Fred, Rob, Jeff
Regarding the following recent comments about EXPBus and at the risk of
being flamed lets state the facts and if there are indeed names and facts.
Name them!
"I have heard bad things about the EXP bus from a lot of highly experienced
people I don't want to name on this forum. However I have heard very good
things from the same people about the power panel right above it in ACS
catalog. Part # 11-675 or 11680"
What is a bad thing?
"Before spending big bucks for the ExpBus check out
http://www.aeroelectric.com/articles/expbusad.html";
Big bucks - The prices are as follows:
EXPBus Unit without Switches - $299.00
EXPBus with complete Unit - Switches, Mountings, Board - $424.00
EXPBus with Complete Unit and Lighted Switches - $524.00
Plug -in Indicator Panel showing System Status - $129.00
The ACS Units are:
Homebuilders Power Panel- P/N 11-11675 - $550.000
Mini Power Panel - P/N 11-11680 - $395.000
http://www.aircraftspruce.com/catalog/elpages/powerpanels.php
These are good value too with most items for power Distribution' included as
in EXPBus.
ACS also sell EXPBus
http://www.aircraftspruce.com/catalog/elpages/expbus.php
The fact is we all have choice. The positive reasoning I used for using EXP
Bus was the concept of a centralised Electrical Distribution Module allowing
easy and less thought provoking design to the various devices needing
connection in an aircraft own built and maintained. The Crowbar Unit can be
fitted and true, the standard EXPBus Drawing doesn't cater for Permanent
Magnet Alternator. There is a Rotax Diagram for download if required which
does help. The Crowbar is an add on again of personal choice and needs to be
integrated into Circuit. Bob Nuckolls has provided enough insight and
information for it to be included albeit with some input and thoughts from
us.
http://www.expbus.com/pages/avionics_support.htm
Look for Rotax 912/914 in list.
BTW. Control Vision Main page - http://www.controlvision.com
I have used Bob Nuckolls publications throughout the wiring and also have
seen his opinion on EXPBus. He has some niggles and certainly thinks they
have marketing hype but in the main the product passes muster albeit not his
personal choice.
I have dealt with Control Vision (manufacturers) and have had good service.
In summary any decision we make on Modules or parts we use is 'subjective',
our choice and wherever possible is informed. Paul Stewart's original
question asked about EXPBus in that vain. Some responses have not met that
criteria IMHO.
My slightly agitated response is that the thread of this subject gave a
feeling of poor judgement on my part and others for choosing EXPBus. I'll
have to stand by that choice over the next few years as I start to fly next
year. But it was my choice and one I had made in an informed way based on
facts.
Regards
Gerry
Gerry Holland
Europa 384 G-FIZY
Trigear with 912 and Arplast CS Prop.
Fuselage being Painted, Wings ready to paint, Flying surfaces painted
Airframe Wiring complete, Panel 75% done . Includes Dynon EFIS, KMD 150,
Icom A-200 and SL70 Transponder. AoA Fitted.
Activity on Panel completion, Design and build Heater Unit.
+44 7808 402404
gnholland@onetel.com
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