Today's Message Index:
----------------------
1. 06:02 AM - Geared vs other than geared (n414c)
2. 07:33 AM - Re: Questions regarding the 680FL (Ricardo A. Otaola)
3. 10:01 AM - Re: Questions regarding the 680FL (Phil Stubbs)
4. 10:50 AM - Re: Re: Apendix horse (Barry Collman)
5. 07:38 PM - Good news tonight (Bow)
6. 08:05 PM - Re: Good news tonight (Nico van Niekerk)
Message 1
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| Subject: | Geared vs other than geared |
--> Commander-List message posted by: "n414c" <n414c@direcway.com>
Now that we have defended the manhood of geared engines and dissed the non geared....
Chris has pretty well outlined the options.
I am however amazed at the questions not asked and the information not discussed
when this subject comes up.
Let say you purchase an average condition 689FLP for $125,000 and it has 400 hour
engines.
The prebuy goes well and you need to do about $50,000 in work, 20,000 of it is
for exhaust,blower work and other engine related items.
Lets also say you fly 200 hours a year.
1. What is the cost at this point of doing a Mr. RPM conversion.
2. Will the conversion cost plus normal maint. costs over the next 2 years
exceed the $20,000 plus maint costs if you keep the current engines.
3. Will the Mr. RPM conversion increase the sales price at the 2 year mark to payback
the expense. Remember sales price is what you get and not what you want
or think you should get.
4. For the price of the conversion how much improvement is there in climb, speed,
weight lifting, fuel efficiency.
5. When it is time to overhaul both geared engines apply the same 4 questions above.
Is the conversion to a non geared engine worth the cost.
Without doing the math myself (because I do not know the numbers) I doubt that
there is economic justification for a conversion. This is especially true given
the depressed sales prices of geared aircraft due to the negative perception
about them held by most of the pilot population.
I'm sure an IO 720 blown commander is a marvelous plane to fly and certainly has
a manly engine. But is it worth the cost.
The average plane owner buys a plane, spends a ton of money on it, flies it for
2 years and then sells it.
After 2 years do you really think you will get the purchase price plus the cost
of a conversion back?
Anyway that's my more serious thoughts on the matter.
Milt
Message 2
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| Subject: | Re: Questions regarding the 680FL |
--> Commander-List message posted by: "Ricardo A. Otaola" <otayca@telcel.net.ve>
Cap:
I have a 680F, and the stting that you run, are similar to mine, yet I
get IAS of 188MPH.
My settings are 2600 RPM, 31,5 MP @ 10,500 feet, with outside temp of 45
degrees F. Cyl head at about 203 Centigrade.
----- Original Message -----
From: <CapnSpray@aol.com>
Subject: Re: Commander-List: Questions regarding the 680FL
> --> Commander-List message posted by: CapnSpray@aol.com
>
> WING COMMANDER GORDON AND ALL: I am certainly not an expert on the IGSO
540
> B1A engines, However I have made some notes about the fuel consumption's
at
> various power settings.
>
> For example; Cruise power, 2600 RPM Fuel Flow 120 LBS/Side.
> Mixture, 50' Rich, IAS 175 MPH.
> 2600 RPM Fuel Flow 85
> LBS/Side.
> Mixture, 50' Lean, IAS 160 MPH.
>
> So what does that tell us? I was really? From all I have read and heard
> about this subject I have decided to run at 50' rich and my experience
with
> exhaust fingerprints on the top of the cowling is what you would like to
see,
> a soft white and not black. If I could only see the exhaust stacks and I
saw
> the sweet Blue White Flame coming out, I know its rite. I have had three
> compression checks since I've owned my 680 F(P) and all are above 74
except
> one #5 cyl. that is 70#. Remember that the # 5&6 Cyl's get the weather if
> your aircraft is left outside in the rain tied down, close your cowl flaps
> and put some Styrofoam cups over your exhaust pipes.
>
> We are all in this together, and you know what options are like, rite, and
> this is what I have come up with. Thanks Commander Gordon for Inviting me
to
> participate in the discussion.
>
> capnspray, AKA Jerry R. Sprayberry
>
>
Message 3
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| Subject: | Re: Questions regarding the 680FL |
--> Commander-List message posted by: "Phil Stubbs" <br549phil@mindspring.com>
Talked to the re builder at Central Cylinder who got all of Lyc's geared
inventory regarding care of the IGO540-B1As on my 560F. His advice was
"feed it lots of gas and it will stay happy". 34GPH gets me a true of 170K
and keeps cyl temps below 200.
