On Mon, Oct 12, 2020 at 10:44 Phil Pugliese - philpugliese at yahoo.com (via tml list) <xxxxxx@simplelists.com> wrote:
On Sunday, October 11, 2020, 10:29:01 AM MST, Thomas RUX <xxxxxx@comcast.net> wrote:

Do you allow the use of the gases skimmed from a gas giant as unrefined jump fuel?

Do you allow the use of melting icy comets down as unrefined jump fuel?

Unrefined jump fuel has consequences per the Traveller rules. I recall, but as usual, I can not find the text that indicates how long it takes to convert the unrefined fuel in water into refined fuel.

Tom Rux

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You raise a good point/s.

So, exactly just what is "unrefined fuel"?
(meaning fuel that can be fed directly into a J-drive system)
IMTU, I actually went a bit deeper when looking at this problem, and just added a new fuel grade “Raw Fuel”, which is any hydrogen-rich liquid. Using it does ding up your systems quite a bit though. Unrefined is pure LHyd, and is the output of shipboard fuel purifiers. Refined is basically the premium gas of jump drives, with specific elements in suspension to aid in jump drive energization (it’s fuzzily-defined handwavium).