Today's Message Index:
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1. 07:12 AM - Electrical bonding (Kelvin Weston)
2. 09:49 AM - classic tail wheel (spcialeffects)
3. 10:18 AM - AW: classic tail wheel (A. Buess Aviatik)
4. 11:11 AM - Re: Electrical bonding (graeme bird)
5. 11:30 AM - Re: AW: classic tail wheel (spcialeffects)
6. 03:08 PM - Re: Re: Electrical bonding (davidjoyce@doctors.org.uk)
Message 1
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Subject: | Electrical bonding |
Hi All
There is no mention in the Europa build manual of any requirement for electrical
bonding.
I assume therefore, that there is no need for electrical bonding of the various
metal parts bolted to the airframe, ie control rods, brackets, etc.
But what have others done?
Obviously there is a requirement on a composite airframe for an earth return (power)
from the various electrical bits and I know there has been much discussion
on this forum regarding avionics earths, earth loops and power / signal returns
to avoid noise and interference. But what about electrical bonding?
Has anyone felt the need to bond fuel fittings for example?
I know Im opening a can of worms here, but hey! Its a discussion forum after all!
--------
Regards
Kelv Weston
Kit 497
kelv@kdweston.biz
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433381#433381
Message 2
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Subject: | classic tail wheel |
Hello all. I am building a classic mono and am fitting the tail wheel at the moment.
I am also using the XS stern post instead of the classic build option. Today
i drilled the hole in the stern post, in the correct location BUT i followed
the wrong line. I drilled it in line with the angle of the spring mount of
the wheel and not the fuselage bottom :( . I have the correct distance from
the bottom of the fuselage and the spring end 235mm, plus i have a good fit around
the spring arm through the stern post but i now need 12 plys or shims under
where the bolt goes.
SO what im asking is should i go with the 12 shims and use a longer bolt
OR file the hole at the bottom and and get the correct 5 or so shims but have
an untidy fit around the stern post area? All views/advice welcome. Thanks Frank
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433387#433387
Message 3
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Subject: | classic tail wheel |
Frank,
Where are you located? I have a spare stern post if you need to redo the
whole spring installation.
Regards, Alfred
Alfred Buess
CH-3700 Spiez, Switzerland
Europa XS HB-YKI, Ercoupe 415-E N94804
-----Ursprngliche Nachricht-----
Von: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] Im Auftrag von spcialeffects
Gesendet: Dienstag, 11. November 2014 18:49
An: europa-list@matronics.com
Betreff: Europa-List: classic tail wheel
--> <spcialeffects@aol.com>
Hello all. I am building a classic mono and am fitting the tail wheel at the
moment. I am also using the XS stern post instead of the classic build
option. Today i drilled the hole in the stern post, in the correct location
BUT i followed the wrong line. I drilled it in line with the angle of the
spring mount of the wheel and not the fuselage bottom :( . I have the
correct distance from the bottom of the fuselage and the spring end 235mm,
plus i have a good fit around the spring arm through the stern post but i
now need 12 plys or shims under where the bolt goes.
SO what im asking is should i go with the 12 shims and use a longer
bolt OR file the hole at the bottom and and get the correct 5 or so shims
but have an untidy fit around the stern post area? All views/advice welcome.
Thanks Frank
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433387#433387
Message 4
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Subject: | Re: Electrical bonding |
Bonding indeed, pointless I would think, nice lightening collectors in the wings
and fuselage to convey to the control stick , but then unless you have one
hand on the ground you are probably OK. :-)
--------
Graeme Bird
G-UMPY
Mono Classic/XS 912S/Woodcomp 3000/3W
Newby: 135 hours 32 months on the Mono
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433390#433390
Message 5
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Subject: | Re: AW: classic tail wheel |
Thanks Alfred but thats a bit drastic to start again. All can be corrected its
just which is the best way forward
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=433392#433392
Message 6
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Subject: | Re: Electrical bonding |
When I was contemplating flying to Oz I did my best to research
lightning strikes on composite aircraft, finding accounts of several
aircraft being struck with damage varying from just a few instruments
fried to wings exploded and control systems welded. Getting authoritive
advice on preventive measures proved difficult or impossible, but I came
to the following conclusions:
1. Best to steer well clear of Cu-nims
2. If you can't (& travelling through S. E. Asia it is near impossible)
then putting in a system to conduct strikes from wingtip to wing tip &
nose to tail without too much damage is worthwhile. I had planned to put
expanded aluminium mesh in the aileron & flap close outs, connecting to
the rear lift pins, and a separate system from engine frame to tail
wheel spring. I hoped/believed that this would allow small to moderate
strikes to do nothing more than cause temporary deafness, although
getting wings off later might have been a challenge!
Regards, David Joyce, G-XSDJ
On 2014-11-11 19:11, graeme bird wrote:
>
> Bonding indeed, pointless I would think, nice lightening collectors in the wings
and fuselage to convey to the control stick , but then unless you have one
hand on the ground you are probably OK. :-)
>
> --------
> Graeme Bird
> G-UMPY
> Mono Classic/XS 912S/Woodcomp 3000/3W
> Newby: 135 hours 32 months on the Mono
> g(at)gdbmk.co.uk
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=433390#433390 [1]
>
Links:
------
[1] http://forums.matronics.com/viewtopic.php?p=433390#433390
[2] http://www.aeroelectric.com
[3] http://www.buildersbooks.com
[4] http://www.homebuilthelp.com
[5] http://www.mypilotstore.com
[6] http://www.mrrace.com
[7] http://www.matronics.com/contribution
[8] http://www.matronics.com/Navigator?Europa-List
[9] http://forums.matronics.com
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