Today's Message Index:
----------------------
1. 12:59 AM - Re: Europa covers wanted (Nigel Charles)
2. 12:59 AM - Re: Batteries (Nigel Charles)
3. 04:59 AM - Re: LEDs (Fred Fillinger)
4. 05:00 AM - Re: LEDs (Fred Fillinger)
5. 08:20 AM - Re: Europa covers wanted (Chuck Popenoe)
6. 08:48 AM - Control locks (Cripps, David)
7. 09:41 AM - Re: Batteries (Fred Fillinger)
8. 11:03 AM - Re: Control locks (R.C.Harrison)
9. 11:45 AM - Re: Project wanted (Dave Simpson)
10. 11:52 AM - Re: Europa covers wanted (Ian Mansfeld)
11. 12:20 PM - Re: LEDs (irampil@notes.cc.sunysb.edu)
12. 12:23 PM - Re: Project wanted (Simon Smith)
13. 12:36 PM - Re: Batteries (Jos Okhuijsen)
14. 01:02 PM - Re: Europa covers wanted (Ami McFadyean)
15. 01:42 PM - Re: LEDs (Jos Okhuijsen)
16. 02:02 PM - offer (Jos Okhuijsen)
17. 02:47 PM - Failures (Fergus Kyle)
18. 03:49 PM - Re: Failures (Jos Okhuijsen)
19. 05:06 PM - Re: Batteries (Fred Fillinger)
20. 07:00 PM - Re: Batteries true or false? (Ronald J. Parigoris)
21. 11:14 PM - Re: offer (R.C.Harrison)
Message 1
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Europa covers wanted |
--> Europa-List message posted by: "Nigel Charles" <nigelcharles@tiscali.co.uk>
>Help! Due to ownership changes at our airfield, I am losing my Europa's
hangar space and will need to park outside on the grass for the foreseeable
future.
Does anyone have a set of full outdoor covers for a Europa Classic that I
could borrow/hire/buy until the situation is resolved? I have a reflective
cockpit cover but would really like to cover the whole thing up, as much to
keep prying fingers off, as to keep it snug from our wet coastal weather.<
Hi David
Sorry to hear of your hangarage problem. Sorry also I can't help in a direct
manner. I use a triple trailer arrangement and wondered whether for the
longer term you had considered this arrangement. It houses the aircraft
fully rigged and the aircraft can be removed from it in 2 minutes and
rehoused in 4.5 minutes. The design was my own but I got David Schofield
(glider trailer manufacturer) to make it for me. It gives me all the
advantages of hangarage with (in my case) nil running costs. Even if you pay
for tie down the difference should pay for the cost of the trailer in a
reasonable time. If you want more details let me know.
Nearly met up with Ferg the other day but our schedules interfered. He was
hoping to look at the strip and trailer hangar. Never mind maybe next time.
If you wish to fly in here you will be most welcome. I do make it PPR so
give me a ring if you are interested (01380 860620). The strip is 790m long
so apart from a few obstructions and complying with my self imposed noise
abatement procedures you should find it very easy. The strip is pretty
smooth (much better than Popham).
Regards
Nigel Charles
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: "Nigel Charles" <nigelcharles@tiscali.co.uk>
>Not sure what the single failure mode is here that would cause such grief.<
The only one I can think of is voltage runaway of the regulator cooking the
battery. This is adequately taken care of by fitting a 'Crowbar Unit' as
described by Bob Nuckolls. I would suggest that any Europa reliant on the
electrical system for the engine to run (ie. Rotax 914 or Subaru) has one of
these fitted.
Nigel Charles
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
irampil@notes.cc.sunysb.edu wrote:
>
> Another approach might be:
> no more than 2 leds in series
But if powered by the aircraft's electrical system, current will be
dissipated as heat, making it more efficient to merely add more LED
candlepower. Or power it with a switching regulator. But talk about a
Rube Goldgerg machine of madly switching transistors just to make it
appear brighter. :-)
Fred F.
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
Jos Okhuijsen wrote:
> If the length of the wiring comes anything close to the wavelength, half
> or quarter of the comm freq's, adding a working antenna to this
> transmitter design, you might be a nuisance to anything in quite a
> reasonable range in addition to your own problems. Bypass capacitors?
