nuckollsr(at)cox.net
Guest
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 Posted: Mon Aug 06, 2007 6:31 am Post subject: AEC9011 and other worries . . . |
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| Quote: | Hope your trip to Osh went well. I am still interested in the AEC9011
module for the Z-19RB diagram. Can you give me an estimate as to when
this module will be available? I will be using the Eggenfellner engine
with an internally regulated alternator. Can you also give me design
modifications to your schematic to suit this application? I wish I could
use an externally regulated alternator, but at this time that isn t an
option.
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I'm not sure that's true. I'm told that Plane Power is
going to be offering an externally regulated alternator.
Check with them to see how long that will be.
Keep in mind that you don't need an alternator
installed on your airplane until time for first
flight. How far away are you from flying? I wouldn't
spend a LOT of time praying over present options especially
if a lack of understanding and knowledge may be
driving your anxiety levels upward.
| Quote: | There surely is something I can include in my design to make this
alternator application as safe as possible. Eggenfellner isn t offering
any changes in alternator options. Your help would be greatly
appreciated. I am working with Tim Hedding from B&C Electronics and
purchasing all hardware from their supply if available. You might be more
aware of what they stock and recommend something.
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Beyond incorporation of ov protection there are
no SAFETY issues that should drive your alternator
selection. Many folks seem to feel that they're
flying around with a fused bomb that only waiting
for some opportune time to light up and ruin their
day. Alternators are indeed capable of extreme
and expensive misbehavior but they are never
a safety concern in a properly architectured,
adequately maintained system, only a cost-of-
ownership concern.
| Quote: | Do I need a separate avionics master switch for the Z-19 design? Everyone
seems to think about protecting the avionics, or is the 7A fuse to the
E-bus built-in protection?
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Go to the website front page and do a search on
"avionics master". If one were useful, it would have
appeared on the Z-figures.
| Quote: | Can the (1-7) switch for the volt meter be exchanged for a (2-1)
switch? This might give the option of continuous monitoring voltage on
either battery.
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Yes, you can adjust functionality of any Z-figure
to address your wants and desires. The Z-figures are
illustrations of architecture with some parts selection
and system fabrication details. But the primary value
of the Z-figures are to lay the ground-work for
a minimum-parts count, simplest-operation system to
achieve the desired operability.
If it's absolutely necessary that a decision be made
today, get a Plane Power alternator. Install the AEC9011
when it becomes available later this summer and you'll
be done.
If you can provide me with a set of Eggenflener's
drawings, perhaps I can tailor Z-19 to be a tad more
specific to this engine.
Bob . . .
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