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So I'm planning an add-on for a large interplanetary spacecraft inspired by some of the soviet concepts for nuclear-electric mars spacecraft, but with sort of a more near-future rather than historical bent. In keeping with the vein of the source material, I have decided to use xenon hall...

Every so often, somebody starts/proposes/requests an add-on for integrating the functions and resources of docked stacks. These get far-reaching and over-extended and tend to fizzle for a variety of reasons. We're all busy people. But what really is the essential utility of an add-on like that...

So as any deep space pilot knows, and knows doubly if they're going to the outer planets, every last kilogram of propellant counts. With a preponderance of add-ons geared for long transfers, I'm surprised that so few of them are equipped with heat shields, aeroshells, ballutes, or similar...

Have seen 404s, server configs and hosting company stuff over the past few hours. Anyone know anything? Those DDoSers back at it again?

Discussions of "realistic" delta-gliders have tended to focus on what would be required to make a functioning SSTO spaceplane with similar capabilities, size and performance characteristics. These have been fruitless for a variety of reasons. But there is another way to make a "realistic"...

Not sure if a cvel-stage would actually be the best way or even a possible way to realize this but basically the idea is for a completely minimal vessel that is nothing more than a mass and a docking port as a hacky way of converting any old upper-stage for use as a generic dockable booster. If...

Given the fairly sizable amount of FGB-type meshes for Mir/Iss type station blocks, it would seem like some enterprising sort sitting on some of them could taco up a TKS logistics spacecraft fairly rapidly. It doesn't hurt that there are several extant, quality Protons to choose from for...

Good bananas Orbiter-Forum! I'd been lurk-olating and was considering throwing two bits into the Mercury/Gemini to the point of getting an account. But my two bits really would probably end up with zero or near-zero taken from project gemini so... As the title indic-izes, with all this renewed...