Radial nuclear engines?

[stryth]

I'm trying to find an old mod, a set of three radially mounted nuclear engines. They had a metallic grey base and an orange colored tank in the middle, with a warning label on all of them about causing death.

https://www.dropbox.com/s/pug6quod6jwgh2n/rne-ex.png?dl=0 this a rough drawing of the smaller ones from memory.

The two smaller ones had their flames coming from that slit, while the big one had a nozzle and all three seem to have unique models. I can't seem to find them any more, if anyone knows were I can find on old copy of these i'd really love to know. I want to try and update their cfg's to work in 1.0.4 for my game. They just fit my ship designs so much better.