Today's Message Index:
----------------------
1. 12:02 AM - Anyone have an aft mounted Odyssey PC535 or PC545? (rparigoris)
2. 07:15 AM - Re: Anyone have an aft mounted Odyssey PC535 or PC545? (Robert Borger)
3. 08:06 AM - Re: Mod 73 - a safer approach (Brad Shafer)
4. 03:23 PM - Prop Efficiency (rampil)
5. 05:00 PM - Re: power settings (rampil)
6. 05:10 PM - Re: Prop Efficiency (Gilles Thesee)
7. 07:31 PM - Re: Prop Efficiency (rampil)
8. 07:40 PM - Re: Prop Efficiency (ALAN YERLY)
9. 09:49 PM - Re: Prop Efficiency (Fred Klein)
10. 11:41 PM - Re: Prop Efficiency (Robert C Harrison)
11. 11:41 PM - Re: Prop Efficiency (Robert C Harrison)
Message 1
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| Subject: | Anyone have an aft mounted Odyssey PC535 or PC545? |
Anyone have an aft mounted Odyssey PC535 or PC545?
What motor you have?
What size cables?
How old is battery?
How has battery performed?
Does battery have a metal jacket?
I am considering one of these batteries for aft mounted XS monowheel 914 install
with CCA #4 cables. I have new style starter (more torque and less amp draw).
535 and 545 is lighter than 625 (12.0lbs + 11.7lbs compared to 13.2). Aluminium
wires will save ~ 1 pound over #4 copper tefzel from ACS.
Since battery is not in engine compartment I don't think I need a metal jacket.
Please set me straight if you think a metal jacket is a good idea.
Ron Parigoris
Visit - www.EuropaOwners.org
Message 2
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| Subject: | Re: Anyone have an aft mounted Odyssey PC535 or PC545? |
Hi Ron,
You are probably aware of my aircraft through the build web site, but
here are the answers for my build. No recommendations, just answers.
On Dec 28, 2008, at 1:59, rparigoris wrote:
> >
>
> Anyone have an aft mounted Odyssey PC535 or PC545?
I have an aft-mounted Odessey PC680 (RG/AGM, 680 cranking amps & 15
lbs.)
> What motor you have?
Rotax 914UL with the high-torque starter.
>
> What size cables?
#4 copper as provided by Europa with the electrical harness kit.
>
> How old is battery?
4 years, mostly in storage
>
> How has battery performed?
Fantastic. After two years in storage, without putting it on a
charger, it still ran my instrument panel. Ran the panel tests for
several months before I put it on a charger the first time. Most of
the last two years it ran electrical tests on the airframe with
occasional re-charging with a plain vanilla Sears battery charger.
The 680 has served to setup the engine for starting (building initial
oil pressure, etc.) and has started the 914 several times. The
battery will turn the 914 with great vigor, such that it will start
with the passage of two of three three blades. About 6 months ago I
purchased a new Schumacher intelligent charger/maintainer (as
recommended by 'Lectric Bob) which has been on it almost continuously
since.
>
> Does battery have a metal jacket?
No, but it is on a metal tray and is secured with a metal strap.
> I am considering one of these batteries for aft mounted XS monowheel
> 914 install with CCA #4 cables. I have new style starter (more
> torque and less amp draw).
>
> 535 and 545 is lighter than 625 (12.0lbs + 11.7lbs compared to
> 13.2). Aluminium wires will save ~ 1 pound over #4 copper tefzel
> from ACS.
>
> Since battery is not in engine compartment I don't think I need a
> metal jacket. Please set me straight if you think a metal jacket is
> a good idea.
>
> Ron Parigoris
Bob Borger
Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S
http://www.europaowners.org/N914XL
(99.999% done) Essentially complete. Running Tests & Final Inspections.
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117
Message 3
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| Subject: | Mod 73 - a safer approach |
Rick,
Not sure if it would. Bill McClellan has it next. So you might want to get
it from him and see if it helps. I've copied Bill on this. I'm sending the
mandrel to him on Monday.
Brad
From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-serv
er@matronics.com] On Behalf Of Rick Stockton
Sent: Saturday, December 27, 2008 10:15 AM
Subject: RE: Europa-List: Mod 73 - a safer approach
Brad, I was wondering if the mandrel might help me. After completing MOD 7
3 without using the torque tube. I have a build up of restin on the bearin
g surface. I have tried to remove it with some different methods, but so f
ar I have not had a lot of luck.
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
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Message 4
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Hi All,
Bud was bemoaning the lack of data on Europa props.
Here is a short article on how to estimate prop performance
by John Lowry:
http://www.avweb.com/news/airman/182418-1.html
Lowry is the author of Performance of Light Aircraft (1999)
published by the American Institute of Aeronautics and Astronautics.
(yes, you could say the book is authoritative).
Sorry Gary, more numbers! Happy New Year!
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=221516#221516
Message 5
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| Subject: | Re: power settings |
A small follow-up on the power vs altitude issue.
The power increase that occurs with altitude at constant MAP
is due to the drop in pressure to which exhaust gas is vented.
Lowry, JT: Performance of Light Aircraft (AIAA, 1999) page 129.
