Engine Overspeed was Re: Lifter Adjustment
Posted: Sat Feb 18, 2012 9:05 am
Hey Doug,
Good question. I believe it was a Rotax 912, but I'm not sure. It
just sort of came up in a conversation about other things, and
tear-downs after prop strikes. No specifics were mentioned as to the
troubles afterwards. Like I said, I'm sure no authority
As a further aside, the conversation in which it was mentioned had
nothing to do with a Rebel, but to do with a flip over on landing,
with the standard set of 4 or 5 contributing factors. One of factors
in the incident may have been that the throttle was the type with a
push-button lock. After the incident, the pilot was looking back over
what "went wrong", and discovered that the throttle was not fully back
to idle, but had maybe 1/4" to further to be pulled. It was
considered that maybe in the "heat-of-the-moment-of-realization" that
the landing was not set up too well, that the throttle was pulled back
quickly but stopped "near" idle point but not quite all the way back
due to the release of the lock very quickly to get some more flaps
down. Maybe only 1/4" , but it was just enough to keep the RPM up a
hundred or so more than normal and desired. As engine power is
reduced and speed "slowly" decreasing, it may not even have been
noticed on a paved dry long runway as power is re-applied to taxi, but
on a grass wet short field where taxi is 20 feet into the barn, a
hundred or so RPM may have made a difference.
Take care.
Brian Lawson,
Bothwell, Ontario.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
On Mon, 22 Mar 2004 20:37:55 -0800 (PST), you wrote:
*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://www.dcsol.com/default.htm
Archives public username "rebel" password "builder"
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*
-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------
Good question. I believe it was a Rotax 912, but I'm not sure. It
just sort of came up in a conversation about other things, and
tear-downs after prop strikes. No specifics were mentioned as to the
troubles afterwards. Like I said, I'm sure no authority
As a further aside, the conversation in which it was mentioned had
nothing to do with a Rebel, but to do with a flip over on landing,
with the standard set of 4 or 5 contributing factors. One of factors
in the incident may have been that the throttle was the type with a
push-button lock. After the incident, the pilot was looking back over
what "went wrong", and discovered that the throttle was not fully back
to idle, but had maybe 1/4" to further to be pulled. It was
considered that maybe in the "heat-of-the-moment-of-realization" that
the landing was not set up too well, that the throttle was pulled back
quickly but stopped "near" idle point but not quite all the way back
due to the release of the lock very quickly to get some more flaps
down. Maybe only 1/4" , but it was just enough to keep the RPM up a
hundred or so more than normal and desired. As engine power is
reduced and speed "slowly" decreasing, it may not even have been
noticed on a paved dry long runway as power is re-applied to taxi, but
on a grass wet short field where taxi is 20 feet into the barn, a
hundred or so RPM may have made a difference.
Take care.
Brian Lawson,
Bothwell, Ontario.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
On Mon, 22 Mar 2004 20:37:55 -0800 (PST), you wrote:
--*Brian
Good point, did that happen with a automotive style V8
or a horizontally opposed aircraft engine and what
kind of problems did he experience? Big rpm range
difference. Additionally I assumed Mike would have a
PSRU on his Chevy V8 and this should help. Spinning
the engine over with the starter will move oil through
the system but an initial prime before doing so can
save a bearing.
Doug
__________________________________
Do you Yahoo!?
Yahoo! Finance Tax Center - File online. File on time.
http://taxes.yahoo.com/filing.html
*-----------------------------------------------------------------------
--*To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://www.dcsol.com/default.htm
Archives public username "rebel" password "builder"
To contact the list admin, e-mail mike.davis@dcsol.com
*-----------------------------------------------------------------------
*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://www.dcsol.com/default.htm
Archives public username "rebel" password "builder"
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*
-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------