In article .com,
"Tom Cuddihy" wrote:

Even if they do get to orbit, they will still be bound by rules of
profitability. The question is--even if they can pay for the
development itself, will it be economincally feasible to pay for the
extremely large infrastructure (groundship, dark sky station, and
airship)--I mean upkeep, repair, etc--based on a launch method that
apparently takes weeks to get to orbit.

It takes about five days, not "weeks."

This launch method, on the other hand, will be reusable--assuming the
craft can survive more than one trip. But it will still have very
restrictive weight limits, and I'm not sure the profitability is any
better than a TSTO RLV.

Yes, that's certainly a fair question.

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