Railway signalling discussion

Testing UQ Signal Operation

Technical talk on signalling matters

Testing UQ Signal Operation

Unread postby RichardH » Tue Aug 13, 2013 2:04 pm

To test the operation of a UQ spectacle plate before an arm has been attached what weight would need to be bolted directly to the plate to simulate the arm – it would need to be quite a bit heavier than the actual arm of course because of its reduced moment.
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