Today's Message Index:
----------------------
1. 01:31 AM - Re: Coax Advice for VHF antenna. (Steven Pitt)
2. 02:30 AM - Re: Coax Advice for VHF antenna. (Frans Veldman)
3. 03:11 AM - Re: Coax Advice for VHF antenna. (danny shepherd)
4. 05:16 AM - Belgian Airspace (David Joyce)
5. 06:25 AM - Re: Coax Advice for VHF antenna. (GRAHAM SINGLETON)
6. 07:12 AM - Re: Belgian Airspace (Steven Pitt)
7. 07:52 AM - Re: Coax Advice for VHF antenna. (Brian Davies)
8. 09:24 AM - Re: Belgian Airspace (mau11)
9. 09:27 AM - Re: Belgian Airspace (goff)
10. 10:11 AM - 912s Rough Running (Bryan Allsop)
11. 10:19 AM - Re: Re: Toe vs Finger Brakes (Max Cointe)
12. 10:25 AM - 912s Rough Running (Paul Wilson)
13. 11:52 AM - Re: 912s Rough Running (Bryan Allsop)
Message 1
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Subject: | Re: Coax Advice for VHF antenna. |
Tony,
Go for it - my 'Europa' aerial has worked well in 5 years of flying around
Europe. I fitted it including the soldering, but had it VSWR checked as per
the book. I am no expert on the subject and if you read through the database
of previous emails you will certainly get a variety of very clever and
technical replies. However, I can only speak as I find.
regards
Steve Pitt
G-SMDH XS Trigear with King KY97A radio
----- Original Message -----
From: "Tony Renshaw" <tonyrenshaw268@gmail.com>
Sent: Friday, October 21, 2011 1:23 AM
Subject: Europa-List: Coax Advice for VHF antenna.
>
> Gidday,
> Ive got a bit of a hybrid, a classic with a few bits of XS thrown in. For
> example I've got a sternpost, premanufactured that I was kindly given, and
> I am now wondering if this is the structure I should be attaching my
> vertical VHF antenna to the front of. Now I've got the Europa kit, with
> torrodes or whatever they are called, and a bunch of COAX. I am wondering
> if anyone has an opinion on the merits of building up this antenna or
> whether I should just bin it and use the Z shaped Bob Archer VHF antenna
> that I also have, and put it on the side of the fuselage? I don't figure
> it would hurt to give it a try, but am unsure if the Europa one is worth
> building, and if so, knowing nothing about COAX fittings attachment and
> being a lousy solderer, does anyone have any specific guidance. Thank you
> in anticipation.
> Reg
> Tony Renshaw
> Sydney Aussie
>
>
>
Message 2
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Subject: | Re: Coax Advice for VHF antenna. |
On 10/21/2011 02:23 AM, Tony Renshaw wrote:
> bunch of COAX. I am wondering if anyone has an opinion on the merits
> of building up this antenna or whether I should just bin it and use
> the Z shaped Bob Archer VHF antenna that I also have, and put it on
Go for the dipole antenna, it outperforms the Bob Archer stuff. The
latter is a compromise to save space in case your airplane is too small
to fit a decent half-wave antenna (dipole).
A dipole is the most "natural" radiator. It has 100% efficiency and
produces a toroid radiation pattern, which is exactly what you need in
an airplane. If an antenna-manufacturer claims gain over a dipole, it
means that it has gain in a certain direction but also losses in other
directions (they often forget to tell you that). Consider the antenna as
a light bulb. Sure you can produce gain in certain directions, but
regardless how you do it (lenses, reflectors) it also implies you create
dark spots (shadows) in other directions. Which is fine for a static
setup but not for an airplane. As a dipole radiates 100% of the energy,
it is not possible to create any antenna that beats this AND retains an
omnidirectional pattern at the same time.
Also, another advantage is that the dipole antenna can be placed further
away from the cockpit and tailplane assembly, which minimizes interference.
Frans
Message 3
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Subject: | Re: Coax Advice for VHF antenna. |
Tony,
I fitted the Europa kit into the tail fin as per the "good
book" and find it works perfectly. Like you I'm pretty bad at soldering
but it wasn't too hard.
Danny G-ceri tri gear xs. funkwerk atr 833.