> Will load (overload?) the square wave generator.
A series inductor feeding the switched LED will probably be the most
effective, and if toroidal it won't itself radiate much. Not sure, but
I also don't think whether the wiring is a tuned element makes much
difference due to "near field" effect. It's a different electrical
phenomenon from RF waves some distance away and beyond.
Fred F.
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Europa covers wanted |
--> Europa-List message posted by: "Chuck Popenoe" <cpops@verizon.net>
Nigel-
I for one, and I suppose that others in the forum would love to have more
details and photos of your hangar/trailer. Please write it up and put it on
the Europa Club Mods page.
Pops
A036
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Nigel Charles
Subject: Re: Europa-List: Europa covers wanted
--> Europa-List message posted by: "Nigel Charles"
--> <nigelcharles@tiscali.co.uk>
>Help! Due to ownership changes at our airfield, I am losing my Europa's
hangar space and will need to park outside on the grass for the foreseeable
future.
Does anyone have a set of full outdoor covers for a Europa Classic that I
could borrow/hire/buy until the situation is resolved? I have a reflective
cockpit cover but would really like to cover the whole thing up, as much to
keep prying fingers off, as to keep it snug from our wet coastal weather.<
Hi David
Sorry to hear of your hangarage problem. Sorry also I can't help in a direct
manner. I use a triple trailer arrangement and wondered whether for the
longer term you had considered this arrangement. It houses the aircraft
fully rigged and the aircraft can be removed from it in 2 minutes and
rehoused in 4.5 minutes. The design was my own but I got David Schofield
(glider trailer manufacturer) to make it for me. It gives me all the
advantages of hangarage with (in my case) nil running costs. Even if you pay
for tie down the difference should pay for the cost of the trailer in a
reasonable time. If you want more details let me know.
Nearly met up with Ferg the other day but our schedules interfered. He was
hoping to look at the strip and trailer hangar. Never mind maybe next time.
If you wish to fly in here you will be most welcome. I do make it PPR so
give me a ring if you are interested (01380 860620). The strip is 790m long
so apart from a few obstructions and complying with my self imposed noise
abatement procedures you should find it very easy. The strip is pretty
smooth (much better than Popham).
Regards
Nigel Charles
advertising on the Matronics Forums.
Share: Share photos & files with other List members.
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: "Cripps, David" <david.cripps@spsystems.com>
Does anyone have good designs for control locks for the Europa? Now that I am banished
outdoors on the windy coast, I'm having to give such things consideration.
I'd prefer some sort of design that fitted on to the wings/tail directly.
I figure that this is more secure than simply locking the control column/pedals
in one position since even with the column/pedals fixed, the wind can still
blow the control surfaces around and rattle the control runs and loosen the
joints and pins.
I can see how to secure the ailerons (with a sort of V-shaped hat that would go
over aileron/flap/part of wing), but the tailplanes and rudder look to be more
difficult to hold in position externally.
Any thoughts?
David
Visit SP at stand D103 at the European Wind Energy Conference, Madrid, Spain, 16th
- 19th June 2003
**********************************************************************************************
All sales of goods are subject to the terms and conditions of sale (the Conditions)
of SP Systems (the Company) which are available on request from the Company
or may be viewed on our Website (http://www.spsystems.com).
Any advice given by the Company in connection with the sale of goods is given
in good faith but the company only warrants that advice in writing is given with
reasonable skill and care. All advice is otherwise given subject to the Conditions.
The contents of this message and any attachments are confidential and
are intended solely for the attention and use of the addressee only.
Information contained in this message may be subject to legal,
professional or other privilege or may otherwise be protected by other
legal rules. This message should not be copied or forwarded to any other
person without the express permission of the sender. If you are not the
intended recipient you are not authorised to disclose, copy, distribute
or retain this message or any part of it.
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
david joyce wrote:
> ...It is entirely reasonable to allow for one unlikely event, but
> the odds of two unlikely independent events happening simultaneously
> are such that I am happy to use gliding for the back up mode.
Agree but ever play with the actual math? [I think fwg is correct!]
Consider a case, familiar with automobiles, where the battery starts the
engine, but for the trip back home it's dead. Assume the odds of this
are 200/1, to include possible poor system design, fabrication, or
maintenance, but whether accurate will be shortly seen as irrelevant.
