Hello all,
First my apologies for taking so long before realizing that instead of fitting the fuel purification processing time into the refueling time I was adding the time needed to convert raw gas into refined fuel. Thank you pendragonman, even if it took awhile to get through my thick skull, for getting me on, I hope, stating what I am mean.
My definition of refueling having a full load of refined fuel to run the power plant, jump drive and/or maneuver drive with the least amount of DMs to increase the chance of a malfunction of the J-Drive, M-drive, and/or Power plant.
Adventure 5 TCS does provide HG2 with additions and clarification to that books rules, however TCS does not say anywhere that HG2 or Book 2 Starships rules are suspended. The rules on the use of unrefined fuel are explicitly written stating that the power plant, jump drive, or/and M-drive have an increased chance of malfunctioning. Since TCS doesn't implement the rules my feeling is that the 2 hours and 20 minutes or 140 minutes to fill the tanks includes operating the fuel purification plants.
A properly functioning fuel purification plant process 1,000 tons of fuel per HG2. Using the 140 minutes from Adventure 5 TCS and giving a little leeway, okay making my math easier, I'm thinking that the properly sized plant takes 100 minutes to process the raw gas to refined fuel, which is 10 tons of raw fuel per minute.
Of course using 6, 8, or 10 hours as the time needed alters the tons of fuel processed.
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Bearing in mind that we're taking the game as-is, and not trying to deal with such imponderables as whether the fusion plant's doing a proton-proton reaction or using deuterium and so on and so on, it looks fine to me. I suspect if we ever tried to tackle the imponderables, we'd have to completely rewrite the fuel purification plant rules.
A thousand tons in 140-ish minutes - calling it 100 minutes works since you're probably not scooping in the time you dive from space to the upper clouds nor in the time you lift from the atmosphere to orbit.
Could still apply the 6-hour bit; we'd just need to errata it into TCS, have it understood that a ship that tried to jump before the fuel needed had completed refinement was subject to the unrefined fuel jump DM. Only problem there is the purification plants are small enough and cheap enough that I'd be sorely tempted to throw a second one in to halve the time and allow a quick getaway - which is something the game rules don't really allow for. I personally think it's better to say it purifies the fuel as it comes aboard.