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Lightning Strike

 
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Martin Olliver



Joined: 04 Jan 2010
Posts: 35

PostPosted: Mon Feb 13, 2012 2:17 am    Post subject: Lightning Strike Reply with quote

Hi All. Has anyone experienced a lightning strike in a Europa? If not what is the perceived result of such a strike? A few years ago in the south of England a plastic glider was struck and broke up in flight both occupants survived as parachutes were deployed. A luxury I am unable to have due to size issues (not saying I am fat just well built!) My concern with the Europa is the lack of bonding between components and conductors to ensure components don't explode apart, as happened with the glider.
If as I suspect we all take a risk with this issue has any one considered any possible remedial action to improve the situation?
Martin.


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nigel henry



Joined: 24 Feb 2011
Posts: 16
Location: oxford uk

PostPosted: Mon Feb 13, 2012 2:44 am    Post subject: Lightning Strike Reply with quote

Dont fly ! As for well built Iv had lunch with you in Mcdonnalds ! and two of us in one europa I think might be a no no as not able to add fuel for w&b issues, so safety is bliss see you soon Nigel Ps will be down in the next few days put the coffee on ...... and no buns ! and yes will bring your gascolator top.
[quote] Subject: Lightning Strike
From: martflynut(at)aol.com
Date: Mon, 13 Feb 2012 02:17:46 -0800
To: europa-list(at)matronics.com

--> Europa-List message posted by: "Martin Olliver" <martflynut(at)aol.com>

Hi All. Has anyone experienced a lightning strike in a Europa? If not what is the perceived result of such a strike? A few years ago in the south of England a plastic glider was struck and broke up in flight both occupants survived as parachutes were deployed. A luxury I am unable to have due to size issues (not saying I am fat just well built!) My concern with the Europa is the lack of bonding between components and conductors to ensure components don't explode apart, as happened with the glider.
If as I suspect we all take a risk with this issue has any one considered any possible remedial action to improve the situation?
Martin.




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davidjoyce(at)doctors.org
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PostPosted: Mon Feb 13, 2012 2:47 am    Post subject: Lightning Strike Reply with quote

Martin, Paul McAlister had a lightning strike on his
Europa which produced only modest damage and left the
plane fliable, detailed at:
http://europa363.versadev.com/LightningStrike.html It
was clearly a much lower energy strike than the one that
blew up the glider. It apperas to havetravelled along thge
wires to his nav ligfhts and thus avoided the control
runs. When I was contemplating flying to Ausralia I did a
fair bit of research on the topic and found it exremely
difficult to get any authoritive advice other than the CAA
publication triggered by the glider incident (CAA
AIL/0014, 2001, ISBN 1 904862 19 5) which gives
recommendations for protecting gliders. It makes excellent
sense for Europas contemplating getting near to Cu Nims.
( And although I usually feel it best to stay very well
clear of such things, it is not possible to get to
Australia without risking doing so unwittingly). My plan
had been to run some aluminium mesh along the aileron and
flap close outs to link with the rear lift pins and the
bar across the fus behind tghe seats, with foil extensions
from the outer aluminium mesh around the wing tip. I also
planned to run a link from the engine frame to the tail
wheel spring.
Hope that helps, David Joyce, G-XSDJ

On Mon, 13 Feb 2012 02:17:46 -0800
"Martin Olliver" <martflynut(at)aol.com> wrote:
Quote:

<martflynut(at)aol.com>

Hi All. Has anyone experienced a lightning strike in a
Europa? If not what is the perceived result of such a
strike? A few years ago in the south of England a plastic
glider was struck and broke up in flight both occupants
survived as parachutes were deployed. A luxury I am
unable to have due to size issues (not saying I am fat
just well built!) My concern with the Europa is the lack
of bonding between components and conductors to ensure
components don't explode apart, as happened with the
glider.
If as I suspect we all take a risk with this issue has
any one considered any possible remedial action to
improve the situation?
Martin.




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trevpond(at)aol.com
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PostPosted: Mon Feb 13, 2012 2:49 am    Post subject: Lightning Strike Reply with quote

What do Cirrus do?