Assume also the average flight is 1 hour for simpler math. If the odds
of either alternator or regulator failure are one in 1,000 hours, then
the odds of both charging system and battery failure are one in 200,000
for each flight. Sounds good but...
Over say 500 hours of airframe time for one's flying the plane, we're
down to 400/1 for the chances of being caught someday, some year not
knowing how long further flight is possible on the 914 if it's running
at all. Reflecting also the odds of all other system failures causing a
serious in-flight problem, the overall odds grow shorter. This
phenomenon is evident in accident data, where builders too often do
things for critical systems the FAA would not approve, and system
failures occur at very low airframe times.
Consider now two independent alternator/battery systems. Or that the
odds of an emergency battery pack failing is also 200,000/1. The odds
of both systems failing becomes 40 billion/1, making it irrelevant
whether 200/1 odds on battery failure may be too low, because over the
assumed years of flying it's still 80 million/1. A far cry from 400/1.
For this reason, seems FAA may not make failure probabilities
controlling for approval if full redundancy is provided (per AC 23.1309-1C).
Regards,
Fred F.
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
Hi! David.
I use an item copied from someone for the rudder. Take a length of the
c/heating pipe insulation, split it completely in two put a cable clip round
both ends of the two halves and the lot drops over the fin and rudder. With
a couple of clothes hanger hooks on some very light bungee hook the centres
into the trim drive slots to save it blowing off. Very light and therefor
good for travel and away landings. Can't see why the same wouldn't do for
the wing ends to cater for the airlerons also. Then just use the pilots
harness to stop the tail plane flapping. Make sure the hooks aren't in
conflict with the tail plane though.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Cripps,
David
Subject: Europa-List: Control locks
--> Europa-List message posted by: "Cripps, David"
<david.cripps@spsystems.com>
Does anyone have good designs for control locks for the Europa? Now that I
am banished outdoors on the windy coast, I'm having to give such things
consideration. I'd prefer some sort of design that fitted on to the
wings/tail directly. I figure that this is more secure than simply locking
the control column/pedals in one position since even with the column/pedals
fixed, the wind can still blow the control surfaces around and rattle the
control runs and loosen the joints and pins.
I can see how to secure the ailerons (with a sort of V-shaped hat that would
go over aileron/flap/part of wing), but the tailplanes and rudder look to be
more difficult to hold in position externally.
Any thoughts?
David
Visit SP at stand D103 at the European Wind Energy Conference, Madrid,
Spain, 16th - 19th June 2003
****************************************************************************
******************
All sales of goods are subject to the terms and conditions of sale (the
Conditions)
of SP Systems (the Company) which are available on request from the Company
or may be viewed on our Website (http://www.spsystems.com).
Any advice given by the Company in connection with the sale of goods is
given
in good faith but the company only warrants that advice in writing is given
with
reasonable skill and care. All advice is otherwise given subject to the
Conditions.
The contents of this message and any attachments are confidential and
are intended solely for the attention and use of the addressee only.
Information contained in this message may be subject to legal,
professional or other privilege or may otherwise be protected by other
legal rules. This message should not be copied or forwarded to any other
person without the express permission of the sender. If you are not the
intended recipient you are not authorised to disclose, copy, distribute
or retain this message or any part of it.
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Dave Simpson <dave_simpson@londonweb.net>
Simon,
Did you find a Europa?
Dave
-----Original Message-----
From: Simon Smith [SMTP:jodel@tiscali.co.uk]
Subject: Europa-List: Project wanted
--> Europa-List message posted by: "Simon Smith" <jodel@tiscali.co.uk>
Hi all,
I'm looking for an unfinished Europa in the UK. Classic or XS. Mono or
Tri.
Cheers
Simon
jodel@tiscali.co.uk
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Europa covers wanted |
--> Europa-List message posted by: "Ian Mansfeld" <ian_mansfeld@lineone.net>
I can't offer you any covers, but if you want to get some, I can fully
recommend the ones by Jaxida. They are waterproof yet porous to air and with
an inner material that promotes a self polishing actionin the wind.The fit
is excellent and they turn into their own stowage & carry bags. Not cheap at
about 1200, but IMHO the best. Try www.jaxida.com.