On 21/10/2011 01:23, Tony Renshaw wrote:
> --> Europa-List message posted by: Tony Renshaw<tonyrenshaw268@gmail.com>
>
> Gidday,
> Ive got a bit of a hybrid, a classic with a few bits of XS thrown in. For example
I've got a sternpost, premanufactured that I was kindly given, and I am now
wondering if this is the structure I should be attaching my vertical VHF antenna
to the front of. Now I've got the Europa kit, with torrodes or whatever
they are called, and a bunch of COAX. I am wondering if anyone has an opinion
on the merits of building up this antenna or whether I should just bin it and
use the Z shaped Bob Archer VHF antenna that I also have, and put it on the side
of the fuselage? I don't figure it would hurt to give it a try, but am unsure
if the Europa one is worth building, and if so, knowing nothing about COAX
fittings attachment and being a lousy solderer, does anyone have any specific
guidance. Thank you in anticipation.
> Reg
> Tony Renshaw
> Sydney Aussie
>
>
Message 4
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Subject: | Belgian Airspace |
For your amusement and so that you can see that I am doing my best to nudge
Belgium into dropping its outrageous fee for letting Permit aircraft in, you
might like to look at the attached letter. I shall of course have to get to
Holland in future by going straight across the 100 miles of N Sea from Essex
to somewhere like Middelburg!
Regards, David Joyce, G-XSDJ
Message 5
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Subject: | Re: Coax Advice for VHF antenna. |
Tony=0Ayou should put the dipole in anyway. We know it works, it radiates m
ore energy =0Ain a horizontal pattern (toroid as Frans says) so energy goin
g straight up or =0Astraight down isn't wasted. Half the radiation from a t
raditional aviation 1/4 =0Awhip goes straight up. You will need to trim it
to length using an SWR meter, =0Awhich you should be able to borrow. Not to
o difficult, Pity Kingsley is a bit =0Afar away!=0AMount it on the outside
of the fin spar and don't forget the ferrite toroids. =0ARun the cable stra
ight forward from the centre of the dipole to the leading edge =0Aof the fi
n then down. Bit of head scratching as to how you do that.=0AGraham=0A=0A
=0A=0A________________________________=0AFrom: Tony Renshaw <tonyrenshaw268
@gmail.com>=0ATo: europa-list@matronics.com=0ASent: Friday, 21 October, 201
1 1:23:31=0ASubject: Europa-List: Coax Advice for VHF antenna. =0A=0A--> Eu
ropa-List message posted by: Tony Renshaw <tonyrenshaw268@gmail.com>=0A=0AG
idday,=0AIve got a bit of a hybrid, a classic with a few bits of XS thrown
in. For =0Aexample I've got a sternpost, premanufactured that I was kindly
given, and I am =0Anow wondering if this is the structure I should be attac
hing my vertical VHF =0Aantenna to the front of. Now I've got the Europa ki
t, with torrodes or whatever =0Athey are called, and a bunch of COAX. I am
wondering if anyone has an opinion on =0Athe merits of building up this ant
enna or whether I should just bin it and use =0Athe Z shaped Bob Archer VHF
antenna that I also have, and put it on the side of =0Athe fuselage? I don
't figure it would hurt to give it a try, but am unsure if =0Athe Europa on
e is worth building, and if so, knowing nothing about COAX fittings =0Aatta
chment and being a lousy solderer, does anyone have any specific guidance.
=============
Message 6
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Subject: | Re: Belgian Airspace |
Well done David - let's hope that common sense prevails. You might like to
have added that those chosing to bypass Belgium could be persuaded to stop
and spend money in the Country if it were not for this charge.
I am surprised that this has not been taken up by the CAA/LAA/Charles
Strasser/AOPA or someone in that vein.
Regards
Steve
----- Original Message -----
From: "David Joyce" <davidjoyce@doctors.org.uk>
Sent: Friday, October 21, 2011 1:12 PM
Subject: Europa-List: Belgian Airspace
> For your amusement and so that you can see that I am doing my best to
> nudge
> Belgium into dropping its outrageous fee for letting Permit aircraft in,
> you
> might like to look at the attached letter. I shall of course have to get
> to
> Holland in future by going straight across the 100 miles of N Sea from
> Essex
> to somewhere like Middelburg!
> Regards, David Joyce, G-XSDJ
>
Message 7
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Subject: | Coax Advice for VHF antenna. |
I also found the Europa antenna perfectly satisfactory. Soldering the coax
fitting to the coax cable can be tricky so it is important to follow the
assembly instructions to the letter. They should be printed on a label
inside the packet containing the coax fitting. If you cannot find it let me
know and I will e-mail it to you. A crimped connector is much easier and
produces a more consistent result but you have to buy a crimp tool!
Brian Davies
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of danny shepherd
Sent: 21 October 2011 11:08
Subject: Re: Europa-List: Coax Advice for VHF antenna.
--> <danny@mcwalterscafe.co.uk>
Tony,
I fitted the Europa kit into the tail fin as per the "good book"
and find it works perfectly. Like you I'm pretty bad at soldering but it
wasn't too hard.
