Today's Message Index:
----------------------
1. 03:03 AM - Retention of all your aircraft paperwork Ex. PFA Records. (R.C.Harrison)
2. 03:50 AM - Tow bars (Steven Pitt)
3. 04:21 AM - FW: DOTH Branscombe Sunday 31 July (Alan Burrows)
4. 09:45 AM - Tacho problem (Richard Iddon)
5. 12:11 PM - Re: Tacho problem (Duncan McFadyean)
6. 12:31 PM - Re: Radio reception problems (Mike Parkin)
7. 01:04 PM - Re: Radio reception problems (Carl Pattinson)
8. 02:43 PM - Monopole Antenna for Troubleshooting (Bryan Allsop)
9. 02:51 PM - Re: Radio reception problems (Bryan Allsop)
Message 1
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Subject: | Retention of all your aircraft paperwork Ex. PFA Records. |
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@tiscali.co.uk>
Hi! All Europa UK owners.
Re:- PFA HARD COPY DOCUMENTS OF PERMIT TO FLY AIRCRAFT. YOUR ACTION
REQUIRED NOW
It seems I have been asleep or perhaps otherwise focused!
A long time friend first acquainted in the Florida Flight Training
School we shared, has kindly sent me a message originally intended to
all Vintage Piper Club Members.
This message is to all owners of Permit to Fly Aircraft and basically
confirms that should you wish to pay =A320 to the PFA they will send you
all hard copy documents related to your aircraft since they are going
computerised and otherwise will destroy the said documents.
It seems the deadline for applications was originally set for 31st July
(Sunday) this is now understood to be September 1st.
My =A320 is paid and I=92m waiting but not holding my breath!
Regards
Bob Harrison G-PTAG
Message 2
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--> Europa-List message posted by: "Steven Pitt" <steven.pitt2@ntlworld.com>
Does anyone use a towbar with their Europa XS Trigear and can share experiences
with me. I am looking at the Cessna lever action Spring loaded bar and possibly
changing the lugs to fit the nose gear bolt.
Any advise please will be truly welcome.
Steve Pitt #403
Message 3
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Subject: | DOTH Branscombe Sunday 31 July |
--> Europa-List message posted by: "Alan Burrows" <alan@kestrel-insurance.com>
Anyone else going to Branscombe on Sunday ?
Alan
One of hte better Devon Strut fly-ins is this weekend at Branscombe.
Details at: http://www.sky4aviation.co.uk/sky4/index.html
Asides from flight to a nice strip in S. Devon and the other ativities
around the airfield (walks, cliffs, beach, pub, cream teas etc) there is
usually a stunning air display (last year two P51Ds amongst others).
You will need to PPR, be there probably before noon, and will be locked
in
during hte display (which is usually NOTAM'd).
Message 4
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--> Europa-List message posted by: "Richard Iddon" <riddon@sent.com>
The Rotax analogue tacho on my 912S started flickering about on my last
flight for no apparent reason. I have just test run the engine again
today and it has ceased working altogether. I have checked that there is
power going to it OK.
I looked in the archive and find that some people have swapped a couple
of wires around and solved the flickering problem but I can't work out
which wires they swapped round.
Can anyone enlighten me or offer any other solution to a duff tacho?
Richard Iddon G-RIXS
Message 5
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Subject: | Re: Tacho problem |
--> Europa-List message posted by: "Duncan McFadyean" <ami@mcfadyean.freeserve.co.uk>
Swap the two sensor wires that come off the tacho sensor on the back of the
engine. In theory this should make no difference; but apparently does on
occasion.
I had a similar problem that occurred on a non-ROtax tacho, whereby the
reading was stable until about 3500 rpm, then went completely off the scale.
Solved with a series resistor in the sensor leads, which presumably dampened
the "ringing" in the circuit that was probably causing the problem.
Sensor-gap against the magneto checked-out OK, but I suspect that playing
with that may have effected a cure too.
Duncan McF.
----- Original Message -----
From: "Richard Iddon" <riddon@sent.com>
Subject: Europa-List: Tacho problem
> --> Europa-List message posted by: "Richard Iddon" <riddon@sent.com>
>
> The Rotax analogue tacho on my 912S started flickering about on my last
> flight for no apparent reason. I have just test run the engine again
> today and it has ceased working altogether. I have checked that there is
> power going to it OK.
>
> I looked in the archive and find that some people have swapped a couple
> of wires around and solved the flickering problem but I can't work out
> which wires they swapped round.
>
> Can anyone enlighten me or offer any other solution to a duff tacho?
>
> Richard Iddon G-RIXS
>
>
>
Message 6
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Subject: | Re: Radio reception problems |
--> Europa-List message posted by: "Mike Parkin" <mikenjulie.parkin@btinternet.com>
>
> I looks as though the real problem lies in the low 120's frequency range,
> in
> the receive condition. The middle 130's range is a smaller problem in that
> we get a poor indistinct reception. In the lower 120's we get no reception
> at all at times.