Ian.
----- Original Message -----
From: "Cripps, David" <david.cripps@spsystems.com>
Subject: Europa-List: Europa covers wanted
> --> Europa-List message posted by: "Cripps, David"
<david.cripps@spsystems.com>
>
> Help! Due to ownership changes at our airfield, I am losing my Europa's
hangar space and will need to park outside on the grass for the foreseeable
future.
>
> Does anyone have a set of full outdoor covers for a Europa Classic that I
could borrow/hire/buy until the situation is resolved? I have a reflective
cockpit cover but would really like to cover the whole thing up, as much to
keep prying fingers off, as to keep it snug from our wet coastal weather.
>
> Any help gratefully received.
>
> David
>
> GBWJH
>
>
> Visit SP at stand D103 at the European Wind Energy Conference, Madrid,
Spain, 16th - 19th June 2003
>
>
****************************************************************************
******************
> All sales of goods are subject to the terms and conditions of sale (the
Conditions)
> of SP Systems (the Company) which are available on request from the
Company
> or may be viewed on our Website (http://www.spsystems.com).
>
> Any advice given by the Company in connection with the sale of goods is
given
> in good faith but the company only warrants that advice in writing is
given with
> reasonable skill and care. All advice is otherwise given subject to the
Conditions.
>
> The contents of this message and any attachments are confidential and
> are intended solely for the attention and use of the addressee only.
> Information contained in this message may be subject to legal,
> professional or other privilege or may otherwise be protected by other
> legal rules. This message should not be copied or forwarded to any other
> person without the express permission of the sender. If you are not the
> intended recipient you are not authorised to disclose, copy, distribute
> or retain this message or any part of it.
>
>
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
06/24/2003 03:20:26 PM,
Serialize complete at 06/24/2003 03:20:26 PM
--> Europa-List message posted by: irampil@notes.cc.sunysb.edu
Hi Jos,
Just a second here :-)
You mean to say that 0.01mfd ceramic caps are going to load down the pwm?
whoaaaaaa!
You mean to seriously post that a 4th harmonic of 10kHz (i.e., 40 kHz on a
vhf tuned dipole is going to do anything at all? whoaaaa.
You think that even running close and parallel, that a 10 volt (15 ma)
current parallel to the antenna for the whole length of the plane is going
to
induce 750 ma in the antenna? whoaaaaaaaa
Don't take me too seriously, but I used to play an engineer on TV (slow
scan TV that is)
Ira
Jos Okhuijsen <josok@ukolo.fi>
Sent by: owner-europa-list-server@matronics.com
06/24/03 02:40 AM
Please respond to europa-list
To: europa-list@matronics.com
cc:
Subject: Re: Europa-List: LEDs
--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
Some simple math:
4 harmonics -> 4 x 3 db = -12 db
12 V -12 dB = 750 mV over any wiring carrying the load.
If the length of the wiring comes anything close to the wavelength, half
or quarter of the comm freq's, adding a working antenna to this
transmitter design, you might be a nuisance to anything in quite a
reasonable range in addition to your own problems. Bypass capacitors?
Will load (overload?) the square wave generator.
Jos Okhuijsen
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: "Simon Smith" <jodel@nildram.co.uk>
Yes I did. I eventually settled for an XS trigear. Fingers crossed it should
be finished in time for thr 2004 PFA rally.
Simon
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Dave Simpson
Subject: RE: Europa-List: Project wanted
--> Europa-List message posted by: Dave Simpson
--> <dave_simpson@londonweb.net>
Simon,
Did you find a Europa?
Dave
-----Original Message-----
From: Simon Smith [SMTP:jodel@tiscali.co.uk]
Subject: Europa-List: Project wanted
--> Europa-List message posted by: "Simon Smith" <jodel@tiscali.co.uk>
Hi all,
I'm looking for an unfinished Europa in the UK. Classic or XS. Mono or Tri.
Cheers
Simon
jodel@tiscali.co.uk
advertising on the Matronics Forums.
Share: Share photos & files with other List members.
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
Your assumption of 1 failure of alternator or regulater to be 1 on 1000
hours can't be realistic.
Back to cars, in the 40 years i have been driving, 3.500.000 km, about
500.000 hours, i never had an alternator, regulator nor battery failure.
