Solid-Fueled Expendable Turbojet Engines

[xylstra]

Does anyone have any information on research and experimentation into solid-fueled expendable turbojets?
[NB Please don't litter the post-wall with endless accounts of German coal fuelled ram-jets and pulse detonation engines, (yawn), yeah, yeah, yeah I already know about this. If you're dying to bang on about these then start another post. This post SPECIFICALLY concerns aviation gas turbines.

As an aside, America extensively researched coal-fired gas turbines for locomotive use but abandoned the project due to the un-solvable problem of premature turbine blade erosion caused by fly-ash particulates.

 

[publiusr]

Gnom was an expendable ramjet of sorts…

 

[xylstra]

Like I said: "turbojets" ONLY!

 

[xylstra]

I might now be able to answer my own post! Finally there has come to light a revelatory patent that perfectly describes the concept (clearly, someone else had already been thinking along those lines!)..... and who might that be? Well, none other than Williams (the patent assignee). Perfect propulsion powerplant for a submarine-launched quick-reaction cruise missile.
https://www.freepatentsonline.com/5010728.pdf