>
> It is interesting that a number of correspondents are confirming the same
> phenomena. Undoubtedly there will be others who are watching but don't
> like
> to say anything, and there will be more who's aircraft never get exposed
> to
> the extremes where these characteristics display themselves.
>
> Best regards.
>
> Bryan
>
Bryan,
Is this a general problem, or is it only on the Icom 200 radio. It seems to
me that if different guys on different aircraft (ie installations) are
experiencing the same problem, then perhaps the type of radio is the common
factor here.
As an example, I have the now obsolete Appollo SL30 Nav/Com but have not
noticed any poor performance.
What is the experience of the owners of other makes of radio.
regards,
Mike
Message 7
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Subject: | Re: Radio reception problems |
--> Europa-List message posted by: "Carl Pattinson" <carl@flyers.freeserve.co.uk>
We have an Icom IC200, never had a problem with it transmission or reception
wise.
Aerial is the standard factory fit. We never had a chance to tune the aerial
but it works fine.
About two weeks did a radio check 30 miles from base at 2000ft and
recieving/ sending fives. 122.175 Turweston.
The built in ICOM intercom was a disaster so we have fitted an external
intercom so that we can squelch out the mic audio. Otherwise we get cockpit
noise fed back into the mic's through the amplifier. Only thing we needed to
do is turn down the gain on the electret mic's (small screw next to the
mouthpiece).
The benefit of this is that the incoming transmissions dont have to compete
with the amplified cockpit noise and are much easier to decipher (especially
with ANR headsets Shenheisser HME300)
Carl Pattinson
G-LABS
----- Original Message -----
From: "Mike Parkin" <mikenjulie.parkin@btinternet.com>
Subject: Re: Europa-List: Radio reception problems
> --> Europa-List message posted by: "Mike Parkin"
> <mikenjulie.parkin@btinternet.com>
>
>>
>> I looks as though the real problem lies in the low 120's frequency range,
>> in
>> the receive condition. The middle 130's range is a smaller problem in
>> that
>> we get a poor indistinct reception. In the lower 120's we get no
>> reception
>> at all at times.
>>
>> It is interesting that a number of correspondents are confirming the same
>> phenomena. Undoubtedly there will be others who are watching but don't
>> like
>> to say anything, and there will be more who's aircraft never get exposed
>> to
>> the extremes where these characteristics display themselves.
>>
>> Best regards.
>>
>> Bryan
>>
>
> Bryan,
>
> Is this a general problem, or is it only on the Icom 200 radio. It seems
> to
> me that if different guys on different aircraft (ie installations) are
> experiencing the same problem, then perhaps the type of radio is the
> common
> factor here.
>
> As an example, I have the now obsolete Appollo SL30 Nav/Com but have not
> noticed any poor performance.
>
> What is the experience of the owners of other makes of radio.
>
> regards,
>
> Mike
>
>
>
Message 8
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Subject: | Monopole Antenna for Troubleshooting |
--> Europa-List message posted by: "Bryan Allsop" <bryan@blackballclub.com>
Thanks for that Fred. I intend to give a try, if only for the fun of it, but
who knows, the answer may lie therein.
Please have a look at the attached sketch to see if I have interpreted
properly. If so, can you answer a couple of questions for me?
1. Can we use aluminium rod/tube instead of the copper wire. Using a
mechanical joint instead of a soldered one?
2. Would the various metal items in the rear of the fuselage degrade the
performance of the antenna if it is mounted behind the 'D' panel as
illustrated?
3. Would there be any mutual effect with the Transponder ariel quite close
by?
Best regards. Bryan
----- Original Message -----
From: "Fred Fillinger" <n3eu@comcast.net>
Subject: *** SPAM *** Europa-List: Monopole Antenna for Troubleshooting
> --> Europa-List message posted by: "Fred Fillinger" <n3eu@comcast.net>
>
> I've done this many times, for freqs other than VHF comm. Real
> slap-dash affairs with cardboard, wire, and duck tape. A few dB of
> antenna abuse is no problem if the avionics sitting on the right seat
> hot-wired to the cig lighter can still be adequately tested. Below is
> a more careful effort, and it should isolate antenna vs. receiver
> problems. It will be useful also to see if a 1/4-wave bent whip,
> pointed up or down, will work somewhere back in the fuselage. If it
> does, don't buy an actual aircraft antenna. Take foam blocks and gobs
> of RTV back there and permanently install!
>
> Go to a home improvement place or a good hdwe and buy solid copper
> wire; if insulated we can remove for soldering in a few places. #6
> wire works real well; #8 OK; even #10, but #6 is more wideband,
> roughly doubly better. The stiffness will help keep it seated in the
> right-seat pax area.
>
> Cut 5 lengths of the stuff to 21.5 inches each. A soldering pencil on
> the vertical element will show what a heat sink does, so hit the end
> of that good with a blue-flame torch and then melt a blob of solder
> onto it. The center conductor of RG-58 coax will go there. A blob
> you can solder to, not just a coating. Check it by glomping with
> pliers to see if it pops off easily. That means a cold joint.
