VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 02-16-2017, 07:38 PM
TXFlyGuy TXFlyGuy is offline
 
Join Date: May 2012
Location: Jazz Town, USA, TX
Posts: 332
Default EFII Bus Manager

How many here are flying with the EFII Bus Manager? It looks pretty good, and actually is similar in some ways to the auto-bus tie switching we have on Boeings.
I contacted the company, and their claim was they have never experienced a failure of the bus manager.

What is your experience?

http://www.flyefii.com/products/bus-managaer/
Reply With Quote
  #2  
Old 02-16-2017, 08:00 PM
rv7charlie rv7charlie is online now
 
Join Date: May 2006
Location: Pocahontas MS
Posts: 2,550
Default

If you have an electrically dependent a/c (engine, and/or, if IFR capable, panel), get an actual schematic of the box's guts & analyze failure modes.

There was an extensive discussion on the Aeroelectric list recently.
Reply With Quote
  #3  
Old 02-17-2017, 07:57 AM
TXFlyGuy TXFlyGuy is offline
 
Join Date: May 2012
Location: Jazz Town, USA, TX
Posts: 332
Default

The company claims no failures. It does have an emergency selector to manually select a battery to power the essential bus in the event of a failure.

No one here flying with this?
Reply With Quote
  #4  
Old 02-17-2017, 08:01 AM
rv7charlie rv7charlie is online now
 
Join Date: May 2006
Location: Pocahontas MS
Posts: 2,550
Default

Quote:
Originally Posted by TXFlyGuy View Post
The company claims no failures. It does have an emergency selector to manually select a battery to power the essential bus in the event of a failure.

No one here flying with this?
See my previous post.
Reply With Quote
  #5  
Old 02-17-2017, 08:20 AM
jcaplins's Avatar
jcaplins jcaplins is offline
 
Join Date: Feb 2006
Location: Davis, CA, USA
Posts: 453
Default

I have one; and my -7 requires electrons to keep the engine running.
I had a problem with the Fuel pump switch-over circuitry during the initial testing after install. The problem was was taken care of perfectly by EFII.

I'm happy with it and if I could make any changes, it would be to add an "off" positions to the fuel pumps. (as it stands you can only switch between "1/auto" and "2".) I may add something to the switch/relay circuit sometime in the future to take care of that.
__________________
Jeff Caplins
California
RV7 N76CX
(started: Feb 2002 --> Completed: May 2016)
Reply With Quote
  #6  
Old 02-17-2017, 09:42 AM
TXFlyGuy TXFlyGuy is offline
 
Join Date: May 2012
Location: Jazz Town, USA, TX
Posts: 332
Default

Quote:
Originally Posted by jcaplins View Post
I have one; and my -7 requires electrons to keep the engine running.
I had a problem with the Fuel pump switch-over circuitry during the initial testing after install. The problem was was taken care of perfectly by EFII.

I'm happy with it and if I could make any changes, it would be to add an "off" positions to the fuel pumps. (as it stands you can only switch between "1/auto" and "2".) I may add something to the switch/relay circuit sometime in the future to take care of that.
Thanks. Our flight testing is a few months down the road. Good to hear that EFII gave you good support.
Reply With Quote
  #7  
Old 02-17-2017, 10:22 AM
Fred.Stucklen's Avatar
Fred.Stucklen Fred.Stucklen is offline
 
Join Date: Oct 2006
Location: Brooksville, FL
Posts: 306
Default Buss Manager Concept

I've essentially installed my own design of this concept, and for a LOT less $$$. My aux fuel pump has OFF - AUTO - ON selection modes.

Quote:
Originally Posted by TXFlyGuy View Post
How many here are flying with the EFII Bus Manager? It looks pretty good, and actually is similar in some ways to the auto-bus tie switching we have on Boeings.
I contacted the company, and their claim was they have never experienced a failure of the bus manager.

What is your experience?

http://www.flyefii.com/products/bus-managaer/
__________________
Fred Stucklen
wstucklen1@cox.net
RV-7A N924RV Flying (1490 Hrs & counting)
RV-6A N926RV 875 Hrs (Sold)
RV-6A N925RV 2008 Hrs (Sold)
Reply With Quote
  #8  
Old 02-17-2017, 03:24 PM
bret's Avatar
bret bret is offline
 
Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,745
Default

Dual EFII, I went with all manual high quality switches, my HDX will alert me if fuel pressure or volts get low, then I just confirm and flip a switch, BU pump, ECM, or battery. KISS!
__________________
7A Slider, EFII Angle 360, CS, SJ.
2018 gladly supported
Reply With Quote
  #9  
Old 02-17-2017, 05:56 PM
johnbright's Avatar
johnbright johnbright is offline
 
Join Date: Aug 2010
Location: Newport News, Va
Posts: 142
Default EFII wiring

I would leave out the Bus Manager. EFII provides only a simplified schematic and no mention of FMEA. Bus Manager could be OK but "we never had a failure" is not an answer; for instance, you could fly 1,000 hours with a single magneto and say that.

Would you wire the fuel pumps the way EFII suggests with shared wires, breaker, and relay?

http://www.flyefii.com/media/Bus_Man...structions.pdf
__________________
John Bright, RV-6A 25088, at FWF
O-360, 8.5:1, vert sump, SDSEFI EM-5
Dual alt, single batt. Wiring and IP CAD files here
Newport News, Va
Reply With Quote
  #10  
Old 02-17-2017, 05:57 PM
johnbright's Avatar
johnbright johnbright is offline
 
Join Date: Aug 2010
Location: Newport News, Va
Posts: 142
Default Aeroelectric LIst EFII discussion

Quote:
Originally Posted by rv7charlie View Post
If you have an electrically dependent a/c (engine, and/or, if IFR capable, panel), get an actual schematic of the box's guts & analyze failure modes.

There was an extensive discussion on the Aeroelectric list recently.
rv7charlie... do refer to this thread?
__________________
John Bright, RV-6A 25088, at FWF
O-360, 8.5:1, vert sump, SDSEFI EM-5
Dual alt, single batt. Wiring and IP CAD files here
Newport News, Va
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 06:33 PM.


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.