---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 03/15/06: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:08 AM - Errata Data (Robert L. Nuckolls, III) 2. 07:48 AM - Re: p-mag wiring (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 07:08:29 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Errata Data --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" 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 _____________________________________ Time: 07:48:25 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: p-mag wiring --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" 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