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01-28-2018, 06:32 AM
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Join Date: Jun 2012
Location: Tallahassee, fl
Posts: 186
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Aux battery location
I plan on PMags and was wondering where to locate the aux bat. Is there enough room on the inside if the firewall back to back with the primary bat?
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Aka YellaDawg
RV14 First Flight 10.15.2019
RV14A under construction
2020 Dues Paid
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01-28-2018, 07:27 AM
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Join Date: Dec 2012
Location: Greenback, TN
Posts: 534
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Yes there is room
This is a PC680 mounted in the area you are interested. You will need to build the mount from inside the airframe because the access panel pictured is not part of the -14 kit.

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Marvin McGraw, 5TN4
RV-14. #140039 Complete
Flight hours: 500+
2020 Dues Paid
The Dues Paid note is a reminder for me
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01-28-2018, 07:35 AM
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Join Date: Mar 2005
Location: DVT Phoenix
Posts: 1,187
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Quote:
Originally Posted by Cwood2000
I plan on PMags and was wondering where to locate the aux bat. Is there enough room on the inside if the firewall back to back with the primary bat?
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Why are you planning a back up battery for use with Pmags? Just curious.
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Larry
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01-28-2018, 03:56 PM
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Join Date: Jun 2012
Location: Tallahassee, fl
Posts: 186
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Electronic ignition requires a aux electrical system
__________________
Aka YellaDawg
RV14 First Flight 10.15.2019
RV14A under construction
2020 Dues Paid
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01-28-2018, 04:37 PM
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Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,055
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Best thing about the PMag is that it supplies it's own primary power once running; the ship battery becomes the backup and a third source is unneeded.
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Ser 104142, RV-14A flying - N1463 
Ser 83825, RV-8 building - N8638? 
USN Ret, Urologist, AME, Repeat Offender
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01-28-2018, 06:22 PM
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Join Date: Mar 2006
Location: Spring Hill, KS
Posts: 365
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Quote:
Originally Posted by M McGraw
This is a PC680 mounted in the area you are interested. You will need to build the mount from inside the airframe because the access panel pictured is not part of the -14 kit.
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Marvin, why did you install the PC680 in that area instead of the stock kit location on the firewall?
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Mark Navratil
Spring Hill, KS
RV-8A N2D #80583 - built/flew/sold
RV-14A #140017 - wings complete, empacone in progress...
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01-28-2018, 06:28 PM
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Join Date: Dec 2012
Location: Greenback, TN
Posts: 534
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PC680
Quote:
Originally Posted by czechsix
Marvin, why did you install the PC680 in that area instead of the stock kit location on the firewall?
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I have two electrical systems. One on each side between the firewall and the subpanel. I have a 1/2 Raven installed where the battery would normally be on the firewall.
__________________
Marvin McGraw, 5TN4
RV-14. #140039 Complete
Flight hours: 500+
2020 Dues Paid
The Dues Paid note is a reminder for me
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01-29-2018, 04:11 AM
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Join Date: Jun 2012
Location: Tallahassee, fl
Posts: 186
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Quote:
Originally Posted by JDA_BTR
Best thing about the PMag is that it supplies it's own primary power once running; the ship battery becomes the backup and a third source is unneeded.
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That is good news, so I don't need a back up battery! Saves much weight
Thanks for. The info!
__________________
Aka YellaDawg
RV14 First Flight 10.15.2019
RV14A under construction
2020 Dues Paid
Last edited by Cwood2000 : 01-30-2018 at 05:11 AM.
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01-29-2018, 09:00 AM
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Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,596
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Quote:
Originally Posted by Cwood2000
That is old news, so I don't need a back up battery! Saves much weight
Thanks for. The info!
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Yep - assuming you don?t have an electric dependent panel for IFR flight.
Carl
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01-29-2018, 11:59 AM
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Join Date: Sep 2007
Location: BC
Posts: 1,674
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Quote:
Originally Posted by Cwood2000
I plan on PMags and was wondering where to locate the aux bat. Is there enough room on the inside if the firewall back to back with the primary bat?
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On the work bench. Sorry, but other than for engine starting, a small backup alternator (mounted on the vacuum pad) would be much better all the way around. Lighter, less maintenance, known useable capacity which doesn?t deteriorate further as the battery ages.
Bevan.
__________________
RV7A Flying since 2015
O-360-A1F6 (parallel valve) 180HP
Dual P-mags
Precision F.I. with AP purge valve
Vinyl Wrapped Exterior
Grand Rapids EFIS
Located in western Canada
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