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THOR-ER (Solid fuel ramjet.)

sferrin

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DOD Announces New Allied Prototyping Initiative Effort with Norway to Continue Partnership in Advancing Solid Fuel Ramjet Technologies

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"The U.S. Department of Defense and the Norwegian Ministry of Defence announced their intent to continue a bilateral effort to explore advanced solid fuel ramjet technologies. The Tactical High-speed Offensive Ramjet for Extended Range, or THOR-ER, is an Allied Prototyping Initiative (API) effort under the Directorate for Advanced Capabilities within the Office of the Under Secretary of Defense for Research and Engineering.

The THOR-ER effort aims to cooperatively develop and integrate advancements in solid fuel ramjet technologies into full-size prototypes that are affordable, attain high-speeds, and achieve extended range, culminating in flight demonstrations in operationally relevant conditions. The effort will also consider potential U.S. and Norwegian co-production opportunities. "

 

Bhurki

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Can't find any info on this other than a bunch of articles all from the same date as the upper one. Its like this thing suddenly popped out of the ground. What's the deal? (range, speed, dimensions, anything)
 

TomS

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Can't find any info on this other than a bunch of articles all from the same date as the upper one. Its like this thing suddenly popped out of the ground. What's the deal? (range, speed, dimensions, anything)

The model shown sure looks like an ESSM fuselage and front end with an inlet grafted into it. But I wouldn't count on that being entirely representative of anything. This is just a prototyping exercise, so they might well not be looking to make anything that would be fully representative of an operational weapon.
 

trose213

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Not sure if this is related. It's for a solid fuel ramjet.

 

mkellytx

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Not sure if this is related. It's for a solid fuel ramjet.


Good stuff, always glad to see the alma mater doing good things
 

Lc89

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Not sure if this is related. It's for a solid fuel ramjet.


Good stuff, always glad to see the alma mater doing good things
Isn't it about this project here? Or no?
 
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mkellytx

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Not sure if this is related. It's for a solid fuel ramjet.


Good stuff, always glad to see the alma mater doing good things
Isn't it about this project here? Or no?

Your guess is as good as mine, I left the defense industry a decade ago and haven't followed my Alma Mater's research trends with any detail in a while.
 

marauder2048

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Not sure if this is related. It's for a solid fuel ramjet.


Good stuff, always glad to see the alma mater doing good things
Isn't it about this project here? Or no?

Your guess is as good as mine, I left the defense industry a decade ago and haven't followed my Alma Mater's research trends with any detail in a while.
Purdon't.
 

Lc89

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From what I understand reading the article it seems that the THOR ER is not a real missile, but a propulsion system for missiles. So could it be put on existing missiles, which will get faster?
 

TomS

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From what I understand reading the article it seems that the THOR ER is not a real missile, but a propulsion system for missiles. So could it be put on existing missiles, which will get faster?

The most likely outcome that they could incorporate the technology into new missiles going forward, but I supposed it could apply to new versions some existing missiles. The mockup in the first post looks like an ESSM derivative, for example. And air-breathing HARM/AARGM is still interesting, albeit never actually funded, despite several credible candidates. Whatever missile you might apply this too would have to already be supersonic, which limits the options. You can't just bolt it on to a Tomahawk and get it to go Mach 3.
 
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bring_it_on

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The ESSM concept is/was pretty fascinating. If they can retain the quad packing ability then that is going to be a pretty decent capability that could extend ranges considerably at a lower cost than say having to use an SM-2. There is no ESSM Blk III yet in the works so perhaps a propulsion upgrade could be a candidate for the next cycle.
 

Lc89

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Then the NSM - which is a Norwegian-made missile - would also be an excellent candidate.
 

TomS

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Then the NSM - which is a Norwegian-made missile - would also be an excellent candidate.

But back to my point above, NSM is solidly subsonic (and uses IR homing). You can't just slap a ramjet on it and expect it to work at all.
 

TomS

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Maybe they could do it with NGLAW.

Maybe, if anyone had a clue about what they want for NGLAW. The thing is, it's meant to replace Tomahawk, which puts a couple of hard limits in terms of range and size. Going supersonic with a range of more than 1000 miles within the envelope of a Mk41 canister is asking a lot, even with a fancy new engine.
 

bring_it_on

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Then the NSM - which is a Norwegian-made missile - would also be an excellent candidate.

But back to my point above, NSM is solidly subsonic (and uses IR homing). You can't just slap a ramjet on it and expect it to work at all.

I'm sure that Norway is probably thinking ahead into what comes after the NSM in the 2030's and beyond. Since the NSM is going to be the OTH weapon of choice for the SSC fleet with the USN, they too probably have some interest in eventually getting something with longer range, faster speed and higher survivability down the road.
 

trose213

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Then the NSM - which is a Norwegian-made missile - would also be an excellent candidate.

But back to my point above, NSM is solidly subsonic (and uses IR homing). You can't just slap a ramjet on it and expect it to work at all.

I'm sure that Norway is probably thinking ahead into what comes after the NSM in the 2030's and beyond. Since the NSM is going to be the OTH weapon of choice for the SSC fleet with the USN, they too probably have some interest in eventually getting something with longer range, faster speed and higher survivability down the road.
I would imagine that would be an entirely new missile.
 

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In this article about the collaboration between Germany and Norway on the Norwegian Navy's next class of submarines, hints about a future naval attack missile. It could be related to the THOR ER program.
 
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TomS

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In this article about the collaboration between Germany and Norway on the Norwegian Navy's next class of submarines, hints about a future naval attack missile. It could be related to the THOR ER program.

In 2019, this initiative was talking about enhanced versions of NSM. I suspect that Future Naval Strike Missile is simply the upgraded NSM with things like automatic target recognition for land targets.


Given that THOR-ER is a US-Norwegian initiative, I would not expect Germany to become a partner in it without the US being mentioned as well.
 

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