Trev
G-LINN

Sent from my iPhone

On 13 Feb 2012, at 10:17, "Martin Olliver" <martflynut(at)aol.com> wrote:

Quote:


Hi All. Has anyone experienced a lightning strike in a Europa? If not what is the perceived result of such a strike? A few years ago in the south of England a plastic glider was struck and broke up in flight both occupants survived as parachutes were deployed. A luxury I am unable to have due to size issues (not saying I am fat just well built!) My concern with the Europa is the lack of bonding between components and conductors to ensure components don't explode apart, as happened with the glider.
If as I suspect we all take a risk with this issue has any one considered any possible remedial action to improve the situation?
Martin.




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davidjoyce(at)doctors.org
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PostPosted: Mon Feb 13, 2012 2:55 am    Post subject: Lightning Strike Reply with quote

Martin, Sorry that link to Paul's strike doesn't seem to
work, but perhaps he will come back with one that does!
David
On Mon, 13 Feb 2012 10:46:25 +0000
"David Joyce" <davidjoyce(at)doctors.org.uk> wrote:
Quote:

<davidjoyce(at)doctors.org.uk>

Martin, Paul McAlister had a lightning strike on his
Europa which produced only modest damage and left the
plane fliable, detailed at:
http://europa363.versadev.com/LightningStrike.html It
was clearly a much lower energy strike than the one that
blew up the glider. It apperas to havetravelled along
thge wires to his nav ligfhts and thus avoided the
control runs. When I was contemplating flying to Ausralia
I did a fair bit of research on the topic and found it
exremely difficult to get any authoritive advice other
than the CAA publication triggered by the glider incident
(CAA AIL/0014, 2001, ISBN 1 904862 19 5) which gives
recommendations for protecting gliders. It makes
excellent sense for Europas contemplating getting near to
Cu Nims.
( And although I usually feel it best to stay very well
clear of such things, it is not possible to get to
Australia without risking doing so unwittingly). My plan
had been to run some aluminium mesh along the aileron and
flap close outs to link with the rear lift pins and the
bar across the fus behind tghe seats, with foil
extensions from the outer aluminium mesh around the wing
tip. I also planned to run a link from the engine frame
to the tail wheel spring.
Hope that helps, David Joyce, G-XSDJ

On Mon, 13 Feb 2012 02:17:46 -0800
"Martin Olliver" <martflynut(at)aol.com> wrote:
>
><martflynut(at)aol.com>
>
> Hi All. Has anyone experienced a lightning strike in a
>Europa? If not what is the perceived result of such a
>strike? A few years ago in the south of England a plastic
>glider was struck and broke up in flight both occupants
>survived as parachutes were deployed. A luxury I am
>unable to have due to size issues (not saying I am fat
>just well built!) My concern with the Europa is the lack
>of bonding between components and conductors to ensure
>components don't explode apart, as happened with the
>glider.
> If as I suspect we all take a risk with this issue has
>any one considered any possible remedial action to
>improve the situation?
> Martin.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=366176#366176
>
>
>
>
>
>
>
>Un/Subscription,
>Forums!
>Admin.
>
>
>

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PostPosted: Mon Feb 13, 2012 3:31 am    Post subject: Lightning Strike Reply with quote

Pete, It was a flight experience/trial lesson flight, with
P2 having his first glider flight (and his last, inspte of
being offered a free second one in view of his first being
curtailed!) There was no water ballast, but there was some
speculation that some water contamination (?condensation)
might have added to the force of the heat generated
expansionof the air in the wing, which effectively blew
the two surfaces apart. What was established is that the
energy in the bolt was exceptionally high, significantly
more, in fact, than airliners are built to withstand.
Regards, David Joyce
On Mon, 13 Feb 2012 06:16:04 -0500
Peter Zutrauen <peterz(at)zutrasoft.com> wrote:
Quote:
Hi Martin,

I was under the impression that the glider you referred
to broke up in
flight due to the water ballast in the wings?

