VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #41  
Old 03-28-2018, 12:57 AM
Dustyone Dustyone is offline
 
Join Date: Oct 2012
Location: Brisbane,Austalia
Posts: 128
Default

Hi Kelly,

Great points to bring up about placement of switches.
All of my power/Ign switches are grouped to the far left and the ignition switches are fitted with guards.
Once the aircraft is started,my hands have no need to visit this location until shut down thereby reducing the possibility of accidentally turning off critical systems.


The Dual CPI is about as independent as you can get with an EI. They do not share any common Power or Earths and only share the same physical location for the Dual Crank sensor. ( a sensor that is well protected,see earlier in this post )
However I agree that this design requires a robust electrical design and simple is nearly always better. Both ignitions are protected from over-voltage and the aux battery is monitored by the Dynon's.

It was interesting walking the flight-line at Oshkosh when I was last there and there was a Carbon Cub with the cowls off. It was fitted with Dual Lighspeed ignition and the crank sensor wires were just hanging in the breeze unprotected and un-clamped. Some people just don't understand what a robust wiring install looks like!

The benefits of EI are well documented and as has been pointed out many times a correctly timed and operated Mag System below 8000 ft is very similar in performance to any EI.
Having Dual Fuel Maps for the different fuels is a huge benefit to me.
My aircraft was approaching 500 hrs so , money had to be spent anyway servicing the mags.

The gains to be had are in cost of ownership over time and the fuel savings up high if you are a long distance cruiser. The spark energy is nearly 7 times greater with any EI and enhances all modes of operation especially hot starts and aggressive leaning at idle,no more fouled plugs.

The early adopters to this tech have paved the way for more attractive packages to be offered by SDS and others.
__________________
Ashley Miller
RV-10 #40597
Dual SDS CPI
http://www.vansairforce.com/communit...d.php?t=140051
Airflow Systems Air-Con
http://www.vansairforce.com/communit...4&postcount=15
VH-XTE 500hrs +
Redcliffe,Brisbane
Australia
Photos : https://goo.gl/photos/zsfBeVofHMe4ze7i7
Reply With Quote
  #42  
Old 07-10-2018, 06:27 AM
Dustyone Dustyone is offline
 
Join Date: Oct 2012
Location: Brisbane,Austalia
Posts: 128
Default Aux Batt Testing

It is now over 200 hrs since I installed the first CPI and now 60+hrs since my aircraft became "mag-less" and the Dual CPI was installed.

Nothing to report and the ignitions are performing "As Advertised" in all areas of operation.

Todays flight was a short 40 min flight and was a great way to test the Aux Ignition Battery in flight.

After take off and in cruise,I pulled the charging CB to the No 2 CPI auxiliary battery.




The voltage held at 13 volts for the duration of the flight,
( The battery should power the Ignition System for 1 1/2hrs + )




The purpose of the test was for me to understand and observe my aux back up system in action.
Nothing to see ,quite boring really,just the way I like it
__________________
Ashley Miller
RV-10 #40597
Dual SDS CPI
http://www.vansairforce.com/communit...d.php?t=140051
Airflow Systems Air-Con
http://www.vansairforce.com/communit...4&postcount=15
VH-XTE 500hrs +
Redcliffe,Brisbane
Australia
Photos : https://goo.gl/photos/zsfBeVofHMe4ze7i7

Last edited by Dustyone : 07-10-2018 at 07:16 AM.
Reply With Quote
  #43  
Old 07-14-2018, 05:45 PM
Dustyone Dustyone is offline
 
Join Date: Oct 2012
Location: Brisbane,Austalia
Posts: 128
Default



__________________
Ashley Miller
RV-10 #40597
Dual SDS CPI
http://www.vansairforce.com/communit...d.php?t=140051
Airflow Systems Air-Con
http://www.vansairforce.com/communit...4&postcount=15
VH-XTE 500hrs +
Redcliffe,Brisbane
Australia
Photos : https://goo.gl/photos/zsfBeVofHMe4ze7i7
Reply With Quote
  #44  
Old 07-15-2018, 09:49 AM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 4,781
Default

Good test to do Ashley. The current draw on the CPI is very low so you don't need a lot of battery capacity to keep them running- about 1-1.5 amps in cruise each, depending on type and rpm.

We appreciate the promotion!
__________________

Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 424.4 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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 08:52 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.