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----- Original Message ----- From: <Lehanover@aol.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, January 18, 2005 1:49 AM
Subject: [FlyRotary] Re: New discovery...
In a message dated 1/17/2005 10:23:29 PM Central Standard Time,
atlasyts@bellsouth.net writes:
<< The starter pulls down all the
available juice and the computer takes a break. Any comments?
Buly >>
A small backup battery like a garden tractor 530 Amp Hour is great for a race
car.
You can crank from one battery and run the electronics from the backup. just
for starting. Should anything happen to the battery in the air, you canswitch
to the backup to get home.
Starters can draw over 100 amps. Have the battery load tested at a big parts
store.
With attention to voltage at different loads.
And have an electronics tech put an amp probe on the starter wire to see how
much its pulling. Could need a starter, or just some oil on the bushings.
The disadvantage of electronic everything is what you just saw.
Lynn E. Hanover
Homepage: http://www.flyrotary.com/
Archive: http://lancaironline.net/lists/flyrotary/List.html
The statement "starters can draw over 100 amps" might just be why I have blown two 80 amp fuses on my SQ2000. I have two wires going from the positive terminal on my battery....one direct to the starter, and the other goes to the alternator, with the 80 amp fuse in-line on that wire. The fuse isn't acutally in the wire going to the starter, but both the starter wire and the alternator wire go to the + terminal of the battery. Don't know why the alternator fuse would be affected from starting, except that there might be some kind of electrical gremlin that goes down the alternator wire and cuts the fuse wire while I am cranking the starter. Happens too fast for me to catch him. Paul Conner
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