Indeed in the archives you should find Paul Mcallister's
lightning strike
experience. Quite a read!

http://www.aeroelectric.com/articles/Anatomy_of_a_Lightning_Strike.pdf

Cheers,
Pete
A239

On Mon, Feb 13, 2012 at 5:17 AM, Martin Olliver
<martflynut(at)aol.com> wrote:

>
><martflynut(at)aol.com>
>
> Hi All. Has anyone experienced a lightning strike in a
>Europa? If not what
> is the perceived result of such a strike? A few years
>ago in the south of
> England a plastic glider was struck and broke up in
>flight both occupants
> survived as parachutes were deployed. A luxury I am
>unable to have due to
> size issues (not saying I am fat just well built!) My
>concern with the
> Europa is the lack of bonding between components and
>conductors to ensure
> components don't explode apart, as happened with the
>glider.
> If as I suspect we all take a risk with this issue has
>any one considered
> any possible remedial action to improve the situation?
> Martin.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=366176#366176
>


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paul.the.aviator(at)gmail
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PostPosted: Mon Feb 13, 2012 4:20 am    Post subject: Lightning Strike Reply with quote

Hi Martin,

I documented a lightning strike at http://www.europa.net.nz/363/index.html.  Its under the drop down on the left hand side.

Paul

On Mon, Feb 13, 2012 at 4:17 AM, Martin Olliver <martflynut(at)aol.com (martflynut(at)aol.com)> wrote:
[quote] --> Europa-List message posted by: "Martin Olliver" <martflynut(at)aol.com (martflynut(at)aol.com)>

Hi All. Has anyone experienced a lightning strike in a Europa? If not what is the perceived result of such a strike? A few years ago in the south of England a plastic glider was struck and broke up in flight both occupants survived as parachutes were deployed. A luxury I am unable to have due to size issues (not saying I am fat just well built!) My concern with the Europa is the lack of bonding between components and conductors to ensure components don't explode apart, as happened with the glider.
 If as I suspect we all take a risk with this issue has any one considered any possible remedial action to improve the situation?
Martin.

[b]


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grahamsingleton(at)btinte
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PostPosted: Mon Feb 13, 2012 5:02 am    Post subject: Lightning Strike Reply with quote

Pete & Martin
It was the control runs I think, but probably also moisture in the core of the composite skins, I remember reading that the wings exploded like confetti.
Graham
From: Peter Zutrauen <peterz(at)zutrasoft.com>
To: europa-list(at)matronics.com
Sent: Monday, 13 February 2012, 11:16
Subject: Re: Lightning Strike


Hi Martin,

I was under the impression that the glider you referred to broke up in flight due to the water ballast in the wings?

Indeed in the archives you should find Paul Mcallister's lightning strike experience. Quite a read!

http://www.aeroelectric.com/articles/Anatomy_of_a_Lightning_Strike.pdf

Cheers,
Pete
A239

On Mon, Feb 13, 2012 at 5:17 AM, Martin Olliver <martflynut(at)aol.com (martflynut(at)aol.com)> wrote:
[quote] --> Europa-List message posted by: "Martin Olliver" <martflynut(at)aol.com (martflynut(at)aol.com)>

Hi All. Has anyone experienced a lightning strike in a Europa? If not what is the perceived result of such a strike? A few years ago in the south of England a plastic glider was struck and broke up in flight both occupants survived as parachutes were deployed. A luxury I am unable to have due to size issues (not saying I am fat just well built!) My concern with the Europa is the lack of bonding between components and conductors to ensure components don't explode apart, as happened with the glider.
If as I suspect we all take a risk with this issue has any one considered any possible remedial action to improve the situation?
Martin.