Maybe i've been lucky, but still, car alternators are pretty reliable.
I can think of only one reason why airplane alternators would be less
reliable and that is lightning, or better the electromagnetic pulse from
it, in a non shielded, non metal airplane.
Back to odds:
In calculation the odds of failure one important view is usually
neglected. Every component, every wire, and every contact between them
has a failure rate. By adding components for safety you will obviously
end up with more components. At first sight adding a completely
independent system will only double the failure rate of the total.
But there will be extra components, to make switching between the
systems possible, inherently adding failing components. The result is
that the total system, the aircraft will be more error prone.
Really, simple is beautiful!
In case of bad pulse from lighning every semiconductor in the plane
could be destroyed. You don't even need a direct hit for that! So if, in
a sophisticated double system bus isolation or relay protection is by
diodes, we will have a complete failure. The best suggestion i saw was a
set of alkaline batteries to switch to. Mechanical :-)
Jos Okhuijsen
Fred Fillinger wrote:
>--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
>
>david joyce wrote:
> > ...It is entirely reasonable to allow for one unlikely event, but
> > the odds of two unlikely independent events happening simultaneously
> > are such that I am happy to use gliding for the back up mode.
>
>Agree but ever play with the actual math? [I think fwg is correct!]
>
>Consider a case, familiar with automobiles, where the battery starts the
>engine, but for the trip back home it's dead. Assume the odds of this
>are 200/1, to include possible poor system design, fabrication, or
>maintenance, but whether accurate will be shortly seen as irrelevant.
>Assume also the average flight is 1 hour for simpler math. If the odds
>of either alternator or regulator failure are one in 1,000 hours, then
>the odds of both charging system and battery failure are one in 200,000
>for each flight. Sounds good but...
>
>Over say 500 hours of airframe time for one's flying the plane, we're
>down to 400/1 for the chances of being caught someday, some year not
>knowing how long further flight is possible on the 914 if it's running
>at all. Reflecting also the odds of all other system failures causing a
>serious in-flight problem, the overall odds grow shorter. This
>phenomenon is evident in accident data, where builders too often do
>things for critical systems the FAA would not approve, and system
>failures occur at very low airframe times.
>
>Consider now two independent alternator/battery systems. Or that the
>odds of an emergency battery pack failing is also 200,000/1. The odds
>of both systems failing becomes 40 billion/1, making it irrelevant
>whether 200/1 odds on battery failure may be too low, because over the
>assumed years of flying it's still 80 million/1. A far cry from 400/1.
> For this reason, seems FAA may not make failure probabilities
>controlling for approval if full redundancy is provided (per AC 23.1309-1C).
>
>Regards,
>Fred F.
>
>
>
>
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Europa covers wanted |
--> Europa-List message posted by: "Ami McFadyean" <ami@mcfadyean.freeserve.co.uk>
They are also white in colour (when they're new!) so you should not have to
worry about overheating (as you would with the darker colour covers
around).
Duncan McF.
----- Original Message -----
From: "Ian Mansfeld" <ian_mansfeld@lineone.net>
Subject: Re: Europa-List: Europa covers wanted
> --> Europa-List message posted by: "Ian Mansfeld"
<ian_mansfeld@lineone.net>
>
> I can't offer you any covers, but if you want to get some, I can fully
> recommend the ones by Jaxida. They are waterproof yet porous to air and
with
> an inner material that promotes a self polishing actionin the wind.The fit
> is excellent and they turn into their own stowage & carry bags. Not cheap
at
> about 1200, but IMHO the best. Try www.jaxida.com.
>
> Ian.
> ----- Original Message -----
> From: "Cripps, David" <david.cripps@spsystems.com>
> To: <europa-list@matronics.com>
> Subject: Europa-List: Europa covers wanted
>
>
> > --> Europa-List message posted by: "Cripps, David"
> <david.cripps@spsystems.com>
> >
> > Help! Due to ownership changes at our airfield, I am losing my Europa's
> hangar space and will need to park outside on the grass for the
foreseeable
> future.
> >
> > Does anyone have a set of full outdoor covers for a Europa Classic that
I
> could borrow/hire/buy until the situation is resolved? I have a reflective
> cockpit cover but would really like to cover the whole thing up, as much
to
> keep prying fingers off, as to keep it snug from our wet coastal weather.