Phil Stubbs
br549phil@mindspring.com
Why Wait? Move to EarthLink.
> [Original Message]
> From: Ricardo A. Otaola <otayca@telcel.net.ve>
> To: <commander-list@matronics.com>
> Date: 12/5/2002 9:29:52 AM
> Subject: Re: Commander-List: Questions regarding the 680FL
>
> --> Commander-List message posted by: "Ricardo A. Otaola"
<otayca@telcel.net.ve>
>
> Cap:
>
> I have a 680F, and the stting that you run, are similar to mine, yet I
> get IAS of 188MPH.
> My settings are 2600 RPM, 31,5 MP @ 10,500 feet, with outside temp of
45
> degrees F. Cyl head at about 203 Centigrade.
>
> ----- Original Message -----
> From: <CapnSpray@aol.com>
> To: <commander-list@matronics.com>
> Subject: Re: Commander-List: Questions regarding the 680FL
>
>
> > --> Commander-List message posted by: CapnSpray@aol.com
> >
> > WING COMMANDER GORDON AND ALL: I am certainly not an expert on the IGSO
> 540
> > B1A engines, However I have made some notes about the fuel consumption's
> at
> > various power settings.
> >
> > For example; Cruise power, 2600 RPM Fuel Flow 120 LBS/Side.
> > Mixture, 50' Rich, IAS 175 MPH.
> > 2600 RPM Fuel Flow 85
> > LBS/Side.
> > Mixture, 50' Lean, IAS 160 MPH.
> >
> > So what does that tell us? I was really? From all I have read and
heard
> > about this subject I have decided to run at 50' rich and my experience
> with
> > exhaust fingerprints on the top of the cowling is what you would like to
> see,
> > a soft white and not black. If I could only see the exhaust stacks and
I
> saw
> > the sweet Blue White Flame coming out, I know its rite. I have had
three
> > compression checks since I've owned my 680 F(P) and all are above 74
> except
> > one #5 cyl. that is 70#. Remember that the # 5&6 Cyl's get the weather
if
> > your aircraft is left outside in the rain tied down, close your cowl
flaps
> > and put some Styrofoam cups over your exhaust pipes.
> >
> > We are all in this together, and you know what options are like, rite,
and
> > this is what I have come up with. Thanks Commander Gordon for Inviting
me
> to
> > participate in the discussion.
> >
> > capnspray, AKA Jerry R. Sprayberry
> >
> >
>
>
Message 4
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| Subject: | Re: Apendix horse |
--> Commander-List message posted by: "Barry Collman" <barry.collman@air-britain.co.uk>
Hi Jerry,
Many thanks. Database has now been suitably updated. Must be the quickest such
update ever!!
Very Best Regards,
Barry
----- Original Message -----
From: <CapnSpray@aol.com>
Subject: Re: Commander-List: Re: Apendix horse
| --> Commander-List message posted by: CapnSpray@aol.com
|
| HI Barry: N198 JW Now has winglets, and Hi lights on the wing tips, I am at
| Commander Aero now and Gary Kromer has made everything up to date on N198JW.
|
|
|
|
|
|
|
Message 5
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| Subject: | Good news tonight |
--> Commander-List message posted by: "Bow" <w.bow@att.net>
Tonight at about 0100 UTC there was a MAYDAY on 121.5 while we were crossing
the Rockies. He said he was "Going Down" and was looking for a road. I
asked his position, to relay to ATC and he said he was "50 north of Tucson".
I lost contact with him but someone closer relayed he had landed on the road
safely and all were well.
It is a good night in aviation.
bilbo
Message 6
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| Subject: | Re: Good news tonight |
--> Commander-List message posted by: "Nico van Niekerk" <nico@cybersuperstore.com>
Good night indeed.
If he had another fan perhaps you wouldn't even have heard about it. But we
are all thankful that they are alright. I wouldn't want to have his nerves
for a while.
Nico
----- Original Message -----
From: "Bow" <w.bow@att.net>
Subject: Commander-List: Good news tonight
> --> Commander-List message posted by: "Bow" <w.bow@att.net>
>
> Tonight at about 0100 UTC there was a MAYDAY on 121.5 while we were
crossing
> the Rockies. He said he was "Going Down" and was looking for a road. I
> asked his position, to relay to ATC and he said he was "50 north of
Tucson".
> I lost contact with him but someone closer relayed he had landed on the
road
> safely and all were well.
>
> It is a good night in aviation.
>
> bilbo
>
>
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