Now that I see the picture I remember reading about it. Looking at old bookmarks on my Explorer browser I see that I saved it... the nasa.gov page is now 404.
There's been a few dreamwork companies over the last 20 something years offering such rc models & all were fishing for funding... invest now & be one of the first to receive in 3-5yrs.
CCM (they're a diecast construction model company, out of Oregon) tried to offer an older style flat track D8 or maybe D9, I can't remember it's letter designation, in I think 1:8th scale... I don't think they even finished the prototype. They used to have a special tab on their website, I don't see it there anymore.
https://ccmodels.com/
Back in the early 2000's when I had a forum on Yahoo Groups, some dude from California claiming to be a professional modeler was soliciting on the forum for investors for a 1:6th Cat tractor (no blade, maybe a rear mount winch) for like $4500 & 4-5yr build time, he wanted 75% for a down payment... yeah right.
There is this Italian built D11R currently being offered in radio control, it's beautiful and scaled down to the last detail... the last price I heard on it yrs ago was $25 000 usd. There's a thread on this forum
https://rctruckandconstruction.com/s...?t=310&page=11 though all the pictures seem to be gone.
The link to their website doesn't work anymore, maybe they built a new website,,, but here's a youtube video showing it.
https://www.youtube.com/watch?v=U7E7zryZTJk