Alternator and battery

A forum in which to discuss topics that are not specific to a particular series of aircraft (ie. how to cut alclad)
Post Reply
Doakes
Class E
Posts: 69
Joined: Sat Nov 13, 2004 8:27 am
Location: Indiana

Alternator and battery

Post by Doakes »

I need help to determine what size of wire needed for the Starter?
and size for the alternator 70 Amp.and the battery?

I think 6 for the alternator. maybe 4 for the starter and 6 for the Battery.

but I do not know and I am having finding. But this group should already know? Thanks guys
Dave

:)

User avatar
bruceh
Class D
Posts: 393
Joined: Sun Apr 06, 2008 11:11 pm
Location: Ramona, CA
Contact:

Post by bruceh »

Use #2 for the battery to contactors, and to the starter. Use #6 for the main power lead to the busses and alternator if the length is greater than 4 feet, otherwise use #8. You will also need #2 wire or a braided strap to ground the engine to the firewall/airframe.
Bruce Hill
RV-9A N5771H flying over 1100 hours!
Build Log at http://www.overthehills.com/RV-9A-Project
Blog at https://flyingoverthehills.wordpress.com/
EAA Tech Counselor, A&P

Doakes
Class E
Posts: 69
Joined: Sat Nov 13, 2004 8:27 am
Location: Indiana

Post by Doakes »

Thanks Bruce for the help. It was much appreciated. I hope to be flying by the end of Oct. But as you know 95% done is 95 % to go. Seems awfully slow near the end.
Dave

Post Reply