nuclear-thermal rocket

reaction drive

Trimodal NTRs

Well, folks, it’s terrible sketch day again here at the Eldraeverse… So, this is my approximate representation of what exactly one of those “trimodal NTRs” I keep talking about as the engine of choice for shuttles, lighters, and suchlike planetarily-landing craft looks like in cross-section. It is anything but

Skyblaze-class HLV

Grounding

A far light in the sky, a faint rumble like distant thunder… soon drowned out as the klaxons screamed again over the hard-packed clay of Isahan Interplanetary. “Oddly Specific Impulse, nuclear heavy-lifter out of Vevery, grounding! All personnel, clear pad eight! I repeat: Oddly Specific Impulse, nuclear heavy-lifter out of