A RPC does not need much tweaking and the very best tweaking does not
change much from no load to full load. So I disagree with you when
you say if you tweak for no load, you get efficency losses at various
loads.

Dan


Old Nick wrote in message

But after all the tweaking, the RPC _still_ appears to suit a certain
load; not given the cost, or the size of idler making it easier, but
because if you tweak for no load, then use various loads, you get
efficiency losses. Again, this is not a cost issue, so much as limited
power supply and making that work. So I realise it takes a lot of
power costs to _pay_ for the thousand dollars a motor gen will cost me
to set up.



************************************************** ***
I have decided that I should not be offended by
anybody's behaviour but my own......the theory's
good, anyway.