Quote:
Originally Posted by gordner
...And testing new fuels is hardly a bad sign considering the success of the first fuel used, obviously they are anticipating increased performance to a degree that warrants the change. ....
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Yeah, it is likely a bad sign.
What it says to me (pure speculation) is that they quickly found that they don't have enough energy for that craft (SS
2) to make spec. ...or over-heats, or costs too much, or...
Or maybe, you think they are simply looking for a
greener refinement? ...save the planet and all that rot that guys like Branson are
for 
Because, space(ish) joy-rides for Billionaires ...
meh, I really haven't been following this much. The tech simply doesn't much impress me. seems gimmicky.