Electricity generation on the Moon

>
> In order to get a reasonable efficiency with a Sterling engine, it must be
> engineered to extremely high tolerances. This makes it near impossible for
> robotic production on the moon, in the beginning at least. Sterling engines are
> favoured for use in space, due to their high reliability. The abandoned NASA SDG
> project worked on a Brayton, gas turbine type cycle. I don't see how it will be
> possible to produce gas turbines on the moon. The tolerances have to be very
> high, and each blade must be grown from an individual crystal.
>

Quite so. The high precision parts will still be made on Earth.

On the Moon we need to look for opportunities to make big heavy crude
components.
A good candidate might be casings for the SD pressure vessel components,
tubing,
the reflectors and structural components.
These can be overdesigned and overengineered to compensate for lack of
precision.
The weight saving versus launching those components from Earth would be
considerable.

Shop online without a credit card
http://www.rocketcash.com