longg(at)pjm.com
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 Posted: Wed Nov 07, 2007 9:08 am Post subject: [Probable SPAM] Re: TRIM Disconnect Switch |
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Another good reason to go Vertical. I will be doing the same thing.
Remember the Ray Allen sticks operate on the principle of shorting out
the connection to move the trim, so a short represents a signal to move.
A dead short will also cause the servo to go nuts, so short prevention
is the best design goal.
A panic switch may be used to open the system completely. That could be
on the panel with a big red button rather than using a spot on the
stick. If the trim has already moved substantially before you hit the
panic button, you need to fight it to the ground to land. Inconvenient,
but not dangerous unless your load is imbalanced - pretty messy in the
wind too. Once on the ground put a nut/bolt through the gap to guarantee
it won't move on the way home.
Another option for TruTrak users is to buy the automatic trim controller
system which incorporates a fail-safe runaway feature.
Somebody should design a feature that returns the servo to neutral when
disconnect from power. Now there's an idea.
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