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03-19-2018, 12:02 PM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,052
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Cooling fans
Exciting day - powered up for the first time !
The two fans on the base of the sub panel - anyone know if they are designed to run all the time, or only when the Skyview fans run ?
Everything else looks OK, but those fans aren't running.
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020
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03-19-2018, 12:15 PM
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Join Date: Oct 2013
Location: Powell, OH
Posts: 250
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If I remember I think they are on the Fuel Pump Bus.
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David Rohrlick
PPSEL, A&P
RV-12iS Completed
Airworthiness signed off by the FAA 1/23/2020
First Flight on 3/14/2020
Phase I Finished on 5/7/2020
Need:
Paint?
Serial#12-0864
N112DR
https://youtube.com/c/CraftingN112DR
VAF donation made for 2020
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03-19-2018, 12:36 PM
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Join Date: Nov 2015
Location: Hensley Airpark, TN
Posts: 143
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They should turn on with the Master Switch, but if you have the 5A fuel pump fuse removed, they won't run (same circuit).
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Paul Straub, First Flight May 5, 2017
N917PB, SN 120971
175 hours and counting.....
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03-19-2018, 04:46 PM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,052
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Hmmm - just tried it and yep, that's it !
Bizarre. Should really have a switch on the pump
Thinking cap on for an attractive solution.
Thanks for the quick replies.
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020
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03-19-2018, 07:23 PM
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Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
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Quote:
Originally Posted by mike newall
Thinking cap on for an attractive solution.
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Check Modifications thread for various pump switch solutions.
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rgmwa
RV-12LR 912ULS
120346
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03-20-2018, 05:18 AM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,052
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Thanks, will look. Airplane 1 is nearly done, Airplane 2 is waiting avionics so is easier to modify..
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020
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03-20-2018, 06:19 AM
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Join Date: Aug 2014
Location: Bowie MD
Posts: 886
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Where?
I've been thinking I need fans for my avionics. Just curious, can you guys expound on where these fans are and their configuration please? Imitation you know. Thanks!
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Mani
Busby MustangII (FoldingWing) Pending DAR.
Don't be a hater; I'm a cousin with thin wings! 
N251Y (res)
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03-20-2018, 07:32 AM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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There is a very specific reason the fuel pump is not on a switch.
I strongly suggest you fully understand that before adding one.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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03-20-2018, 10:15 AM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
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^^^^ Hint... it has to do with safety.
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Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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03-20-2018, 11:00 AM
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Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
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Mani, the avionics bay on the RV-12 is completely enclosed. The bottom is not open like many other aircraft. The two fans are mounted on the bottom of the avionics bay. One fan blows in and the other blows out.
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Joe Gores
RV-12 Flying
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