See also Gagg & Farrar (1934) Altitude Performance of Aircraft Engines
equipped with Gear Driven Superchargers. Soc. Automotive Engineers
Trans. 29:217-233
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=221524#221524
Message 6
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| Subject: | Re: Prop Efficiency |
rampil a crit :
> http://www.avweb.com/news/airman/182418-1.html
>
> Lowry is the author of Performance of Light Aircraft (1999)
> published by the American Institute of Aeronautics and Astronautics.
>
Great book indeed, for the mathematically inclined minds. Bought it 4
years ago.
Unfortunately, the Bootstrap approach is more difficult to implement
with a constant speed prop.
Season's greetings,
Best regards,
--
Gilles
http://contrails.free.fr
Message 7
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| Subject: | Re: Prop Efficiency |
Hi Giles,
The link I provided is the Constant Speed discussion. There is
nothing too tough here. Give me a few weeks of decent flying weather
and I will try to have results. First I need a table to convert TAS
back to CAS ;-)
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=221544#221544
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| Subject: | Re: Prop Efficiency |
Ira,
Great article on trying to simplify prop performance estimates. I spent
the morning today going through my prop stuff looking to do the same.
Nothing simple about it, it is all time consuming and laborious. It's a
lot more fun to fly, especially with the reduction in gas prices. In
the past, I had never ran across Lowry's in my search of the NACA/NASA
sites or book sites, but then again, the last time I actually had a new
text book in my hand was 30 years ago. Now with my son Eric in Aero at
Central Florida, I am disturbed that none of their texts reference much
about old technology stuff like propellers used in general aviation.
See you at SnF if you can make it...
Bud
P.S. It was 82 at the shop today. Wanted to turn the air on.
----- Original Message -----
From: rampil<mailto:ira.rampil@gmail.com>
To: europa-list@matronics.com<mailto:europa-list@matronics.com>
Sent: Sunday, December 28, 2008 6:21 PM
Subject: Europa-List: Prop Efficiency
<ira.rampil@gmail.com<mailto:ira.rampil@gmail.com>>
Hi All,
Bud was bemoaning the lack of data on Europa props.
Here is a short article on how to estimate prop performance
by John Lowry:
http://www.avweb.com/news/airman/182418-1.html<http://www.avweb.com/news/
airman/182418-1.html>
Lowry is the author of Performance of Light Aircraft (1999)
published by the American Institute of Aeronautics and Astronautics.
(yes, you could say the book is authoritative).
Sorry Gary, more numbers! Happy New Year!
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=221516#221516<http://forums
.matronics.com/viewtopic.php?p=221516#221516>
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N
avigator?Europa-List>
Message 9
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| Subject: | Re: Prop Efficiency |
On Sunday, December 28, 2008, at 07:33 PM, ALAN YERLY wrote:
> P.S. It was 82 at the shop today. Wanted to turn the air on.
Geez...and I was stackin a freshly cut cord of seasoned firewood (in
the snow)...
Fred
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Message 10
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That's why for four years with the MT Constant Speed Prop the Jabiru
Factory steadfastly refused to provide any power graphs or curves
relative to MAP for the 3300 engine because it would highlight the
truth!
Compliments of the season Gilles.
Bob H G-PTG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Gilles
Thesee
Sent: 29 December 2008 01:10
Subject: Re: Europa-List: Prop Efficiency
<Gilles.Thesee@ac-grenoble.fr>
rampil a crit :
> http://www.avweb.com/news/airman/182418-1.html
>
> Lowry is the author of Performance of Light Aircraft (1999)
> published by the American Institute of Aeronautics and Astronautics.
>
Great book indeed, for the mathematically inclined minds. Bought it 4
years ago.
Unfortunately, the Bootstrap approach is more difficult to implement
with a constant speed prop.
Season's greetings,
Best regards,
--
Gilles
http://contrails.free.fr
Message 11
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Hi! Alan
How come your gas prices have come down ?
Regards
Bob Harrison
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of ALAN YERLY
Sent: 29 December 2008 03:34
Subject: Re: Europa-List: Prop Efficiency
Ira,
Great article on trying to simplify prop performance estimates. I spent
the morning today going through my prop stuff looking to do the same.
Nothing simple about it, it is all time consuming and laborious. It's a
lot more fun to fly, especially with the reduction in gas prices. In
the past, I had never ran across Lowry's in my search of the NACA/NASA
sites or book sites, but then again, the last time I actually had a new
text book in my hand was 30 years ago. Now with my son Eric in Aero at
Central Florida, I am disturbed that none of their texts reference much
about old technology stuff like propellers used in general aviation.
See you at SnF if you can make it...
Bud
P.S. It was 82 at the shop today. Wanted to turn the air on.
----- Original Message -----
From: rampil <mailto:ira.rampil@gmail.com>
Sent: Sunday, December 28, 2008 6:21 PM
Subject: Europa-List: Prop Efficiency
Hi All,
Bud was bemoaning the lack of data on Europa props.
Here is a short article on how to estimate prop performance
by John Lowry:
http://www.avweb.com/news/airman/182418-1.html
Lowry is the author of Performance of Light Aircraft (1999)
published by the American Institute of Aeronautics and Astronautics.
(yes, you could say the book is authoritative).
Sorry Gary, more numbers! Happy New Year!
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=221516#221516
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