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PostPosted: Mon Feb 13, 2012 6:22 am    Post subject: Lightning Strike Reply with quote

I have had a minor strike some years ago. Judging by the trail of 'damage' it appears to have entered by the tailpipe and exited via the radiator. But it was minor and no repair was necessary.Manufacturers like Cirrus and Diamond have integrated aluminum or copper mesh into the wing skins.
Karl

From: gbupa(at)hotmail.com
To: europa-list(at)matronics.com
Subject: RE: Lightning Strike
Date: Mon, 13 Feb 2012 10:44:08 +0000

.ExternalClass .ecxhmmessage P {padding:0px;} .ExternalClass body.ecxhmmessage {font-size:10pt;font-family:Tahoma;} Dont fly ! As for well built Iv had lunch with you in Mcdonnalds ! and two of us in one europa I think might be a no no as not able to add fuel for w&b issues, so safety is bliss see you soon Nigel Ps will be down in the next few days put the coffee on ...... and no buns ! and yes will bring your gascolator top.
Quote:
Subject: Lightning Strike
From: martflynut(at)aol.com
Date: Mon, 13 Feb 2012 02:17:46 -0800
To: europa-list(at)matronics.com

--> Europa-List message posted by: "Martin Olliver" <martflynut(at)aol.com>

Hi All. Has anyone experienced a lightning strike in a Europa? If not what is the perceived result of such a strike? A few years ago in the south of England a plastic glider was struck and broke up in flight both occupants survived as parachutes were deployed. A luxury I am unable to have due to size issues (not saying I am fat just well built!) My concern with the Europa is the lack of bonding between components and conductors to ensure components don't explode apart, as happened with the glider.
If as I suspect we all take a risk with this issue has any one considered any possible remedial action to improve the situation?
Martin.




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PostPosted: Mon Feb 13, 2012 6:53 am    Post subject: Lightning Strike Reply with quote

Martin,

I had a case 8.th of June 2008. It went in via a
fin top mounted strobo (it melted and remainders
are in my "museum" now). Never found an outcoming
hole. It broke also an electric trim and we had to
land when trimmed for a cruise speed. It visited
also a radio but no radio damages. I felt it via
power lever and co-pilot got some electric
experience via his headsets.

That occurred when we flew between two black CBs,
distance was about 10 nm /each. I cannot verify
was it a strike or so called St. Elmo´s fire. Not
very fun anyway.

What I did later to improve the situation? Nothing
but try to stay more clear about CBs.

Raimo
OH-XRT
FINLAND

-----Alkuperäinen viesti-----
From: Martin Olliver
Sent: Monday, February 13, 2012 12:17 PM
To: europa-list(at)matronics.com
Subject: Lightning Strike


Olliver" <martflynut(at)aol.com>

Hi All. Has anyone experienced a lightning strike
in a Europa? If not what is the perceived result
of such a strike? A few years ago in the south of
England a plastic glider was struck and broke up
in flight both occupants survived as parachutes
were deployed. A luxury I am unable to have due to
size issues (not saying I am fat just well built!)
My concern with the Europa is the lack of bonding
between components and conductors to ensure
components don't explode apart, as happened with
the glider.
If as I suspect we all take a risk with this issue
has any one considered any possible remedial
action to improve the situation?
Martin.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=366176#366176

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Martin Olliver



Joined: 04 Jan 2010
Posts: 35

PostPosted: Tue Feb 14, 2012 2:21 am    Post subject: Re: Lightning Strike Reply with quote

Thank you all for your input.
Martin.


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PostPosted: Tue Feb 14, 2012 2:32 am    Post subject: Lightning Strike Reply with quote

Just remember to take a pee before you take off Wink BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }



On Tue 14/02/12 10:21 , "Martin Olliver" martflynut(at)aol.com sent:
[quote]
Thank you all for your input. The good news here is that those of you who have had a lightning strike, seem to have only suffered minor or no damage at all. The situation with the glider seems to be different because of the moisture in the wings. I think we can all fly with cautious optimism on this one.
Martin.




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PostPosted: Tue Feb 14, 2012 2:39 am    Post subject: Lightning Strike Reply with quote

On 02/13/2012 11:17 AM, Martin Olliver wrote:

Quote:
Hi All. Has anyone experienced a lightning strike in a Europa? If not
what is the perceived result of such a strike?

The result is impossible to predict. Lightning stikes comes in all sizes
and shapes. You can get a little protection against very light strikes
(for of course a weight penalty), but since you don't know what is going
to strike you there is just one effective measure: stay away from
anything that looks like a TS.

