Today's Message Index:
----------------------
1. 02:41 AM - Electrics (Peter Field)
2. 04:28 AM - Re: Electrics (Bob Harrison)
3. 06:26 AM - Re: Electrics (Peter Jeffers)
4. 07:23 AM - Re: Rear Wing Pins W 24 (Tyler)
5. 10:10 AM - Re: Electrics (Frans Veldman)
6. 12:20 PM - Running too cool, considering blocking some of intake (graeme bird)
7. 05:03 PM - tri gear socket installation (fireflier)
8. 05:48 PM - Re: tri gear socket installation (craig)
Message 1
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Does anybody know what retains the cables pushed into the terminal block
(see photo)? The ignition circuit kill wires are the two white cables
and we have had some trouble with these not making a good connection.
There are rubber grommets that fit around the wires and appear to be the
only means of securing a contact by applying pressure to the cable when
fitted inside the block.
Peter Field. G-CHOX
Message 2
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Hi! Peter, The grommets are to stop the ingress of water and maintain the
wire central, so mine are mounted vertically, perhaps that would help ?
I presume that you have a tang crimped to the wire which engages in the slot
in the socket from memory?
Regards
Bob Harrison.
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Peter Field
Sent: 24 November 2012 10:39
Subject: Europa-List: Electrics
Does anybody know what retains the cables pushed into the terminal block
(see photo)? The ignition circuit kill wires are the two white cables and we
have had some trouble with these not making a good connection. There are
rubber grommets that fit around the wires and appear to be the only means of
securing a contact by applying pressure to the cable when fitted inside the
block.
Peter Field. G-CHOX
Message 3
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Hi Pete,
I can see from your photo that these white wires are not pushed fully home.
You will notice that each of the other wires in the plastic multi connector
shows two black/dark coloured parallel strips just inside where they enter
the connector block. These are water seals. If you now look at your two
offending white wires these strips do not look the same because they are not
fully pushed home.
So the answer to your question is to push them further in. You will find
that they pop into place when in the correct position and should then look
like the other wires.
Give it a try, think you will find this fixes your problem.
Pete
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Peter Field
Sent: 24 November 2012 10:39
Subject: Europa-List: Electrics
Does anybody know what retains the cables pushed into the terminal block
(see photo)? The ignition circuit kill wires are the two white cables and we
have had some trouble with these not making a good connection. There are
rubber grommets that fit around the wires and appear to be the only means of
securing a contact by applying pressure to the cable when fitted inside the
block.
Peter Field. G-CHOX
_____
No virus found in this message.
Checked by AVG - www.avg.com
Message 4
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| Subject: | Re: Rear Wing Pins W 24 |
Thank you for the information.
On Nov 22, 2012, at 2:04 PM, K BURNS <kjburns@btinternet.com> wrote:
> Tyler,
>
> Re Wing pins, W 24, I recently replaced the W 24 wing pins on my Europa XS
, and was surprised at the increased length of the threaded portion of the p
in that arrived. (Approx 3 times longer than removed pins).
>
> I rang Karen at the Europa factory to check that the part was of the corre
ct specification.
>
> The reply was that the long pin was now standard , as supplied for the mod
52 (classic wing) modification, ie the pin is long enough to pass through t
he mounting plates, and after cutting a hole in the underside (of the classi
c) wing a flox resin pad is created under a washer and nylock nut, hence the
longer thread.
>
> So a check assembly (dry run) should confirm if the installed pin length w
ill allow the nut and washer to all fit.
>
> Or ring Karen first at the Europa factory and ask if the pins they stock a
re the same size as the pin you have ( and the current part number) she is v
ery helpful .
>
> PS when you go ahead get your inspectors sign off before you close up the a
ccess hole !
>
> Regards
>
> Kevin
>
> From: Tyler J <helidogtyler@gmail.com>
> To: Europa-List@matronics.com
> Sent: Thursday, 22 November 2012, 19:35
> Subject: Europa-List: Rear Wing Pins
>
> I just recently purchased a partially completed monowheel "classic" kit. T
he rear wing pins have not been installed and I have all the parts for Mod 5
2. The pins with the Mod are sized W24/4 and because I was unsure whether t
hey were the original W24 pin or new, I test fit them into the socket assem
bly W26A,B,C and they fit perfectly. However, in reading Mod 74, it lists t
he pins as W24/7. When reading Mod 52, in the body of the text talking abou
t socket assembly, it relates the new W24/5 pin should be test fit. So, can
someone tell me the difference between the W24/7, W24/5 and W24/4 terminolo
gy as it relates to the pins? I know it is proabably a simple answer for th
is esteemed group, but I appreciate any info as I am trying to increase my k
nowledge of this wonderful aircraft.
