Today's Message Index:
----------------------
1. 02:07 AM - Fuel filtering (Graham Singleton)
2. 03:46 AM - Trailer questions (Ronald J. Parigoris)
3. 08:08 AM - Re: Batteries (Fergus Kyle)
4. 09:17 AM - LEDs (Fergus Kyle)
5. 11:41 AM - Re: Batteries (Fergus Kyle)
6. 12:20 PM - Re: Fuel filtering (Geoff Leedham)
7. 08:20 PM - Re: Batteries (Fred Fillinger)
Message 1
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--> Europa-List message posted by: Graham Singleton <graham@gflight.f9.co.uk>
At 23:56 20/06/2003 -0700, you wrote:
>Graham, although the Andair filter is well constructed I still had a problem
>at the beginning of this year with an almost complete blockage. I had added
>fuel from a couple of 10 litre metal fuel cans that I have used for the last
>few years.
Geof
Thanks for that, it's the sort of thing everyone needs to know.
Are you certain it was rust, it is sometimes possible to have mould growing
in the fuel, (fishing boat people call it a virus!) I know of one case but
that was a 2 stroke that had stood for a long time.
I hope you told Andair?
Graham
---
Message 2
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| Subject: | Trailer questions |
--> Europa-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
Easy way to protect exposed portion of wing spars when wings are living on trailer
exposed to UV?
Thanks
Ron Parigoris
Message 3
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--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
----- Original Message -----
From: "david joyce" <davidjoyce@beeb.net>
| Ferg, I have my single 16 amp hour gas recombinant Odyssey/ Hawker
Siddeley battery mounted on the shelf above passenger feet ahead of the fire
wall. It sits in a fabricated shallow fibreglass tray tied to firewall by a
nylon strap . The multistrand copper #4 leads to the 914 starter and engine
ground are very short and that combination spins the 914 to first time start
very convincingly in any weather. I was and still am very keen on having the
battery forward for efficiency and ease of access, and it has worked
flawlessly x 120 hrs. I am not one bit convinced of the need for a spare
battery. The plane carries on flying without a blink if you switch off
master and alternator switches! A spare hand held GPS seems a better bit of
back up kit. My weight and balance came out alright with this arrangement +
the Kremen C/S prop, although Cof G was more forward than ideal (58.5 ins),
and I ended up putting 3 lbs of lead on the sternpost to get it to what I
felt was ideal position of 59.00 ins. There would be room for two similar
batteries in that position and Bob Harrison has that arrangement with his
Jabiru engine.
Europa give suggested lay outs for fuel lines, and my out and
| return fuel lines fit nicely along the top R side of the tunnel ( mono,
XS).
| The considerable bundle of engine sensor lines run through a single1in.
hole in the firewall to the R of centre to meet upwith the back of my
Flydat, but I don't think there is anything critical about that. Best of
luck, David
David,
Thank you for your advice on the CoG and siting themes. I am
probably hyperventillating on the topic and appreciate your steadying
approach. In view of intention to add some ham radio items aft, this seems a
sober alternative. I will poll Europa regarding runs and sites as well
perhaps since I won't have FlyDat but plan a solidstate instrument bundle
and a few other devices.
I just made a short visit to UK, bundling old friends of
Ma-in-law (newly ensconced in a nursing home in Wilts) up and back to Devon
on the A303, so am now claiming champ familiartity with that artery....! I
managed to capture Nigel Charles between flights as was bunked in at
Woodborough but our paths were just abit impossible, so will try the west
country another time. Can't amke it for Kemble this time, but will be at
Oshkosh ate the Europa tent I hope.
Kindest regards to you both in that idyllic spot, and thanks
again for the thoughts.
Ferg
Message 4
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--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
Cheers,
...perhaps I haven't mentionned this before, but I have made
some personal changes in putting the fuselage together which may be of
interest to others in view of potential savings expected.
One aspect of electrics which is expensive of elec power is any
heating which becomes incidental to a system, as elec power can be a great
waste. The second is light - because incandescent filaments are [1]
delicate, [2] susceptible to vibration, [3] susceptible to rapid
temperature
change, [4] occasionally hard to find, [5] burn hot and [6] are relatively
expensive to acquire.
LEDs - light emitting diodes - on the other hand are relatively
cheap, have a vast assortment, last up to 100,000 hours, 'burn' cool(ly),
and are light and easy to install.