If you embed copper mesh in your wings it will make your wings much
heavier, and of course if the strike is heavy enough the mesh will melt
anyway and take the wing with it. Any strike generates heat, and as we
all know our Europa's can not tolerate much heat, not much what we can
do about it except for using aluminium instead of glass fiber.

As much as the size and direction of lightning strikes vary, so do the
results. The best in terms of survivability are vertical strikes. They
don't search for your airplane, you just have to fly through a strike in
progress. Alas, they are the least occuring stikes in airplanes. Much
more occuring are spanwise and lenghtwise strikes. Your airplane offers
an electric charge a comfortable path to find its opponent. Also, your
exhaust fumes leave a trail of extra conductive air, due to the carbon
and extra moisture in it. Any charge following that trail will find your
airplane. Spanwise strikes bring the risk of welding the aileron
controls, and of course the heat expands the air in the wings and the
wings may just blow apart. Lenghtwise strikes will likely travel via the
rudder cables. Apart from taking the ruddder out when the tiny cables
melt, they might melt through the fuel tank which is just an inch away.
Heat and fuel don't go along very well. And of course the rudder cables
end at the rudder pedals, so I hope you don't have wet feet when it happens.
The avionics and electric systems are the least of your concerns, but
anything might fail, if not everything. It is likely you can't talk to
anyone anymore, have no navigation anymore, and have to land your
crippled airplane trimmed for cruise speed and possibly without rudder
or aileron control without assistance. If you survived the initial
strike at all of course.

I remember the story of someone who got hit by lightning. They found his
airplane with all the controls welded. Some research revealed that the
poor pilot had flown for at least 10 minutes after all the controls
where welded inmovable before he crashed...

So, I will avoid thunderstorms at all costs.
In my airplane I installed a stormscope. If it indicates anything
threatening closer than 100nm, I will just land and fly another day.

Frans


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PostPosted: Tue Feb 14, 2012 2:41 am    Post subject: Lightning Strike Reply with quote

On 02/14/2012 11:21 AM, Martin Olliver wrote:

Quote:
Thank you all for your input. The good news here is that those of you
who have had a lightning strike, seem to have only suffered minor or
no damage at all. The situation with the glider seems to be different
because of the moisture in the wings. I think we can all fly with
cautious optimism on this one. Martin.

I think you can not. These people had just tremendous luck. The wings of
an Europa will explode if the strike is anything more than "extremely
light".

Frans


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Speedbird



Joined: 18 Jan 2008
Posts: 9

PostPosted: Tue Feb 14, 2012 2:43 am    Post subject: Lightning Strike Reply with quote

If you don't have farradays, stay well clear of CB's and where to suspect discharging!
I have flown at least 5000 hours in King Airs with multiple hits and it never fells secure or "god enoug" around thunder and lightning...
I have seen composite parts hit by lightning and it has always destroyed parts beyond repair!
Don't fly near it...
My 2 cents of recommendations
Cheers!
Ivan

KajakCenter Halland
Org nr; 5805034625
P: +46 703 621310
P: +46 704 694444
M: midwing(at)telia.com
W: www.kajakcenter-halland.se
14 feb 2012 kl. 11:21 skrev "Martin Olliver" <martflynut(at)aol.com>:

Quote:


Thank you all for your input. The good news here is that those of you who have had a lightning strike, seem to have only suffered minor or no damage at all. The situation with the glider seems to be different because of the moisture in the wings. I think we can all fly with cautious optimism on this one.
Martin.




