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Message: <blockquote data-quote="Thomas Bowman" data-source="post: 7417892" data-attributes="member: 6925649">That's great where distance matters, in my campaign, distance doesn't matter so much. You can move the ends of a wormhole around, but the internal distance through each wormhole remains the same, so I decided that a hex format makes the map more compact, and I can add more star systems to it. The internal distance through each wormhole is by the way, 18,289,152 kilometers and if a starship accelerated at half that distance turned around and decelerated the other half, it would take 1 day, which by the way, takes 1 minute for light or electromagnetic radiation to travel through. It takes on average about 7 hours for a radio transmission originating from a habitable planet in a system to get to a stargate, plus 1 minute for every wormhole the transmission gets sent though, and then another 7 hours to travel from that stargate to the receiving habitable would in the system, assuming a sun like single star in both cases. News travels much more quickly in this setting that in standard traveler with Jump drives. For a starship accelerating at a constant 1 g with a mid point turnaround, it takes 20 days to travel 50 AU which is the standard distance of a stargate with wormholes, assuming a midpoint turnaround and slow down before entering the wormhole, as its not safe to enter a wormhole at speed as there is likely too much traffic inside at any given moment, and you only have 500 meters of width to the wormhole throat. So we're talking about 40 days plus 1 day for each wormhole traveled through to go from mainworld to mainworld. Slower than using a standard jump drive for travel, but faster for communication using that same jump drive. One can get there faster if they are willing to accelerate faster than 1-g and go into low berths so that acceleration is not felt. Starships tend to be tail landers, rather than winged affairs or wedge-shaped vehicles that land on their bellies rather than their tails, though their are analogs for each standard Traveller Starship.Obviously a starship that traveled 50 AU from mainworld to Stargate needs to refuel at the station over there, 20 days acceleration and deceleration, uses about two thirds of the fuel for a standard operating duration of four weeks. The fuel gets mined from nearby comets and gas giants, fusion fuel, Helium-3 and deuterium gets mined from gas giants almost exclusively fortunately fusion fuel is not as bulky as reaction mass. One can tank up with twice the standard amount of fusion fuel and be able to cruise for 60 days assuming one can refuel their reaction mass (hydrogen) at mid point. So there is brisk business in fuel sales at the starport adjacent to the stargate, and the spaceports at each planet. Ships are constructed mostly at spaceports on planets or orbiting planets because that is where much of the workforce lives. spaceships can be repaired at starports, the repair bill us usually more expensive at a starport than at a spaceport, and few starships are ever constructed at a starport, because you don't have much of a workforce that lives there, so wages are high.The planets and who lives there are much the same as you described in your PDF, the histories are somewhat different. Unlike your timeline, the Jump Drive was never invented, and artificial gravity involving the generation of artificial gravity fields was never a thing, everything else is the same however, but this does means that large space stations rotate to produce gravity. Only ships built with interstellar technology can accelerate constantly for up to four weeks, that would be tech level 10. At tech level 9, interplanetary era, spaceships accelerate up to a cruise velocity  and take months to years to reach another destination within a star system, these are powered by solar energy, atomic fission or fusion, but their reaction based maneuver drives aren't as good. Freighters that move bulk goods where travel time is not as important, don't accelerate constantly at 1-g either, some of those freighters deliver fuel, mined from gas giants, to the fuel stations at starports and planet based spaceports.</blockquote>

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