From: martin.cibulski{at}t-online.de (Martin Cibulski)
To: 
Reply-To: martin.cibulski{at}t-online.de (Martin Cibulski)


I'm thinking about why rocker box or ground flexure must be a problem for
the pointing accuracy at all:

1.Rocker box flexure:
If the three azimut bearings are mounted at the bottom of the rocker box
and rotate with it the support points (seen from the rocker box) never
change and so the flexing of the rocker box never changes.

2.Ground board flexure:
I assume that the three bearings are equally spaced (120 degrees) and
loaded equally (balanced scope) and the ground board is supported at three
equally spaced points too: Then every azimute position should create
flexure of the ground board in a way that the three bearings go down by the
same amount. So no additional pointing error comes from the ground board.

Martin

--- BBBS/NT v4.00 MP