"The ramjet‑powered engine will double the range of the baseline PrSM, while maintaining compatibility with existing HIMARS and M270 launchers. Following extensive engine ground testing in both booster and ramjet modes, a flight test this year will demonstrate near-tactical range performance and a mature propulsion technology for future long-range... strike missions" ~ Lockheed Martin (🎥L3Harris)show more

Have you seen anything about the "GMLRS-XR"?

Might be a milestone for L3 but others have been doing exactly that for half a century. Just sayin'.

With modern SFRJs?

Also, L3Harris (through prior acquisition) has been producing the MARC-R-282 for the last 2.5 decades. This SFRJ for PrSM is obviously targeting a specific application and form factor.

I didn't consider Coyote because it's got a detachable booster rather than an integral.

Yes based on a requirement from the Navy. But the same team that built it also built a 7" and possibly a larger diameter IRR using the same baseline tech. The 7" flew back more than a decade or so ago.

Most likely back when it was Atlantic Research would be my guess.

By that time ARC had folded into Aerojet. See second image from Aerojet's financial disclosers.

Fitting a ramjet into the same pod envelope as the baseline PrSM is the real achievement here. No onboard oxidizer means more mass for range. I'd wager the booster-to-ramjet handoff is where the flight test risk sits.

Damn

So when will this be air launched?

When someone is willing to pay for such an air launched missile.

Oh sheeeee....

Such a short video with gigantic implications!

IRR?

At what cost?

It should be quite competitive with other means of getting a thousand km range for a similar payload using a similarly sized launcher.

GQM-163A Coyote was floated as a supersonic missile that uses similar technology.

No it is not a similar missile and it was not floated for any such requirements.

How would you describe the technology it uses?

@HLC_actual