One trick - is the production of sufficient light in all those
dicey black holes like the belly panels or the rear fuselage
areas -especially on a hot summer's sunny afternoon. The answer is a small
but powerful flood of light from a few LEDs. I have drilled a few 5mm holes
behind the seats and plugged in several floodlight LED bulbs. These are
wired to a convenient site for the attachment to a migrant 9V battery top
filched from a used 9V unit waiting for disposal. It then means that if
attention is needed in a dark and lonely cave, one has only to acquire the
battery top site, plug in a 9volter from the pocket and have at it. When
done, just replace the panel, pull the battery ands pocket it and put back
whatever cover exists. One battery serves all, and it's light and
relatively
omnipresent.
It must be noted that the inclusion of this requires some math,
because LEDs need a general 1.5Vdc each and use only 20-50 milliamps of
'tricity (another two great qualities), so multiple or single
installations,
or (undescribed) increase in brightness needs precalculation and inclusion.
The reason I bring this up is the immense increase in
efficiency
which LEDs bring to the trade. You may have seen these little keyring lamps
and their utility. The changes being rung regarding the amazing units is
astonishing and I can see where LEDs will provide future lighting needs
almost exclusively. i will be using only them in my Europa.
If you cannot determine the math required for including same in
your application, I can provide it, or if there's a giant clammering for it
will write further but in the interim may I draw attention to:
http://www.rst-engr.com/kitplanes/ and seek down to Sept 2000 for
magazine articles, then browse the topic. Jim Weir gets full marks for
making a number of electronic items patently clear to us. You will see that
LEDs can accept a maximum current before blatting antimony all over your
wallpaper but will tolerate an Average current which permits us to
forestall their early intolerance by modulating the time constants.
More bright for little pain - thus allowing cheaper versions. It's magic!
Good luck
Ferg
feedback invited
Message 5
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--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
| Hi Ferg and all.
|
| I have a 914 nearing installation - I'm also begging for the same info!
|
| Hans.
Hans, you have no return address......!
Ferg
Message 6
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| Subject: | Re: Fuel filtering |
--> Europa-List message posted by: "Geoff Leedham" <geoff@gleedham.freeserve.co.uk>
----- Original Message -----
From: "Graham Singleton" <graham@gflight.f9.co.uk>
Subject: Europa-List: Fuel filtering
> --> Europa-List message posted by: Graham Singleton
<graham@gflight.f9.co.uk>
>
> At 23:56 20/06/2003 -0700, you wrote:
> >Graham, although the Andair filter is well constructed I still had a
problem
> >at the beginning of this year with an almost complete blockage. I had
added
> >fuel from a couple of 10 litre metal fuel cans that I have used for the
last
> >few years.
>
> Geof
> Thanks for that, it's the sort of thing everyone needs to know.
> Are you certain it was rust, it is sometimes possible to have mould
growing
> in the fuel, (fishing boat people call it a virus!) I know of one case but
> that was a 2 stroke that had stood for a long time.
> I hope you told Andair?
> Graham
Graham
It was definitely rust. I checked with a magnet and it stuck. Also I wiped a
finger on the inside of the can which left the same brown stain on my
finger.
I have not informed Andair but will drop them an e mail
Regards
Geoff Leedham G-Eofs 914 Trigear
Message 7
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--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
> I am not one bit convinced of the need for a spare
> battery. The plane carries on flying without a blink if you switch off
> master and alternator switches!
That's because it's wired as it's supposed to be! It's picking off
regulator current before fed to the bus, but it's not redundant. If one
has a battery relay, and the alternator/regulator fails, and the overall
problem is such the battery must be disconnected, the engine will quit.
There's no way to wire the 914 pumps to any single electrical system
which would meet current FAA rules, were this a production A/C. It's
also interesting to note that this is a relaxation of the rule prior to
1965, since way back then one pump must have been engine-driven. Now
redundant electrical pumps are permitted if there's two independent
sources of power (spelled batteries).
One partial solution is to wire one pump "off-master" - direct to
battery. Satisfactory if one will never leave the A/C with it still
switched on. Not an independent source of power, but redundant if the
rest of the electrical system has failed and battery still good.
For full compliance the FAA has approved, as a separate independent
power source, a simple pack of dated alkaline "D" cells. I believe this
will provide enough alternate power to a pump to get to some nearby
airport if the main electrical system has smoked.
Not trying to convince; just suggestions for any builder considering
options.
Fred F.
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