Rowland
I recently investigated using a Vertical Power system as the relay and speed
controller
for my elevator trim servo with stick top switches, with some advice
---From Tony Kay. In brief, Tony spoke to Andy Draper who confirmed that, due
to
the critical nature of the trim on an all-moving tailplane such as the Europa,
the LAA wouldn't sanction any electronic controller/device in the trim circuit
between the trim switch and the servo, in case of failure. I believe the RAC
relay deck is ok because it switches the power but doesn't try to electronically
control it.
On that basis, would this unit be permitted - I'm not sure where it goes in the
circuit?
Richard CC
> Its primary function is to allow for the trim servo speed to be adjusted - I
understand some folk have found the natural speed of the servo too high for
their
liking - but as bonus you can add as many extra trim switches as you want.
(eg one on the panel and one on each stick-top.) I have fitted one to my trim
circuit and in my tests so far (not yet flying) I find it is entirely
satisfactory.
In the picture of my panel (I posted a link to it yesterday) the small
hole at bottom left adjacent to the trim switch is for screwdriver adjustment
of the trim speed.
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