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Martin Olliver



Joined: 04 Jan 2010
Posts: 35

PostPosted: Tue Feb 14, 2012 2:53 am    Post subject: Re: Lightning Strike Reply with quote

Not looking good then.
Martin


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Speedbird



Joined: 18 Jan 2008
Posts: 9

PostPosted: Tue Feb 14, 2012 2:55 am    Post subject: Lightning Strike Reply with quote

Frans,
That is the best approach!
I do fully agree.
Don't fly in or near clouds especially those convective ones...
There is no such thing as a "mild" TS...
Blue Skies!
Ivan
Frmr FC at SOS Flygambulans AB
KajakCenter Halland
Org nr; 5805034625
P: +46 703 621310
P: +46 704 694444
M: midwing(at)telia.com
W: www.kajakcenter-halland.se
14 feb 2012 kl. 11:37 skrev Frans Veldman <frans(at)privatepilots.nl>:

Quote:


On 02/13/2012 11:17 AM, Martin Olliver wrote:

> Hi All. Has anyone experienced a lightning strike in a Europa? If not
> what is the perceived result of such a strike?

The result is impossible to predict. Lightning stikes comes in all sizes
and shapes. You can get a little protection against very light strikes
(for of course a weight penalty), but since you don't know what is going
to strike you there is just one effective measure: stay away from
anything that looks like a TS.

If you embed copper mesh in your wings it will make your wings much
heavier, and of course if the strike is heavy enough the mesh will melt
anyway and take the wing with it. Any strike generates heat, and as we
all know our Europa's can not tolerate much heat, not much what we can
do about it except for using aluminium instead of glass fiber.

As much as the size and direction of lightning strikes vary, so do the
results. The best in terms of survivability are vertical strikes. They
don't search for your airplane, you just have to fly through a strike in
progress. Alas, they are the least occuring stikes in airplanes. Much
more occuring are spanwise and lenghtwise strikes. Your airplane offers
an electric charge a comfortable path to find its opponent. Also, your
exhaust fumes leave a trail of extra conductive air, due to the carbon
and extra moisture in it. Any charge following that trail will find your
airplane. Spanwise strikes bring the risk of welding the aileron
controls, and of course the heat expands the air in the wings and the
wings may just blow apart. Lenghtwise strikes will likely travel via the
rudder cables. Apart from taking the ruddder out when the tiny cables
melt, they might melt through the fuel tank which is just an inch away.
Heat and fuel don't go along very well. And of course the rudder cables
end at the rudder pedals, so I hope you don't have wet feet when it happens.
The avionics and electric systems are the least of your concerns, but
anything might fail, if not everything. It is likely you can't talk to
anyone anymore, have no navigation anymore, and have to land your
crippled airplane trimmed for cruise speed and possibly without rudder
or aileron control without assistance. If you survived the initial
strike at all of course.

I remember the story of someone who got hit by lightning. They found his
airplane with all the controls welded. Some research revealed that the
poor pilot had flown for at least 10 minutes after all the controls
where welded inmovable before he crashed...

So, I will avoid thunderstorms at all costs.
In my airplane I installed a stormscope. If it indicates anything
threatening closer than 100nm, I will just land and fly another day.

Frans






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davidjoyce(at)doctors.org
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PostPosted: Tue Feb 14, 2012 3:01 am    Post subject: Lightning Strike Reply with quote

Martin, I would like to think you are right but I doubt
you are! I think that any Europa (at least the XS, which
is constructed in very much the same way as the K21 glass
fibre glider) is just as likely to have dampness in the
wings. On top of that, if you look at the AAIB report (
www.aaib.gov.uk/cms_resources.cfm?file=/dft_avsafety_pdf_500699.pdf
) there is no mention of water as far as I can see - it
appears to be just a shock wave associated with the very
high energy electrical discharge. For me the point at
issue is the size of the lightning bolt. As well as
blowing up the wings the current fused or destroyed most
of the aileron control mechanisms so that it would have
been unflyable even with the wings intact. It seems that
the 3 reported Europa strikes have all been low energy
ones, and I have no optimism about an unmodified Europa
surviving a medium or large strike. Regards, David Joyce,
G-XSDJ
On Tue, 14 Feb 2012 02:21:36 -0800
"Martin Olliver" <martflynut(at)aol.com> wrote:
Quote:

<martflynut(at)aol.com>

Thank you all for your input. The good news here is that
those of you who have had a lightning strike, seem to
have only suffered minor or no damage at all. The
situation with the glider seems to be different because
of the moisture in the wings. I think we can all fly with
cautious optimism on this one.
Martin.




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