I believe that the purpose of the starter contactor in
Bob Nuckol's drawings is to isolate the starter cable
from the battery.
If the starter cable were connected directly to the
battery and it shorted to ground there would be no way
to disconnect it.
Jim
--- Original Message ---
From: "Al Gietzen" <alventures@email.msn.com>
To: "Rotary motors in aircraft"
<flyrotary@lancaironline.net>
Subject: [FlyRotary] Starter solenoid

>
>
>What's the steady-state current draw of the starter
solenoid?  
>
>
>
>Why, in all of Bob Nuckol's wiring diagrams, is there
a starter
>contactor switching the heavy current to the
starter?  There is already
>a contactor in the solenoid.  What am I missing here?
>
>
>
>Al Gietzen
>