VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 09-13-2021, 06:59 AM
Drum Drum is offline
 
Join Date: Dec 2017
Location: Southport, CT
Posts: 37
Default Forest of Tabs Firewall Location

Hi - Building -8 with angle valve IO-360 & oil cooler on upper right hand side - finishing electrical. Am interested in thoughts for location of forest of tabs grounding point on cockpit side of firewall. Was thinking center & low because grounding strap opposite side can have short run to bottom of engine. Thanks in advance.

Warm regards,

Drum
__________________
Drum G
RV-8
Avionics & Electrical
Reply With Quote
  #2  
Old 09-13-2021, 07:51 AM
cjohngraham cjohngraham is offline
 
Join Date: Mar 2016
Location: Santa Fe
Posts: 27
Default

Sounds like a good location. What I would not do again: I put the forest of tabs on my -7A on the subpanel near the Dynon components, but found it's difficult and access see the upper tabs and terminals when troubleshooting a potential ground problem.
Reply With Quote
  #3  
Old 09-13-2021, 07:56 AM
rv8ch's Avatar
rv8ch rv8ch is offline
 
Join Date: Feb 2005
Location: LSGY
Posts: 4,152
Default

Quote:
Originally Posted by Drum View Post
Hi - Building -8 with angle valve IO-360 & oil cooler on upper right hand side - finishing electrical. Am interested in thoughts for location of forest of tabs grounding point on cockpit side of firewall. Was thinking center & low because grounding strap opposite side can have short run to bottom of engine. Thanks in advance.

Warm regards,

Drum
I put mine here - worked out well. On the FW the forest of tabs will get in the way, and be harder to run cables to.

Click image for larger version

Name:	img_4022.jpg
Views:	151
Size:	300.5 KB
ID:	15761

FW ground info is here to ground the engine and starter to the airframe:

http://www.rv8.ch/ground-point-on-firewall/

Essentially an airframe ground connects my FW to the tabs behind the instrument panel, and I also have a very small ground block on the panel itself that stays with the panel and all the stuff connected there.

http://www.rv8.ch/panel-progress/
__________________
Mickey Coggins
http://rv8.ch
"Hello, world!"
Reply With Quote
  #4  
Old 09-13-2021, 08:14 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 6,227
Default Definitely what to avoid.

Quote:
Originally Posted by cjohngraham View Post
Sounds like a good location. What I would not do again: I put the forest of tabs on my -7A on the subpanel near the Dynon components, but found it's difficult and access see the upper tabs and terminals when troubleshooting a potential ground problem.
WELL SAID . . . . . I only had one issue to resolve, but a hard to see location, unmarked wires, and harder to reach showed my location has issues.
__________________
Bill

RV-7
Reply With Quote
  #5  
Old 09-13-2021, 08:41 AM
Norman CYYJ Norman CYYJ is offline
 
Join Date: Feb 2005
Location: Victoria B.C.
Posts: 1,436
Default

Where ever you put it keep this in mind. It should be installed where you will be able to service it after the plane is completed with out a lot of contortions and cussing.
Reply With Quote
  #6  
Old 09-13-2021, 08:54 AM
Nihon_Ni's Avatar
Nihon_Ni Nihon_Ni is offline
 
Join Date: Jun 2011
Location: Fredericksburg, VA
Posts: 363
Default

I put mine on the firewall above the fuel pump. I'm not flying yet, but I'm done with the wiring. I'm happy with this location as it's been out of the way on the cockpit side and easy to route wires to it. On the engine side of the firewall, I ran a main ground from the battery neg to one of the FOT bolt, and I put a grounding strap to the engine from the other FOT bolt.
__________________
Rob K

RV-8 N884RA under construction
Reply With Quote
  #7  
Old 09-13-2021, 11:17 AM
N546RV's Avatar
N546RV N546RV is offline
 
Join Date: Aug 2010
Location: Brookshire, TX
Posts: 1,151
Default

Quote:
Originally Posted by Nihon_Ni View Post
I put mine on the firewall above the fuel pump. I'm not flying yet, but I'm done with the wiring. I'm happy with this location as it's been out of the way on the cockpit side and easy to route wires to it. On the engine side of the firewall, I ran a main ground from the battery neg to one of the FOT bolt, and I put a grounding strap to the engine from the other FOT bolt.
Same here - mine is low left, above the fuel line passthrough. All grounds go down the left gear tower and forward along the aux longeron to the forest. It remains to be seen how much maintaining this annoys me.

__________________
Philip
-8 fuselage in progress (remember when I thought the wing kit had a lot of parts? HAHAHAHAHA)
http://rv.squawk1200.net
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 07:41 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.