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  #1  
Old 08-24-2013, 12:58 PM
bluebrear bluebrear is offline
 
Join Date: Feb 2013
Location: Bethel
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Default Alternator Question
Would like some suggestions for a brand and model of auto alternator to install on my RV9A Lycoming O-320 B1A. I think 60 amps is fine. Thanks Gary
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  #2  
Old 08-24-2013, 02:26 PM
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Danny King Danny King is offline
 
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Location: Southlake, Texas
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Default Alternator
B&C 40 amp alternator :
http://www.bandc.biz/alternator40amp...mebuilt-1.aspx

LR3C-14
Alternator Controller/Regulator, 14v
http://www.bandc.biz/alternatorcontr...homebuilt.aspx

This is all you will need, and it will protect your expensive avionics from over voltage spikes.
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  #3  
Old 08-24-2013, 02:41 PM
BillL BillL is offline
 
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Location: Central IL
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Danny has offered links for an alternator with a voltage limiter, and an external field switch option to shut it off in flight. I agree with Danny, but here are some other references if you want more.

The Autozone, etc alternators don't have either, but accordingly cost less.

For a panel cost of a nice upscale SUV, I chose the path with protection, YMMV.

http://www.vansairforce.com/communit...ead.php?t=5841

http://www.aeroelectric.com/articles...rnator_Mod.pdf

Educational fun . . .

Oh - BTW - use google and type "site:vansairforce.com alternator +denso +autozone" and you will find much more.
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  #4  
Old 08-24-2013, 03:31 PM
rapid_ascent rapid_ascent is offline
 
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Bluebrear,

If you PM me your email address I'll send you a document that I put together of some of the options. The document is primarily my notes that I made after doing a bunch of web browsing. It contains my opinions of the best solutions, so that those opinions as just that.

I'm not a alternator expert, but after my search I know a lot more. Use at your own risk, do not try this at home, and if you should fail in your operation the secretary will disavow all knowledge of this operation as they used to say.
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  #5  
Old 08-24-2013, 04:34 PM
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RV8Squaz RV8Squaz is offline
 
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I second B&C. Expensive yes. But you get what you pay for. I am never concerned about an alternator failure in my airplane. I am sure it has happened, but I have never heard of a B&C equipment failure.

Jerry Esquenazi
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  #6  
Old 08-24-2013, 06:15 PM
deek deek is offline
 
Join Date: Mar 2013
Location: Flathead Lake Montana - 8S1
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Quote:
Originally Posted by Danny King View Post
B&C 40 amp alternator

B&C LR3C-14 Alternator Controller/Regulator, 14v

This is all you will need, and it will protect your expensive avionics from over voltage spikes.
^^^ This is an excellent suggestion. I've had B&C alternators on 3 homebuilts with over 4,600 hours of trouble free electrical systems. I've had two LR-2 and one LR-3 regulators, ditto on the service life. Great service from Bill too
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  #7  
Old 08-25-2013, 05:59 PM
bluebrear bluebrear is offline
 
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Location: Bethel
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Default Alternator
Thanks everyone for the links and the experienced information.

Gary RV9A working on firewall forward.
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