> >
> > Any help gratefully received.
> >
> > David
> >
> > GBWJH
> >
> >
> > Visit SP at stand D103 at the European Wind Energy Conference, Madrid,
> Spain, 16th - 19th June 2003
> >
> >
>
****************************************************************************
> ******************
> > All sales of goods are subject to the terms and conditions of sale (the
> Conditions)
> > of SP Systems (the Company) which are available on request from the
> Company
> > or may be viewed on our Website (http://www.spsystems.com).
> >
> > Any advice given by the Company in connection with the sale of goods is
> given
> > in good faith but the company only warrants that advice in writing is
> given with
> > reasonable skill and care. All advice is otherwise given subject to the
> Conditions.
> >
> > The contents of this message and any attachments are confidential and
> > are intended solely for the attention and use of the addressee only.
> > Information contained in this message may be subject to legal,
> > professional or other privilege or may otherwise be protected by other
> > legal rules. This message should not be copied or forwarded to any other
> > person without the express permission of the sender. If you are not the
> > intended recipient you are not authorised to disclose, copy, distribute
> > or retain this message or any part of it.
> >
> >
>
>
Message 15
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
Hmm, Ira,
Harmonics... The 4th is at 10 - 20-1st 40-2nd- 80-3rd- 160 -4th kHz.
Just took the 4th from the message without calculating . My fault. Let's
try this again. The sums of the 12th and the 14th add up into the VHF
band and add up to about 3 mV, still enough to cause trouble. Agree,
capacitors would prevent interference, and do not load a 10 khz pwm.
I'll wait with a reply next time till after coffee :-)
Jos Okhuijsen
irampil@notes.cc.sunysb.edu wrote:
>--> Europa-List message posted by: irampil@notes.cc.sunysb.edu
>
>Hi Jos,
>
>Just a second here :-)
>You mean to say that 0.01mfd ceramic caps are going to load down the pwm?
>whoaaaaaa!
>You mean to seriously post that a 4th harmonic of 10kHz (i.e., 40 kHz on a
>vhf tuned dipole is going to do anything at all? whoaaaa.
>You think that even running close and parallel, that a 10 volt (15 ma)
>current parallel to the antenna for the whole length of the plane is going
>to
>induce 750 ma in the antenna? whoaaaaaaaa
>
>
>Don't take me too seriously, but I used to play an engineer on TV (slow
>scan TV that is)
>
>Ira
>
>
>Jos Okhuijsen <josok@ukolo.fi>
>Sent by: owner-europa-list-server@matronics.com
>06/24/03 02:40 AM
>Please respond to europa-list
>
> To: europa-list@matronics.com
> cc:
> Subject: Re: Europa-List: LEDs
>
>
>--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
>
>
>Some simple math:
>4 harmonics -> 4 x 3 db = -12 db
>12 V -12 dB = 750 mV over any wiring carrying the load.
>If the length of the wiring comes anything close to the wavelength, half
>or quarter of the comm freq's, adding a working antenna to this
>transmitter design, you might be a nuisance to anything in quite a
>reasonable range in addition to your own problems. Bypass capacitors?
>Will load (overload?) the square wave generator.
>
>Jos Okhuijsen
>
>
>
>
Message 16
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
For the first 5 europa crews to arrive at Ivalo airport EFIV (Finnish
Lapland, daylaight VFR 24 hrs until the 18th of August) we offer up to
one week in one of our D-type bungalows in our holiday village (
http://www.ukolo.fi ) and transfers from and to the airport for no other
compensation then showing your plane and taking me up for a short trip.
If you are interested, contact me at josok@ukolo.fi or call me at
+358445007853 for details, maps or any other information.
Jos Okhuijsen
Message 17
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
"Your assumption of 1 failure of alternator or regulater to be 1 on 1000
hours can't be realistic.
Back to cars, in the 40 years i have been driving, 3.500.000 km, about
500.000 hours, i never had an alternator, regulator nor battery failure."
How many cars/alternators/batteries was that?
I've got a fifty-year-old ax here, Eight new heads and four handles and
she's good as new.
