Today's Message Index:
----------------------
0. 07:07 AM - Please Make A Contribution To Support Your Lists (Matt Dralle)
1. 05:46 AM - Re: LycomingEngines-List Digest: 2 Msgs - 11/06/17 (Paul Collins)
2. 06:55 AM - Re: Re: LycomingEngines-List Digest: 2 Msgs - 11/06/17 (Kelly McMullen)
3. 07:24 AM - Re: Re: LycomingEngines-List Digest: 2 Msgs - 11/06/17 (Sebastien)
4. 09:20 AM - Re: Re: LycomingEngines-List Digest: 2 Msgs - 11/06/17 (Ray Eaker)
Message 0
| 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: | Please Make A Contribution To Support Your Lists |
Dear Listers,
There is no advertising income to support the Matronics Email Lists and Forums.
The operation is supported 100% by your personal Contributions during the November
Fund Raiser.
Please make your Contribution today to support the continued operation and upgrade
of these services. You can pick up a really nice gift for making your Contribution
too!
You may use a Credit Card or Paypal at the Matronics Contribution Site here:
http://www.matronics.com/contribution
or, you can send a personal check to the following address:
Matronics / Matt Dralle
581 Jeannie Way
Livermore, CA 94550
Thank you in advance for your generous support!
Matt Dralle
Matronics Email List and Forum Administrator
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: LycomingEngines-List Digest: 2 Msgs - 11/06/17 |
Thank you all for your opinions. With the engine monitoring systems we now
often have we should be able to do a better job than just tying to judge v
ibration in the cockpit.
Again, I have a Lycoming IO-360 in an RV8 with EGT and CHT real-time monito
ring. The question again is, what readings on these monitoring systems sho
uld I use to best protect the engine and still obtain/balance optimal perfo
rmance for different altitudes/power settings.
How about this, what settings would we look for at these =9Ccruise
=9D power levels? What do you use? I know there may be some =9C
high RPM/low MP=9D folks and some =9Clow RPM/high MP=9D f
olks =93 so tell us why!?
1. 45 =93 50% power =
a. RPM ___
b. Manifold Pressure ___
c. CHT ___
d. EGT ___
e. Fuel Flow ___
2. 50 -55% power
a. RPM ___
b. Manifold Pressure ___
c. CHT ___
d. EGT ___
e. Fuel Flow ___
3. 55 =93 60% power
a. RPM ___
b. Manifold Pressure ___
c. CHT ___
d. EGT ___
e. Fuel Flow ___
4. 60 =93 65% power
a. RPM ___
b. Manifold Pressure ___
c. CHT ___
d. EGT ___
e. Fuel Flow ___
I know this is rather overloading, but to me it is what we need to aim for.
I know each airplane setup will be different, but there should be some ta
rgets out there.
Thanks again for the help with this. In the end, there should be a
=9Cbest use=9D range for these settings that will keep the engine hap
py. With the technology that we have now, we should be able to do better t
han just throwing fuel at the engine and fouling plugs with lead.
Thanks!
Paul Collins
RV-8
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 |
|
| Subject: | Re: RE: LycomingEngines-List Digest: 2 Msgs - 11/06/17 |
Critical information on your engine is whether you have parallel or
angle valve cylinders, and if there are any rpm restrictions on your
prop/engine combination. Most angle valve engines have some restriction
on rpm combinations. The parallel valve in certified combinations have
less restrictions, but most props have some.
This limits your ability to run certain cruise rpm/MAP combinations,
mostly in the 2200-2300 range. These restrictions are due to harmonic
resonate vibrations in those ranges.
On 11/7/2017 6:41 AM, Paul Collins wrote:
> Thank you all for your opinions. With the engine monitoring systems we
> now often have we should be able to do a better job than just tying to
> judge vibration in the cockpit.
>
> Again, I have a Lycoming IO-360 in an RV8 with EGT and CHT real-time
> monitoring. The question again is, what readings on these monitoring
> systems should I use to *best protect* the engine and still
> obtain/balance *optimal performance* for different altitudes/power
> settings.
>
> How about this, what settings would we look for at these cruise power
> levels? What do you use? I know there may be some high RPM/low MP
> folks and some low RPM/high MP folks so tell us why!?
>
> 1. 45 50% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
> 2. 50 -55% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
> 3. 55 60% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
> 4. 60 65% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
>
> I know this is rather overloading, but to me it is what we need to aim
> for. I know each airplane setup will be different, but there should be
> some targets out there.
