steve(at)tomasara.com
Guest
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 Posted: Tue Sep 16, 2008 5:58 pm Post subject: E-Mag P-Mag Safety info - Well reasoned followup part2 |
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The second part of Nick U's following message - Steve.
*************** from canard-aviators *******************
11.
Emag/Pmag Discussion Part 2
<http://groups.yahoo.com/group/canard-aviators/message/46254;_ylc=X3oDMTJydmg1YzNtBF9TAzk3MzU5NzE1BGdycElkAzI4NTY0ODcEZ3Jwc3BJZAMxNzA1MzQwMDg1BG1zZ0lkAzQ2MjU0BHNlYwNkbXNnBHNsawN2bXNnBHN0aW1lAzEyMjE2MDUwNjM->
Posted by: "U-Nick" unick3(at)gmail.com
<mailto:unick3(at)gmail.com?Subject=%20Re%3AEmag%2FPmag%20Discussion%20Part%202>
unick3 <http://profiles.yahoo.com/unick3>
Tue Sep 16, 2008 3:02 pm (PDT)
The Resolution:
Immediately after returning from OSH, a in-house review of the
assembly was initiated and a new magnet cup was designed by Emagair to
address the concerns of how the magnet assembly is mounted.
1. The mass was significantly reduced from 9.4g to 3.7g.
2. The shaft now have keyway to lock the cup and shaft together.
3. Roll pins have been inserted through the cup and shaft to lock
them in place.
4. No adhesive is being used (they are press fit into place)
Additionally, a mechanical engineer who is deeply involved with the
aviation field, with years of experience working with aviation engines
was hired to do a top to bottom review of the mechanics of the
ignition system including the magnetic cup assembly.
The "fix" (keyway/rollpin) may be overkill (not I am not an expert in
this area), but to me it is much more sensible and robust than the
previous mounting system. In talking with Emagair the design might
change again IF the engineer they hired determines this new mounting
method is way too robust and can be further modified for ease of
manufacturing and future reliability. The company has issued a
service recall on their Pmag/Emag's to replace the magnet assembly.
They will tear down the units, inspect them, replace bearings, seals,
update electronics, etc free of charge. You only have to pay shipping
one way (to them).
If you wish to see the old and new cup assemblies, they have posted
pictures on thier website under "Service Notes". On a side note,
the electronics of the both the Pmag/Emag systems has been very
reliable and they have seen very few issues in this area.
For my part, I will not ground my plane and will continue to
comfortably fly my Pmag with complete confidence. I still think it is
a great product and it works very well in my installation.
Before anyone has a bone to pick with me for my posts, I want to
assure every I am not an advocate or have any involvement with this
company. I am just a user of their product and want to provided a
fuller picture of this issue based on my discussions with the company
and my overall positive experience. That is what this group is all
about isn't it? Sharing of information information.
Nick Ugolini
Charleston, SC
LongEZ-N29TM (2390 hrs), Cozy IV-N199V (restoring), Cozy 540RG
(planning stage)
Website: http://www.canardzone.com/members/nickugolini/
<http://www.canardzone.com/members/nickugolini/>
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