Stutter on power reduction

All this discussion reminds me why I don't go out on really hot days to do Touch and Goes. Want to do some landings? - I roll out and taxi back. May take longer and burn some 100LL, but seems a safer option. Fewer hiccups. I'm pretty aggressive about leaning in taxi.
 
denverpilot said:
I knew one old Skyhawk that would blubber and die at full rich at this altitude. It was misadjusted.

It's rare that I'll go full rich up here in the 182 -- it'll blubber and carry on like me with a head cold.
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So there's really no chance if it running briefly or causing you to land short? Good to know. :D
 
wrbix said:
All this discussion reminds me why I don't go out on really hot days to do Touch and Goes. Want to do some landings? - I roll out and taxi back. May take longer and burn some 100LL, but seems a safer option. Fewer hiccups. I'm pretty aggressive about leaning in taxi.
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I gave up doing touch n goes. I am confident but I switched to taxi back and start again so I go back through all of the processes and give myself time to reset. I don't mind the taxiing.
 
SixPapaCharlie said:
I gave up doing touch n goes. I am confident but I switched to taxi back and start again so I go back through all of the processes and give myself time to reset. I don't mind the taxiing.
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Sounds like a rational choice to me.
 
SixPapaCharlie said:
I gave up doing touch n goes. I am confident but I switched to taxi back and start again so I go back through all of the processes and give myself time to reset. I don't mind the taxiing.
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.....and isn't taxiing a Grumman fun?
Mastered the pirouette yet?
 
Stewartb said:
Airplane owners still use Brackett filters? Yuck!
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I have to unless I want to go Donaldson for $75, or a Challenger at around $200, in which case are paper filters and requires an AD inspection. After $78 for a small bushing, the $13 for a Brackett seems reasonable. Yeah, its messy and yeah it dribbles gooey stuff on the lower cowling but they're cheaper and have less arse pain when it comes to annual inspections.
 
Lachlan said:
So there's really no chance if it running briefly or causing you to land short? Good to know. :D
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???? In that misadjusted Skyhawk? Once it stalled a couple of times we sent it off to the mechanic for a proper adjustment. It quit on me with the owner aboard and then quit on the owner a few days later. I guess he was hoping it would fix itself the first time. LOL

But as far as landing short goes... I try to avoid needing power to make runways when I can. What's your question?
 
denverpilot said:
???? In that misadjusted Skyhawk? Once it stalled a couple of times we sent it off to the mechanic for a proper adjustment. It quit on me with the owner aboard and then quit on the owner a few days later. I guess he was hoping it would fix itself the first time. LOL

But as far as landing short goes... I try to avoid needing power to make runways when I can. What's your question?
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You said that O-320 carried on like you with a head cold. Knowing how you hate leaving words unsaid when a REALLY long story will suffice, I figured you were telling us that ol' Skyhawk ran on and on and on, whether too rich or too lean, it just kept going and going and going... (Har har.)
 
SixPapaCharlie said:
POH says mixture rich. Feedback from the Grumman group (Although this is not Grumman specific) is I should not always go mixture rich when landing.

Tonight Density altitude was ~4k feet

Downwind, reducing RPM from 2600 to about 2100 and it boggs down as though I pulled power. This lasts about 1 legit second and then it resumes.

I have had what I would describe as a hiccup or stumble during this power reduction on my last Lyc 320 almost like a single misfire and I have experienced that on this engine as well.

1. Should I remain lean? Does it sound like too rich briefly?
2. What exactly mechanically is happening that causes this?

I don't like it but all my searching turns up that it is a common experience.
Runup is fine / no apparent plug fouling detected on mag check.


Thanks in advance.
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Weren't you the guy that had/has a Cirrus that the engine quits on short final?
 
Lachlan said:
You said that O-320 carried on like you with a head cold. Knowing how you hate leaving words unsaid when a REALLY long story will suffice, I figured you were telling us that ol' Skyhawk ran on and on and on, whether too rich or too lean, it just kept going and going and going... (Har har.)
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LOL. But my airplane has an O-470.
 
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