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1. 05:31 AM - Was : Re: Now Operating LOP (BobsV35B@aol.com)
2. 09:04 AM - Re: Was : Re: Now Operating LOP (craig kennedy)
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Subject: | Re: Now Operating LOP |
Good Morning Craig,
My experience with any Aero Commander is now over fifty years old, but I do
have a LOT of time operating various engines on the lean side of peak EGT.
Back when I was flying early Aero Commanders and Twin Bonanzas I did
occasionally run those engines on the lean side. It was only at low power
settings and we did not have good instrumentation, but I observed no harm at the
time. Further knowledge that I have acquired over the last sixty years has
convinced me that LOP is the way to go IF you have good distribution. The
way I checked for good distribution before modern engine analyzers were
available was to lean for a power drop. If the airplane could be slowed down
about ten MPH via running on the lean side with no roughness, I figured it was
good enough to operate LOP.
I am certainly no engine expert, but I did attend a course taught by
Curtiss Wright engineers in the spring of 1954.
They made the same points that are now presented by the GAMI folks.
I am a believer, but you HAVE to find a method of assuring that each
cylinder is operating at the proper mixture. If you have not yet done so, I urge
you to attend one of the seminars held by folks from GAMI. If you can't
attend in person, take the home study version, but going with a group of
pilots is a lot more fun. (Been there twice and I was a believer in the process
before the folks at GAMI were born! <G>)
Happy Skies,
Old Bob
AKA
Bob Siegfried
Brookeridge Air Park
Downers Grove, Illinois
Stearman N3977A
In a message dated 4/18/2010 12:37:23 A.M. Central Daylight Time,
white_rhino_ps@yahoo.com writes:
Sure is Nico. Just brought it up from San Diego last weekend. Been
sorting out leaky new fuel cells and the usual squawks. After double clamping
all the connector tubes, thought I had it whipped. Turns out those 10 cent
cork access hole gaskets were leaking after being used a couple of times.
A trip to Napa finally stopped the 5 dollar a gallon drip!!! Rebuilt
engines are running well. Need to dial in the injectors. Talked to the GAMI
folks and they have never done a IGO-540. Could be useful as I already have
the GEM CHT/EGT monitor and the JPI dual fuel flow so I can see what is
going on pretty well. Has anyone in the gang had experience with this yet?
The idea of running them 50 degrees LOP makes me cringe!
Annual coming late summer so I'm collecting the bits now. I need to
replace the aux fuel valves and that should finish with those issues. Annual
time with the nacelles down is the time for that! The donor plane has been a
big help with parts and bits. My pals have noticed that the donor plane so
far has been the best plane investment in Commanders I've made to date!
Not a lot of air time this year due to work but I'm hoping the fall will
see more action. I put 747H up for sale, but so far, it's all looky-loos....
Craig
____________________________________
From: cybersuperstore <nico@cybersuperstore.com>
Sent: Sat, April 17, 2010 8:03:00 PM
Subject: RE: Commander-List: Re: Commanders
I lost my Outlook on my laptop and had to restore everything to a new
desktop this past week. So, I am going through all the emails because the mail
server lost the data that told it which email messages were already on my
laptop and started downloading 10,000+ messages from more than a year ago. I
am taking the opportunity to clean some of the trash out and sorting them
back into their respected folders while I am at it.
Yesterday I stopped over at Camarillo airport for a coffee and to walk
around to see if I see familiar planes. And there was N747H, which I didn't
thing anything of except to gawk into the windows and move on. Tonight I saw
this message from almost a year ago. I am almost certain that I have seen
747H on the apron before, but cannot be sure.
Craig, is she still under your command?
Thanks
Nico
____________________________________
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of craig kennedy
Sent: Monday, July 06, 2009 10:45 AM
Subject: Commander-List: Re: Commanders
Hello gang,
Just thought I would update the group that 560F N747H, stored for over a
year in the middle of nowhere ( Paris , TX ), is running again with rebuilt
engines and props. Richard Cam at Aeroquest did a great job getting all
the problems sorted out. Just a few more days to tidy up the remaining
issues and she should be up for fun and adventure. Maybe even a trip for the
annual get together.
Craig
_http://www.matronics.com/Navigator?Commander-List_
(http://www.matronics.com/Navigator?Commander-List)
_http://forums.matronics.com_ (http://forums.matronics.com/)
_http://www.matronics.com/contribution_
(http://www.matronics.com/contribution)
(http://www.matronics.com/Navigator?Commander-List)
(http://www.matronics.com/contribution)
Message 2
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Subject: | Re: Now Operating LOP |
Old Bob,
I believe in the LOP process, but need to dial in the flow per cylinder first for
this pair of engines. The right just runs rough LOP so I have a ways to go.
GAMI was willing to take on my IGO-540's, just have no experience with them
yet. At 22 inches and 2600 rpm, I still burn 19 gph on the left and 22 gph on
the right. Both servos and distributors were overhauled by the same outfit,
and the injectors are all new. The left just needs cylinder #2 injector slightly
smaller. The right is defying tuning. Going to have to pull the right servo
and distributor and send it back. Then start all over! Had to do that on
the left to get it right. It's just no fun as it's mighty crowded in there.