>
> Take 1/2" or 3/4" wood stock, and cut a 1.5"-2" block. Drill a
> perpendicular hole in the center. At each corner, drill (by eye is
> OK) 45-deg holes for the ground plane legs. Angled inward toward the
> center hole. What we want is a ground plane of 4 equally spaced legs,
> angled 45-deg downward. 5-minute epoxy the legs in the block.
>
> Take a few feet of RG-58 terminated in a male BNC. "Pre-tin" the
> center conductor and solder it to the blob of solder of the prepared
> element. Feed this element into the center hole of the block and
> epoxy in place. To electrically connect the ground plane legs, strip
> insulation off about 12" of solid wire. Or strip common zip cord. On
> the bottom of the block, scrape the base of the 4 fence posts of
> copper for good electrical bond. Wind this wire tightly several times
> on each leg, and continue similarly around the fence posts. This wire
> is where the shield of the coax is soldered. Note, if to be
> permanently installed as mentioned, these junctions must be soldered.
>
> Blob silicone RTV to secure the center conductor, but not the solder
> joint, so usage of the contraption doesn't break the connection.
> Straighten all elements and adjust for about 45-deg on the ground
> plane legs. At a halfway point in the vertical element, bent it back
> only as needed so it fits in the airplane. It affects radiation
> pattern only, probably in a beneficial way.
>
> Incidentally, the 45-deg droop of the legs takes an antenna with a
> natural impedance of 37 ohms and makes it 50, which we want. However,
> it doesn't do that across the full band of interest, 118-137 MHz. So
> where a ground
> plane on a monopole antenna is constructed as a flat ground plane,
> 90-deg to the vertical element, it doesn't matter much. This is true
> also of a dipole, but there's no easy fix either.
>
> However, if #6 wire, this antenna could show "zero reactance" from
> about 120-130MHz, rather preferable in testing. When the receiver
> looks down the coax, it wants to see 50 ohms of any kind of resistor.
> A 50-ohm resistor which won't transmit squat, but merely get hot, will
> do. It has no clue as to an actual resonant antenna, or a combination
> of resistances. When reactance = 0, and SWR is minimal, virtually
> all electrons are sent heading for the hills.
>
> The remaining issue is interference with the antenna. An analyzer will
> report almost nothing by introducing any metal in the vicinity of the
> legs in the horizontal plane. There will be metal in the central
> tunnel, an you'll be sitting next to it, to unknown effect on
> radiation pattern, but hopefully not as bad as an installed antenna
> allegedly not working so good. You can also freely transmit on it, as
> there will be more radiation received by talking on a 3W handheld, due
> to distance, or on a cell phone for an hour for that matter.
>
> So all we need is to bring the comm receiver antenna coax out to a BNC
> in the cockpit. Re-route the existing antenna to cockpit. BNC/RG58
> patch cables are available cheap from allelectronics.com. Buy a
> female-female BNC coupler (Radio Shack in the States) to mate either
> your anorexic passenger or your recalcitrant dipole to the comm, and
> go test fly. Doesn't take long to build, and I'd be curious what
> results come back if someone so ventures. Can even be fun!
>
> Reg,
> Fred F.
>
>
>
Message 9
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Subject: | Re: Radio reception problems |
--> Europa-List message posted by: "Bryan Allsop" <bryan@blackballclub.com>
Mike,
Whilst most are Icom 200's, the problem does not seem to be limited to them.
Fred F is suggesting an antenna problem, maybe one which unique to the
manual's installation procedure.
At this time there are suggestions to offset the problem, but we have not
identified a positive fix.
Cheers Bryan
----- Original Message -----
From: "Mike Parkin" <mikenjulie.parkin@btinternet.com>
Subject: Re: Europa-List: Radio reception problems
> --> Europa-List message posted by: "Mike Parkin"
> <mikenjulie.parkin@btinternet.com>
>
>>
>> I looks as though the real problem lies in the low 120's frequency range,
>> in
>> the receive condition. The middle 130's range is a smaller problem in
>> that
>> we get a poor indistinct reception. In the lower 120's we get no
>> reception
>> at all at times.
>>
>> It is interesting that a number of correspondents are confirming the same
>> phenomena. Undoubtedly there will be others who are watching but don't
>> like
>> to say anything, and there will be more who's aircraft never get exposed
>> to
>> the extremes where these characteristics display themselves.
>>
>> Best regards.
>>
>> Bryan
>>
>
> Bryan,
>
> Is this a general problem, or is it only on the Icom 200 radio. It seems
> to
> me that if different guys on different aircraft (ie installations) are
> experiencing the same problem, then perhaps the type of radio is the
> common
> factor here.
>
> As an example, I have the now obsolete Appollo SL30 Nav/Com but have not
> noticed any poor performance.
>
> What is the experience of the owners of other makes of radio.
>
> regards,
>
> Mike
>
>
>
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