Danny G-ceri tri gear xs. funkwerk atr 833.
On 21/10/2011 01:23, Tony Renshaw wrote:
> --> Europa-List message posted by: Tony
> --> Renshaw<tonyrenshaw268@gmail.com>
>
> Gidday,
> Ive got a bit of a hybrid, a classic with a few bits of XS thrown in. For
example I've got a sternpost, premanufactured that I was kindly given, and I
am now wondering if this is the structure I should be attaching my vertical
VHF antenna to the front of. Now I've got the Europa kit, with torrodes or
whatever they are called, and a bunch of COAX. I am wondering if anyone has
an opinion on the merits of building up this antenna or whether I should
just bin it and use the Z shaped Bob Archer VHF antenna that I also have,
and put it on the side of the fuselage? I don't figure it would hurt to give
it a try, but am unsure if the Europa one is worth building, and if so,
knowing nothing about COAX fittings attachment and being a lousy solderer,
does anyone have any specific guidance. Thank you in anticipation.
> Reg
> Tony Renshaw
> Sydney Aussie
>
>
Message 8
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Subject: | Re: Belgian Airspace |
X-mailer: Foxmail 6, 15, 201, 26 [cn]
Hello David,
I agree totally they are "Donkeys herd" and they confirm with her political situation
since one year!
Michel AUVRAY
Message 9
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Subject: | Re: Belgian Airspace |
Bravo, David et bon chance.
Goff
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=355657#355657
Message 10
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Subject: | 912s Rough Running |
Problem
solved! Many thanks to those responded with a variety of good advice. A gre
at
team effort enabled me to return to the aeroplane equipped with a comprehen
sive
list of potential causes and solutions. I was able to quickly work through
the
list until I found the problem and fixed it.
>From the
team I am able to award =93The Man of the Match=94 to Neil France for his
recollection that he knew someone who had a similar problem caused by a bad
earth to the ignition solenoids and sleeves=94.
Whilst
re-installing the engine I had replaced the fuel pipes and the carb heat pi
pes
before reconnecting all of the earth leads. This left no room to replace th
e
earthing screw and leads in the original position. No problem! I connected
the
battery earthing loom to a more convenient position on the engine=2C and th
e ignition
earths to another handy position.
Retrospectively=2C
I can see that the group of ignition connectors alone are thinner than the
original group=2C and somewhat oxidized at that. The earthing screw had
shouldered before clamping the earth leads causing an inadequate earth.
Easy when
you know how=2C isn=92t it?
I did find
the info. sent to me really useful=2C and I have it in mind to create a flo
w
chart from it all=2C which others may find useful with fault finding for ro
ugh running in the
future. It is more common than I thought.
Thanks to
Ivor Phillips=2C Bob Harrison=2C Duncan McFadyean=2C Dave Watts=2C and Barr
y Tennant.
Message 11
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Subject: | Re: Toe vs Finger Brakes |
Hi Juergen,
Our levers have been extended by almost 10cm. We don't have either access
via the cockpit, so access is almost acrobatic via underneath...
Good luck!
Max Cointe
F-PMLH TriGear Kit #560
912ULS Airmaster 400 hours
-----Message d'origine-----
De: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] De la part de europapa
Envoy: jeudi 20 octobre 2011 21:40
: europa-list@matronics.com
Objet: Europa-List: Re: Toe vs Finger Brakes
Hello Max and Ian,
thank you so much for your support.
So much specific know how in just two replies!
Today I inspected my brake setup and found it like Max expected.
The toe brakes have been converted. That means screwed together and fixed
anyhow.
First I will try to adjust the fluid quantity. and perhaps will build longer
levers.
But the first problem I have to solve is getting access to the lock screws
as there is no opening in the cockpit.
All in all not a big peace of engineering.
Will come back to you.
Thank you again
Juergen
Kit 161
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=355589#355589
Message 12
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Subject: | 912s Rough Running |
Bryan, glad you got it sorted, I take it that when you say
bad earth to the ignition solenoids and sleeves,
that you mean the black earth wires from the four ignition coils to the
bolt on the manifold ?
Paul.
Message 13
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Subject: | 912s Rough Running |
Yes! Bryan
> From: paul@wilsonnet.flyer.co.uk
> To: europa-list@matronics.com
> Subject: Europa-List: 912s Rough Running
> Date: Fri=2C 21 Oct 2011 18:23:05 +0100
>
.uk>
>
> Bryan=2C glad you got it sorted=2C I take it that when you say
>
> bad earth to the ignition solenoids and sleeves=2C
>
> that you mean the black earth wires from the four ignition coils to the
> bolt on the manifold ?
>
> Paul.
>
>
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