>
> Tyler J.
> http://www.matronics.com/contributuropa-List" rel="nofollow" target="_
blank">http://www.matronics.com/Nav.matronics.com/" rel="nofollow" target=
"_blank">http://forums.matronics===============
==
>
>
>
>
>
==========================
=========
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=========
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=========
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=========
>
Message 5
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On 11/24/2012 11:39 AM, Peter Field wrote:
> Does anybody know what retains the cables pushed into the terminal block
> (see photo)? The ignition circuit kill wires are the two white cables
> and we have had some trouble with these not making a good connection.
Apart from that they are not pushed fully home, as some others have
mentioned, I see a few more worrying things.
First, these wires should go to your ignition-switch and nowhere else.
But within a very short distance I see a screw terminal (which are
invented to connect lamp sockets to your house wiring - vibration free
-, but are totally unsuitable for car purposes, let alone aircraft
purposes), and some (soldered) connection within a shrink tube. Why is
there not just a straigth cable going to your ignition switch? This is
just asking for trouble, and it looks like your trouble already started.
The vast majority of electrical failures are due to bad connections, so
you should keep the amount of connections down to the absolute minimum,
and where unavoidable, use high quality connectors (and houshold screw
terminals do not in the least qualify for this).
Furthermore it looks like some bare metal wires are poking out of the
wires coming out of the screw terminal. I'm not sure what I'm seeing
here but if these metal wires are connected to the ignition wire, they
just have to touch anything and your ignition is killed.
To elaborate more on connectors: The problem with these screw terminals
is that they do not separate the electrical and mechanical connection.
An electrical connection (clamping) creates a stress point in the metal,
and any movement (vibration) focuses on this stress point using the rest
of the wire as a lever, quickly causing metal fatigue and unexpected and
unpredictable break of the wire. A good connector always has some way to
retain the wire upstream of the electrical connection, so that the
electrical connection point is absolutely free from any movement. (This
also applies to soldering: Any solder joint should be free from any
movement and vibration).
For connecting a lamp socket to your house wiring that screw terminal is
ok, because houses do not move or vibrate very often.
If you ever have a carb going bad and your engine starts to shake or
vibrate heavily, within a few minutes the wire will fall from the screw
terminal. When that happens, the wire will dangle down and if it touches
some metal it will kill the ignition.
Frans
Message 6
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| Subject: | Running too cool, considering blocking some of intake |
My 912ULS runs too cool at around 80deg C, as I have the cowl home I am wondering
about blocking some of the radiator air intake off, maybe half of it and adding
a couple of LED landing lights. Some sort of variable vent might be best
though. Any suggestions?
--------
Graeme Bird
G-UMPY
Mono Classic/XS FWFD 912ULS/Woodcomp 3000/W
Newby: 35 hours
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=388801#388801
Message 7
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| Subject: | tri gear socket installation |
Hello
Today I have been busy trial fitting my gear sockets. but I have got a problem
and wondered if anyone has experience this during building and how they have overcome
it?
After taking my time setting everything up as per the build manual I inserted the
gear legs and sockets into the holes clamping the axle's in position against
angled bar with the axle center line on fuselage station 70 and the axle end
36.75' from the fuselage center line. With all this set up the socket flanges
are approx 13 - 15 mm of the fuselage.
I tried altering the fuselage underside to ground height but this made very little
difference to the distance between socket flanges and the fuselage. I managed
to get the gap down to approx 5-8mm by reducing the fuselage underside to
ground height to 395mm, this is very different to the 413mm quoted in the build
manual.
I have attached some photos showing the gap between sockets and fuselage and also
the position of the socket tubes within the baggage bays when inserted.
Any comments or solutions to my problem would be much appreciated.
Many thanks for taking the time in trying to help me find a solution to the problems
I'm experiencing.
Kind regards
Donald
--------
Fireflier
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=388820#388820
Attachments:
http://forums.matronics.com//files/port_axle_494.jpeg
http://forums.matronics.com//files/starboard_axle_172.jpeg
http://forums.matronics.com//files/starboard_socket_position_in_baggage_bay_539.jpeg
http://forums.matronics.com//files/starboard_leg_socket_188.jpg
http://forums.matronics.com//files/port_socket_position_in_baggage_bay_886.jpg
http://forums.matronics.com//files/port_leg_socket_744.jpeg
Message 8
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| Subject: | tri gear socket installation |
How long are your sockets from the bolt hole, to bottom of the tube, at the
rear of the socket eg near the tail
Mine measure at 245mm (9.5 inches), perhaps yours are longer than they
should be.
My gap when installed was about 4mm.
Regards
craig
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