I have a yasu rotater, I got from D X Enginering for my hex beam.  It 
says that the raiting is about 5 which is good, it can be used on a 
try pod on the roof.  I think the number on the roter was an 800.  I 
will have someone look on the invoice.  The glass turns a quarter of 
a turn and then comes off.  There is a hand that moves, it is not 
sensitive as braille clocks and watches.  Also, if you turn it south 
counter clockwise, when you turn it clockwise to the south, you can 
go 90 degrees more or directly west.  I have never seen that on a 
roter before.
I gues I am getting old, the wind load is 5, that was what I meant, 
and it is rated at 100 MPH.
Mike Barnard
KD2CDU