On 29May2022 0409, Jim Vassilakos - jim.vassilakos at gmail.com (via tml list) wrote: > Suppose you're serving on an Imperial Navy Cruiser, and there's a call to > battlestations. What exactly happens? > > In specific, I'm thinking that everyone would get into some sort of > pressure suit, right? Or would people still be walking around essentially > at the mercy of possible atmospheric decompression? > > Also, to minimize potential damage and disruption, would the ship itself > preemptively decompress, sucking air back into the life support system (if > that's even possible) or venting it to space? Why? So things won't go > flying around the moment the full gets breached. Not sure, but if this is > overkill. I realize that in Star Trek and Star Wars, this doesn't happen, > but in a hard-SF setting, one without force fields (although one could > argue that gravitics constitutes a sort of forcefield), wouldn't combatants > be better off preemptively decompressing? IMTU spacers wear coveralls with lots of pockets, that are loose enough to be easy to move in but not too baggy (don't want them catching on stuff when you're working in a tight spot in the engines, etc.) or a equivalent top and trousers, plus light footwear (or heavier boots if working in engineering, moving cargo, etc.). The main feature of these clothes is that they're easy to get out of in a hurry, so swapping to a vacc suit when general quarters is sounded is easy. The standard suit for civilians and most naval personnel is a light compression suit that's good for dealing with vacuum and a certain degree of high and low temperature contact but which isn't intended for spacewalks or prolonged exposure to direct sunlight, etc. the on board air supply is also of only a hour or so's duration - when at their station the spacers will plug into the ship's air system if pressure is lost (hopefully the air system is still functioning). Those spacers in damage control parties or who might be expected to need t spacewalk will wear heavier suits and carry more air. Ships will not generally de-pressurise before combat IMTU. It's inconvenient, makes wearing the suits and being at general quarters that much more uncomfortable and fatiguing, and invites accidents. Also, a lot of the ship is designed with assumption it's got air flowing through it - it's the primary coolant for a heck of a lot of the incidental electronics and machinery, for example. While in theory everything that matters should be vacuum rated, in practice after any loss of pressure there's going to be a lot of diagnostic, maintenance, and repair work to be done. Most navies and pretty much all civilians don't consider the extra potential damage from shock and blast from leaving the air in to be enough of a threat to justify the downsides. Besides, if all the PCs are in suits when the ship is holed there's much less drama and excitement, and that's what we're playing this game for, right? -- Rupert Boleyn <xxxxxx@gmail.com>
