On Fri, Feb 12, 2016 at 4:11 PM, Bruce  Johnson
<xxxxxx@pharmacy.arizona.edu> wrote:
>
>> On Feb 12, 2016, at 8:21 AM, Jeffrey Schwartz <xxxxxx@gmail.com> wrote:
>>
>> T5 explicitly rules out the H2 Shield idea.
>>
>
> Reason enough for me to view T5 with a jaundiced eye personally, because it’s sticking to a paradigm that’s logically broken, because [Topol] Traditiooooon! Tradition! [/Topol]
>
>> Says that running the power plant in Jump Charge mode takes it to
>> several orders of magnitude lower efficency, and lots of LH2 are
>> vented for cooling.
>
> The problem is that make no goddamn sense at all.
>
> Running a fusion plant at ‘several orders of magnitude lower efficiency’ PRODUCES LESS ENERGY not more.
>
> This isn’t like turning on an afterburner on a jet. (which I’m pretty certain is the kind of thing Marc’s trying to emulate here)
>
> That doesn’t reduce the efficiency of a jet engine, it merely increases the thrust by turning the tailpipe into a crude, jet-fuel rocket on top of the existing jet engine.
>

Ya know, the Black Globe rules give the energy input needed to open a jump...

One of the things I kinda like is T5 addresses the "magic heat
dissipation" issue as well - by making the reactor runs in low
efficiency mode compared to groundside systems with real heat sinks.
There's a lot of wording that strongly implies a good amount of the
fuel is used as coolant, and vented off to carry away heat.

Then when you kick the reactor to "more power!" to charge the jump
drives, then even more LH2 is vented to dump heat.

Since antimatter powered ships, and collector powered ships are in
there, and there's jump grid vs jump bubble, this explanation makes a
lot more sense to me than the "Hydrogen Balloon" concept.