Ferg
Message 18
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
Does it make a difference for the mtbf?
To answer the question, at least 20 cars, plus the usual company cars,
loans and rentals.
Off topic sorry. My favourite is my cherokee, that has survived 14 years
and 360.000 km, on it's 4th battery now, and second alternator (bearing
run out, but it kept charging until repalced). This in this climate,
with temperatures from -50 to + 35 C and no, it's always outside. Not as
good as new, but still in use once in a while.
Jos Okhuijsen
Fergus Kyle wrote:
>--> Europa-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
>
>"Your assumption of 1 failure of alternator or regulater to be 1 on 1000
>hours can't be realistic.
>Back to cars, in the 40 years i have been driving, 3.500.000 km, about
>500.000 hours, i never had an alternator, regulator nor battery failure."
>
>How many cars/alternators/batteries was that?
>I've got a fifty-year-old ax here, Eight new heads and four handles and
>she's good as new.
>Ferg
>
>
>
>
Message 19
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
Jos Okhuijsen wrote:
> Your assumption of 1 failure of alternator or regulater to be 1 on 1000
> hours can't be realistic.
> Back to cars, in the 40 years i have been driving, 3.500.000 km, about
> 500.000 hours, i never had an alternator, regulator nor battery failure.
> I can think of only one reason why airplane alternators would be less
> reliable and that is lightning, or better the electromagnetic pulse from
> it, in a non shielded, non metal airplane.
I can think of many reasons. Auto alternators run at a fraction of
capacity, for satisfactory operation in city driving. The Rotax
alternator likely will be running close to full-tilt with any decent
instrument panel, generating considerable heat in any already hot
operating environment. Though it should be more robust, as a simple PM
type "dynamo," it was once recalled by Rotax. Maintenance-free and
low-maintenance batteries are improved technologies over the 1800's
technology flooded-cells, which are what A/C batteries are.
Amateur-built A/C are used much less frequently, shortening the life of
these batteries. The reliability of recombinant gas batteries not
approved by FAA is so far anecdotal. Auto alternators are
temperature-compensated for always optimum charge voltage. The Mickey
Mouse Rotax regulator isn't even putting out the correct voltage at the
low end of its spec!
The Teledyne-Gill battery in my other plane failed recently and
suddenly. In the annual inspection a couple months prior, it passed the
hydrometer and standing voltage test. The plane is also on it 2nd
FAA-approved alternator in 1100 hours.
> adding a completely independent system will only double the failure
> rate of the total.
Correct, as is your observation of further probability that the switch
might fail. However, for fail-danger analysis it's their individual
failure probability squared. If the systems have 10% chance of failing,
both failing is 1/10 x 1/10, or 1 over 10 squared.
Regards,
Fred F.
Message 20
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Batteries true or false? |
--> Europa-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
Hey Guys
I posed a question to Lockwood Aviation in FL a while back about using 2
alternators and 2 batteries to keep fuel pumps running.
He thought it was not necessary.
He said that the alternator has some sort of seperate winding or redundency (?)
to keep a fuel pump going in the event the battery and primary windings in
alternator failed.
Is this true or false?
He said Rotax thought the problem through quite well?
Ron Parigoris
Message 21
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
Hi! Jos.
Sorry to have missed your offer. I was quite near you 10 days ago from
Kiruna to Tromso pity I didn't know then ! 3,561 Nm over 10 days ...39 hours
flight time and back through Shetland to Scotland. The 24 hour VFR takes the
pressure off deadlines too but the GPS turned to night mode as sun set time
met sunrise time!
Regards
Bob Harrison G-PTAG Europa MKI 337/Jabiru 3300#084
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Jos
Okhuijsen
Subject: Europa-List: offer
--> Europa-List message posted by: Jos Okhuijsen <josok@ukolo.fi>
For the first 5 europa crews to arrive at Ivalo airport EFIV (Finnish
Lapland, daylaight VFR 24 hrs until the 18th of August) we offer up to
one week in one of our D-type bungalows in our holiday village (
http://www.ukolo.fi ) and transfers from and to the airport for no other
compensation then showing your plane and taking me up for a short trip.
If you are interested, contact me at josok@ukolo.fi or call me at
+358445007853 for details, maps or any other information.
Jos Okhuijsen
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|