All part of the joy of an old plane, new engines, and prior owners who just didn't
keep the ol gal up to snuff. Overall the list is getting shorter every day
and and I can use 747H safely and reliably now.
Fun flying,
Craig
________________________________
From: "BobsV35B@aol.com" <BobsV35B@aol.com>
Sent: Sun, April 18, 2010 5:27:50 AM
Subject: Was : Re: Commander-List: Now Operating LOP
Good Morning Craig,
My experience with any Aero Commander is now over fifty years old, but I do
have a LOT of time operating various engines on the lean side of peak EGT.
Back when I was flying early Aero Commanders and Twin Bonanzas I did
occasionally run those engines on the lean side. It was only at low power
settings and we did not have good instrumentation, but I observed no harm at the
time. Further knowledge that I have acquired over the last sixty years has
convinced me that LOP is the way to go IF you have good distribution. The way I
checked for good distribution before modern engine analyzers were available was
to lean for a power drop. If the airplane could be slowed down about ten MPH via
running on the lean side with no roughness, I figured it was good enough to
operate LOP.
I am certainly no engine expert, but I did attend a course taught by
Curtiss Wright engineers in the spring of 1954.
They made the same points that are now presented by the GAMI folks.
I am a believer, but you HAVE to find a method of assuring that each
cylinder is operating at the proper mixture. If you have not yet done so, I urge
you to attend one of the seminars held by folks from GAMI. If you can't attend
in person, take the home study version, but going with a group of pilots is a
lot more fun. (Been there twice and I was a believer in the process before the
folks at GAMI were born! <G>)
Happy Skies,
Old Bob
AKA
Bob Siegfried
Brookeridge Air Park
Downers Grove, Illinois
Stearman N3977A
In a message dated 4/18/2010 12:37:23 A.M. Central Daylight Time,
white_rhino_ps@yahoo.com writes:
Sure
> is Nico. Just brought it up from San Diego last weekend. Been
> sorting out leaky new fuel cells and the usual squawks. After double clamping
> all the connector tubes, thought I had it whipped. Turns out those 10
> cent cork access hole gaskets were leaking after being used a couple of
> times. A trip to Napa finally stopped the 5 dollar a gallon
> drip!!! Rebuilt engines are running well. Need to dial in the
> injectors. Talked to the GAMI folks and they have never done a
> IGO-540. Could be useful as I already have the GEM CHT/EGT monitor and
> the JPI dual fuel flow so I can see what is going on pretty well. Has
> anyone in the gang had experience with this yet? The idea of running
> them 50 degrees LOP makes me cringe!
>
>Annual coming late summer so I'm
> collecting the bits now. I need to replace the aux fuel valves and that should
> finish with those issues. Annual time with the nacelles down is the time
> for that! The donor plane has been a big help with parts and bits.
> My pals have noticed that the donor plane so far has been the best plane
> investment in Commanders I've made to date! Not a lot of air time
> this year due to work but I'm hoping the fall will see more action. I
> put 747H up for sale, but so far, it's all looky-loos....
>
>Craig
>
>
________________________________
From: cybersuperstore
> <nico@cybersuperstore.com>
>To: > commander-list@matronics.com
>Sent: Sat, April 17, 2010 8:03:00
> PM
>Subject: RE:
> Commander-List: Re: Commanders
>
> >
>I lost my Outlook on
> my laptop and had to restore everything to a new desktop this past week. So,
I
> am going through all the emails because the mail server lost the data that
> told it which email messages were already on my laptop and started downloading
> 10,000+ messages from more than a year ago. I am taking the opportunity to
> clean some of the trash out and sorting them back into their respected folders
> while I am at it.
>
>Yesterday I stopped
> over at Camarillo airport for a coffee and to walk around to see if I see
> familiar planes. And there was N747H, which I didn't thing anything of except
> to gawk into the windows and move on. Tonight I saw this message from almost
a
> year ago. I am almost certain that I have seen 747H on the apron before, but
> cannot be sure.
>
>Craig, is she still
> under your command?
>
>Thanks
>
>Nico
>
>
>
________________________________
>From:> owner-commander-list-server@matronics.com
> [mailto:owner-commander-list-server@matronics.com] On Behalf Of craig kennedy
>Sent: Monday, July 06, 2009 10:45
> AM
>To: > commander-list@matronics.com
>Subject: Commander-List: Re:
> Commanders
>
>Hello
> gang,
>
>Just thought I would update the group that 560F N747H,
> stored for over a year in the middle of nowhere ( Paris , TX ), is
> running again with rebuilt engines and props. Richard Cam at
> Aeroquest did a great job getting all the problems sorted out.
> Just a few more days to tidy up the remaining issues and she should be
> up for fun and adventure. Maybe even a trip for the annual get
> together.
>
>Craig
>
>
>
>http://www.matronics.com/Navigator?Commander-List
>http://forums.matronics.com/
>http://www.matronics.com/contribution
>
>
>
>
>===================================
>t href="http://www.matronics.com/Navigator?Commander-List">http://www.matronics.com/Navigator?Commander-List===================================
>ms.matronics.com/">http://forums.matronics.com
>===================================
>tp://www.matronics.com/contribution">http://www.matronics.com/contribution===================================
>
>
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