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RE: Sail numbers

>From Brian

>5) Thermal load is a big problem.  750 KW on .05 Kg is a big worry.
>I have not calculated the limiting temperature yet, but I am hopeful that
>titanium alloy will stand up to the load.  To do this model, I will use
>heat capacity and blackbody radiation equation.  I do not have time right
>now, but expect it soon.

>Hmmm, this sounds troublesome, maybe we need to decrease the density of 
>If you've calculated it could you add some formulas so that I can check it?

If you decrease the density of the beam, you must increase the width of the 
sail to compensate for lost thrust.  Or you can just lower the weight of 
your ship.  None of these options are apealing.