nuckollsr(at)cox.net
Guest
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 Posted: Wed Mar 28, 2007 3:39 am Post subject: Rear Mounted Batteries in Z-14 |
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| Quote: | Comments/Questions: Bob,
First, thank you for all you do and have done to support the Experimental
Aircraft community over the years. I have had your materials and
reference your web site on a VERY frequent basis…great stuff!
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Thank you for the kind words . . .
| Quote: | I am now building an RV-10, and plan on using the Z-14 dual battery
configuration. I am pretty much decided on using two of the 600 amp
Odyssey batteries, mounted side by side in the standard rear tailcone
configuration.
From a configuration perspective, Is it acceptable to locate both battery
contactor relays near the rear mounted batteries?
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That's where they're supposed to go. Battery contactors and battery
busses are mounted adjacent to their respective batteries. Irrespective
of what kind of wire you use for other "fat wires" in the airplane,
consider the use of 4AWG, welding cable jumpers from battery(+) and
battery(-) terminals to their local attach points.
| Quote: | Assuming the foregoing is acceptable, is it sufficient for me to use one
#4 wire from the positive side of each contactor forward to the starter
contactor and cross-feed contactor appropriately?
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I think this will be fine.
| Quote: | Is it OK to use one wire for the battery ground from the rear batteries
forward to the firewall? By that I mean can I use a single say #2 wire to
bring the ground forward to the firewall ground bus locations?
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Ground batteries locally, each to a separate tab riveted
to most robust structure available. See:
http://aeroelectric.com/articles/Battery_Grounds/Battery_Grounds.html
| Quote: | You recommend the main battery bus connection to the main battery
contactor (usually a #10 wire) be kept less than 6 inches. Obviously if
the battery contactor is located aft, that is not possible. Do I need to
fuse-protect the line, or increase the wire size?
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It IS possible because the always hot busses are located
next to their respective batteries.
| Quote: | Bob, Thank you again in advance!
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My pleasure sir!
Bob . . .
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( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
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