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engine failure at take off

 
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williamtsullivan(at)att.n
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PostPosted: Tue Oct 12, 2010 10:09 am    Post subject: engine failure at take off Reply with quote

Lucky! I don't remember anyone mentioning icing in Florida before. Thanks for a very comprehensive report. What make/size engine?

      Bill Sullivan
      Windsor Locks, Ct.
      FS 447

--- On Tue, 10/12/10, mark.shimei <mark.shimei(at)gmail.com> wrote:

Quote:


This happened Sunday,70deg morning in sunny Florida. No one else was flying at the time,just me.

Took off on grass strip 22,climbed to 500',pulled engine to idle and did a 180 to land opposite direction on grass RWY. I had plenty of time to descend,plus had to bleed off speed/altitude.
Touched down about 1/3 of the way down,slowly added power and climbed out over the trees at the end and started to level off when it happened.

I was about 450' (GPS) when it just went to idle and died. My first thought: I do have an extra top end at home.......

By the time it stopped,I had already turned to the right and was headed back to the airport,which was just under 1/4 mile away. A church goer below was watching me (I guess he heard it stop,was waiting for the crash?) as I did "S" turns to loose some altitude,since I knew I could make the field.

I landed lightly on the left wheel and turned about 90 deg to the left toward the row of hangars,still keeping the right wheel up.

The plane settled down on both wheels as I got on the taxiway and slowed down enough to make 1 more left turn to my row and rolled to a stop.

The church goer was still standing there,mouth open.

NONE of my airport buddies were there to see it...oh well...video would have been nice.

Pulled the engine thru,still had compression...Looked everything over that could have broke/came loose/fell off...nothing.

Turned the US around and started it on the first pull. Listened for funny(not so funny) noises,taxied back out,and took off. I stayed near the airport for 25 min or so,then wandered off over areas I could land if needed.

CONCLUSION: I havent flown in this cool of weather for 6 months or more. The humidity was high (Florida,of course) and the temp was just cold enough for carb ice.
I forgot to mention the carb/manifold was cold after the engine was off for at least 3 minutes.

No more idle descents in this weather,,,,I always keep power on approaches,except this time.

Have flown 2 hours since,no issues.

Mark.........................who believes in practicing dead stick landings. # 25 was the real deal..


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Dana



Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

PostPosted: Tue Oct 12, 2010 3:25 pm    Post subject: engine failure at take off Reply with quote

At 01:36 PM 10/12/2010, Mark Rikio wrote:

At 01:36 PM 10/12/2010, Mark Rikio wrote:
Quote:

CONCLUSION: I havent flown in this cool of weather for 6 months or more.
The humidity was high (Florida,of course) and the temp was just cold
enough for carb ice.
I forgot to mention the carb/manifold was cold after the engine was off
for at least 3 minutes.

No more idle descents in this weather,,,,I always keep power on
approaches,except this time.

Do you recall the actual temp and dewpoint? What engine and carb?

The funny thing is that it didn't quit until you got to 450', after the
engine had been running at full power again for a little while. Did it
seem to have any less than normal power just before it quit?

Many people say 2-strokes with slide carburetors don't ice up, but they do,
under the right (wrong) circumstances.

-Dana
--
Celebrate Freedom... read a banned book.


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Thom Riddle



Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

PostPosted: Wed Oct 13, 2010 5:37 am    Post subject: Re: engine failure at take off Reply with quote

Florida climate in the fall is more likely to cause carb ice than upstate New York this time of year. See image of carb icing conditions.

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carb icing chart.jpg
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Carb Icing probability
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carb icing chart.jpg



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Thom Riddle
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