>
> Thanks again for the help with this. In the end, there should be a
> best use range for these settings that will keep the engine happy.
> With the technology that we have now, we should be able to do better
> than just throwing fuel at the engine and fouling plugs with lead.
>
> Thanks!
>
> Paul Collins
>
> RV-8
>
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 |
|
| Subject: | Re: RE: LycomingEngines-List Digest: 2 Msgs - 11/06/17 |
I think I understand your question now Paul. I just set up these parameters o
n an O-360 in an RV-6. I can give you my setup but does your engine monitor d
isplay % power or do you have to calculate it?
Sebastien
> On Nov 7, 2017, at 05:41, Paul Collins <collins04@cableone.net> wrote:
>
> Thank you all for your opinions. With the engine monitoring systems we no
w often have we should be able to do a better job than just tying to judge v
ibration in the cockpit.
> Again, I have a Lycoming IO-360 in an RV8 with EGT and CHT real-time monit
oring. The question again is, what readings on these monitoring systems sho
uld I use to best protect the engine and still obtain/balance optimal perfor
mance for different altitudes/power settings.
> How about this, what settings would we look for at these =9Ccruise
=9D power levels? What do you use? I know there may be some =9Ch
igh RPM/low MP=9D folks and some =9Clow RPM/high MP=9D fol
ks =93 so tell us why!?
> 45 =93 50% power
> RPM ___
> Manifold Pressure ___
> CHT ___
> EGT ___
> Fuel Flow ___
> 50 -55% power
> RPM ___
> Manifold Pressure ___
> CHT ___
> EGT ___
> Fuel Flow ___
> 55 =93 60% power
> RPM ___
> Manifold Pressure ___
> CHT ___
> EGT ___
> Fuel Flow ___
> 60 =93 65% power
> RPM ___
> Manifold Pressure ___
> CHT ___
> EGT ___
> Fuel Flow ___
>
> I know this is rather overloading, but to me it is what we need to aim for
. I know each airplane setup will be different, but there should be some ta
rgets out there.
> Thanks again for the help with this. In the end, there should be a
=9Cbest use=9D range for these settings that will keep the engine happ
y. With the technology that we have now, we should be able to do better tha
n just throwing fuel at the engine and fouling plugs with lead.
> Thanks!
> Paul Collins
> RV-8
>
>
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 |
|
| Subject: | Re: RE: LycomingEngines-List Digest: 2 Msgs - 11/06/17 |
There really are too many variables among airplanes and systems for
anyone's response to accurately apply to your situation/airplane. I assume
you have a constant speed prop, which would change all the answers above
and likely be different for different prop/engine combinations.
Follow the guidance provided in the Pelican Perch articles by John Deakin
and you will be able to come up with the numbers for your setup.
On Tue, Nov 7, 2017 at 10:19 AM, Sebastien <cluros@gmail.com> wrote:
> I think I understand your question now Paul. I just set up these
> parameters on an O-360 in an RV-6. I can give you my setup but does your
> engine monitor display % power or do you have to calculate it?
>
> Sebastien
>
> On Nov 7, 2017, at 05:41, Paul Collins <collins04@cableone.net> wrote:
>
> Thank you all for your opinions. With the engine monitoring systems we
> now often have we should be able to do a better job than just tying to
> judge vibration in the cockpit.
>
> Again, I have a Lycoming IO-360 in an RV8 with EGT and CHT real-time
> monitoring. The question again is, what readings on these monitoring
> systems should I use to *best protect* the engine and still
> obtain/balance *optimal performance* for different altitudes/power
> settings.
>
> How about this, what settings would we look for at these =9Ccruise
=9D power
> levels? What do you use? I know there may be some =9Chigh RPM/low
MP=9D folks
> and some =9Clow RPM/high MP=9D folks =93 so tell us why
!?
>
> 1. 45 =93 50% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
> 2. 50 -55% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
> 3. 55 =93 60% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
> 4. 60 =93 65% power
> 1. RPM ___
> 2. Manifold Pressure ___
> 3. CHT ___
> 4. EGT ___
> 5. Fuel Flow ___
>
>
> I know this is rather overloading, but to me it is what we need to aim
> for. I know each airplane setup will be different, but there should be
> some targets out there.
>
> Thanks again for the help with this. In the end, there should be a
=9Cbest
> use=9D range for these settings that will keep the engine happy. W
ith the
> technology that we have now, we should be able to do better than just
> throwing fuel at the engine and fouling plugs with lead.
>
> Thanks!
>
> Paul Collins
>
> RV-8
>
>
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! --
|