Today's Message Index:
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1. 07:08 AM - Errata Data (Robert L. Nuckolls, III)
2. 07:48 AM - Re: p-mag wiring (Robert L. Nuckolls, III)
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--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Just a note to remind folks that the 'Connection is a dynamic,
living work that depends on and makes good use of feedback
from readers.
As important errors are brought to my attention, errata pages
are published and linked at:
http://aeroelectric.com/whatsnew.html
For everything but the Z-figures, individual pages are offered.
When a Z-figure gets fixed, the entire Appendix Z is revised
and published. Holders of the 'Connection are encouraged to
keep an eye on the What's New page and take advantage of the
corrections made available.
Bob . . .
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
Message 2
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Subject: | Re: p-mag wiring |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
Erich,
Sorry to take so long to get back on this. Your questions prompted a review
of some p-mag issues in Figures Z-13/8 and Z-33 along with the text in
the notes which I thought I'd fixed some time ago. In looking over the
originals this morning, I found several things that needed fixing so
I've updated Appendix Z to Revision F and posted the new document at:
http://aeroelectric.com/articles/Rev11/AppZ_R11F.pdf
Thanks for bringing this to my attention.
Bob . . .
At 07:33 PM 3/11/2006 -0500, you wrote:
>--> AeroElectric-List message posted by: Erich_Weaver@URSCorp.com
>
>
>Bob:
>
>My level of electrical knowledge is pretty limited, but is it possible that
>Figure Z-33 in the 'Connection showing wiring for P-mags has an error?
>
>Z-33 has the p-mag wires labeled by color (grn, red orn, and blk). Power
>appears to be supplied to the p-mag from the bat bus through the "orn" wire
>when the 2-10 switch is in the up position.
>
>Comparing to the e-magair manual - see pgs 4 and 15 in
>
>http://www.emagair.com/Manual%20L113v8.pdf
>
>the manual seems to indicate that +13.8V power would be supplied by the red
>wire (postion 5 on the control plug), and that the "orn" wire (position 4
>on the plug) is the P-lead to ground (NOT power). The blk and grn wires
>are for ground and tach respectively, consistent with Z-33.
>
>Did I catch you, or am I just too hung up on wire colors?
>
>While I got you cornered (?), I am unclear on how the additional switch you
>suggest for ign maintenance would be used. When closed, it appears to
>supply power from the bat bus to the p-mags while the two ignition switches
>are in the off position. Okay, but what does this do for me?
>
>still learning...
>
>Erich Weaver
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