REFLECTOR: Using the starter supply(+) wire as a charge wire

[Al Gietzen]

That is what you are suggesting, right?  I was going to do a variation on
that...use my heavy switch (direct - no relay) and locate the surpression
diode back on firewall ground bus maybe (if that's OK to have it so far from
the sw?).  Now I am thinking what you did with a 40amp relay makes more
sense and keeps any sparks from jumping switch to switch or elsewhere across
the other stuff in the overhead spaghetti area.   Is it OK to place the
diode anyplace in the run from o'head to starter motor?  

 

Thanks,

 

Your heavy duty switch should be fine.  Put the spike snubber at the starter
solenoid - a noisy spike traveling down the wires is not a good thing,
particularly in a composite airplane.

 

Al

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