Dawley Aviation PIREP, or: Atlas is BACK

"Newps" wrote in message
...


Jay Honeck wrote:
(Incidentally, he said that the best thing that EVER happened to
their business was everyone running "lean of peak" and driving their EGTs
up above 1500 degrees. As temperatures approach 1600 degrees, the metal
simply starts to fail, and you end up saving pennies on gas, and blowing
dollars on exhaust systems.)

Done improperly LOP will start to melt exhaust systems. If you're getting
over 1500 EGT then you're not LOP, you're at peak. 75 LOP is the same
temp as 75 ROP.

The PROPER way is not so much running ROP or LOP but rather the transition
from full rich to LOP - it has to be done quickly, like 3-4 seconds ("The
Big Pull" as Deakin describes it).

Where jus about everyone gets into trouble is running near peak (i.e., just
a few degrees either side).

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.



--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO

"Matt Barrow" wrote in message
...

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.

Jay quotes an expert in the field and you accuse him of parroting
misinformation? LOP is good when properly done, but I think the statement
from Dawley says it is NOT being properly done for the most part. The
company I work for overhauls 400+ aircraft engines a year. Our teardown
shop can tell you which ones have been ran LOP and which have not.

Allen

"A. Smith" wrote in message
. net...

"Matt Barrow" wrote in message
...

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.

Jay quotes an expert in the field and you accuse him of parroting
misinformation?

And expert on...what?

LOP is good when properly done, but I think the statement from Dawley says
it is NOT being properly done for the most part. The company I work for
overhauls 400+ aircraft engines a year. Our teardown shop can tell you
which ones have been ran LOP and which have not.

Really? How?

"Matt Barrow" wrote in message
...
"A. Smith" wrote in message
. net...

"Matt Barrow" wrote in message
...

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.

Jay quotes an expert in the field and you accuse him of parroting
misinformation?

And expert on...what?

An expert on repairing aircraft exhaust. Isn't that what Dawley does?

LOP is good when properly done, but I think the statement from Dawley
says it is NOT being properly done for the most part. The company I work
for overhauls 400+ aircraft engines a year. Our teardown shop can tell
you which ones have been ran LOP and which have not.

Really? How?

I suggest that if you are really interested in this you get with Lycoming or
TCM and see what they suggest for your engine. There are only a handful of
engines that were designed to be ran LOP.

A. Smith wrote:

"Matt Barrow" wrote in message
...

"A. Smith" wrote in message
y.net...

"Matt Barrow" wrote in message
...

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.


Jay quotes an expert in the field and you accuse him of parroting
misinformation?

And expert on...what?


An expert on repairing aircraft exhaust. Isn't that what Dawley does?

LOP is good when properly done, but I think the statement from Dawley
says it is NOT being properly done for the most part. The company I work
for overhauls 400+ aircraft engines a year. Our teardown shop can tell
you which ones have been ran LOP and which have not.

Really? How?


I suggest that if you are really interested in this you get with Lycoming or
TCM and see what they suggest for your engine. There are only a handful of
engines that were designed to be ran LOP.

How do you design an engine to run LOP?


Matt

"Matt Whiting" wrote in message
...

How do you design an engine to run LOP?


Matt

Compression ratio, cumbustion chamber shape, valve placement, valve
material, crankshaft counterweight design...............................

A. Smith wrote:
"Matt Whiting" wrote in message
...

How do you design an engine to run LOP?


Matt


Compression ratio, cumbustion chamber shape, valve placement, valve
material, crankshaft counterweight design...............................

Example?

Matt

"Matt Whiting" wrote in message
...
A. Smith wrote:

Really? How?


I suggest that if you are really interested in this you get with Lycoming
or TCM and see what they suggest for your engine. There are only a
handful of engines that were designed to be ran LOP.

How do you design an engine to run LOP?


So much for "expertise".


--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO

A. Smith wrote:
"Matt Barrow" wrote in message
...

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.


Jay quotes an expert in the field and you accuse him of parroting
misinformation? LOP is good when properly done, but I think the statement
from Dawley says it is NOT being properly done for the most part. The
company I work for overhauls 400+ aircraft engines a year. Our teardown
shop can tell you which ones have been ran LOP and which have not.

I think the point is that it is the temperatue seen by the exhaust pipe
that matters, not whether it is LOP or ROP. And the temps mentioned by
Mr. Dawley sound more like runnint at peak, rather than either side.
People seem to automatically blame running on the lead side and that
simply isn't supported by the data. It is an old wives tale pure and
simple.


Matt

"Matt Whiting" wrote in message
...
A. Smith wrote:
"Matt Barrow" wrote in message
...

Jay is merely parroting the OWT and misinformation that has been running
around out there for _years_.


Jay quotes an expert in the field and you accuse him of parroting
misinformation? LOP is good when properly done, but I think the
statement from Dawley says it is NOT being properly done for the most
part. The company I work for overhauls 400+ aircraft engines a year.
Our teardown shop can tell you which ones have been ran LOP and which
have not.

I think the point is that it is the temperatue seen by the exhaust pipe
that matters, not whether it is LOP or ROP. And the temps mentioned by
Mr. Dawley sound more like runnint at peak, rather than either side.
People seem to automatically blame running on the lead side and that
simply isn't supported by the data. It is an old wives tale pure and
simple.


Matt

Which is my point, people think they know how to run LOP but actually are
running at peak, causing damage. The guy at Dawley didn't say running LOP
did the damage, just that when the LOP operation began being pushed is when
the damage started showing up.

Allen