming missile attacks.

The Massachusetts headquartered company was given a $375 million contract by the Pengtaon on Jul. 21 for the research and development of a flight-test ready missile.

The Pentagon added that two bids were received, meaning Lockheed Martin did not get the contract.

Back in 2016, Raytheon had been given $14 million to work on the Miniature Self-Defense Munition (MSDM), a miniaturized weapon for “close-in platform self-defense and penetration into contested A2AD environment with little to no impact to payload capacity.”

http://alert5.com/2020/07/22/raytheon-s ... more-83293
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