The catpack must catalyze the fuel. The wetted area must go up to match fuel
rate. Wetted area is a surface. The fuel exists as a volume.
I don't think anyone has scaled up a silver screen catpak enough to really
know how large they can be built. I think the larger they get the harder they will
be to fabricate, that is harder out of proportion to size. What is the largest
built to date? At what diameter of screen will you need to support it in the
middle?
As for weight if you compare multi catpac single nozzle to multiple engines of
the same thrust which would be lighter?
I changed the subject to match the original subject.
> Back to the original post - there is really no benefit to multiple
> catpack chambers - the area of the catpack is fixed somewhat by
> the thrust needed and catpack life desired. Anything with multiple
> catpack chambers would just add to the weight of the engine.
>
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........ Alex Fraser N3DER .........
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