In a recent post about the g-forces I was out by a factor of ten.
 
The formula should be:
 
...The force at the drum (or RCF: relative centrifugal force) is
proportional to the radius of the drum (or baskets) and the
rotational speed squared.  The formula is RCF equals the
radius in millimetres times the square of the rotational speed in
revolutions per minute, both divided by 900,000 (not 90,000).
 
But my example was correct:
 
For example, a spinner (or extractor basket) of radius 600 mm
rotating at 200 rpm will exert of force of 27 g or 27 time the force
of gravity (26.67 actually).
 
Thanks to Peter Drury of Australia for pointing that out.  Apologies
to everyone whose combs were turned to pulp.
 
Andrew