Today's Message Index:
----------------------
1. 07:57 AM - Had my first major bout with Carb Ice. ()
2. 08:48 AM - Re: Had my first major bout with Carb Ice. ()
3. 12:35 PM - Carb Ice (Cessna386@aol.com)
4. 05:00 PM - 1956 Cessna (Barry Davis)
5. 06:01 PM - Re: 1956 Cessna (Cy Galley)
Message 1
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Had my first major bout with Carb Ice. |
--> Cessna-List message posted by: <n7155a@cox.net>
Just thought I'd write about this. Yesterday I flew to a meeting about 1 hour
away. Scattered clouds about 2000 agl, so I went up and over (nice and smooth).
Flying my 1957, 172 with O300, at about 6500 MSL, over the clouds, 60F at altitude
(about 90 on the ground).
I had set about 65% power, nearly full throttle, about 2500 RPM and leaned for
max EGT, flight following with Fort Worth Center.
About 30 minutes into the flight, I noticed the engine rpm had dropped about 100
rpm.
I adjusted the throttle to wide open as sometimes its works its way closed. got
maybe 25 rpm back.
I adjusted mixture richer, and actually lost an additional 50 rpm.
I then thought of Carb Ice and gave it full carb heat. The engine slowed down
to about 2250, ran rough for a minute or two, then came back to near 2400. Text
book case.
EGT was way low, SO I leaned it to peak, but still had about 2450 RPM.
I took the carb heat in about 1/4 inch, increase RPM back to 2500.
From there I fiddle woth mixture and carb heat to max the EGT.
Overall a good flight. I Didn't expect carb ice on a 90F day in July....
Mitch N7155A
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: Had my first major bout with Carb Ice. |
--> Cessna-List message posted by: <n7155a@cox.net>
Gary,
I thought the yoke shuttered ALL the time on those big 4 cylinder lycomings.....ha.
Mitch - with the smoooth running (underpowered) 6 cylinder..
> From: "Gary Kozinski" <kozinski@symbol.com>
> Date: 2003/07/10 Thu AM 11:09:09 EDT
> To: <n7155a@cox.net>
> Subject: Re: Cessna-List: Had my first major bout with Carb Ice.
>
> Yeah....been there...done that. It only takes you to experience this once to
never forget it again. Despite what the books say, it can happen anytime. Mine
was with CFII (172K) doing IFR approaches. My yoke began to shutter along
with the rough engine. Nobody said anything during the short time this all happened
then I yanked the Carb heat and bingo...everything got smooth again.
To my surprise, ,my CFII didn't pick up on this as quick as I did. I patted myself
on my back and remember the carb heat anytime something doesn't sound/feel
right.
>
> Gary
> 69 - 172K 0-320-E2D
>
>
> >>> n7155a@cox.net 07/10/03 10:56AM >>>
> --> Cessna-List message posted by: <n7155a@cox.net>
>
>
> Just thought I'd write about this. Yesterday I flew to a meeting about 1 hour
away. Scattered clouds about 2000 agl, so I went up and over (nice and smooth).
>
> Flying my 1957, 172 with O300, at about 6500 MSL, over the clouds, 60F at altitude
(about 90 on the ground).
> I had set about 65% power, nearly full throttle, about 2500 RPM and leaned for
max EGT, flight following with Fort Worth Center.
>
> About 30 minutes into the flight, I noticed the engine rpm had dropped about
100 rpm.
>
> I adjusted the throttle to wide open as sometimes its works its way closed.
got maybe 25 rpm back.
>
> I adjusted mixture richer, and actually lost an additional 50 rpm.
>
> I then thought of Carb Ice and gave it full carb heat. The engine slowed down
to about 2250, ran rough for a minute or two, then came back to near 2400.
Text book case.
>
> EGT was way low, SO I leaned it to peak, but still had about 2450 RPM.
>
> I took the carb heat in about 1/4 inch, increase RPM back to 2500.
>
> From there I fiddle woth mixture and carb heat to max the EGT.
>
> Overall a good flight. I Didn't expect carb ice on a 90F day in July....
>
> Mitch N7155A
>
>
>
>
>
>
>
> ________________________________________________________________________
> This email has been scanned for computer viruses.
>
>
> ________________________________________________________________________
> This email has been scanned for computer viruses.
>
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 |
|
--> Cessna-List message posted by: Cessna386@aol.com
My first bout w carb ice was in my 150M 0200 Conti. I had 35 hours and soloed on
my student ticket. Picked the plane up after having the A/P install 8 new plugs.
I can't remember the condition particulars, but it had been a mild November
day (in Maine prox 50 F) and then temp dropped rapidly towards evening. Picked
the plane up at the grass strip as twilight approached to fly 30 miles to
the class C where I hangered it. Just after TO I noticed the RPMs slowly winding
down at WOT. Still climbing out. I pulled carb heat and the backfires began,
then RPMs dropped to 700. So ... there I was, 700 ft, 700 RPM and 70 mph. I
had the tower freq dialed in already, called them to advise of my situation, all
the while looking for a spot to set down. Saw one over my right shoulder, dropped
40 degrees of flaps, looked for wires and landed in a farmer's back yard,
dragging the brakes up to his rear porch. All in about that amount of time!
A few years later I experienced it again at 9000 ft over the NH mountains while
on the way back from OSK. We had climbed to get out of the haze and humidity
while transiting the mountainous terrain. I spiraled down between the cumulous
and at 3000' the engine picked up again.
The reason I tell this is that the carb had a problem. The venturi had deformed
as the result of a backfire fire and was no longer circular, it was triangular!
Found this after a carb rebuild years later. Therefore more susceptable to
iceing.
Jim
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 |
|
--> Cessna-List message posted by: "Barry Davis" <bed@mindspring.com>
I have a 1956 Cessna 172 with 0-300. Next to the prop flange, there is a lever
coming out of the engine to control an adjustable prop. It looks like a push cable
from the dash would control it and without disassembly, looks like it controls
oil flow thru the crank. In the O-300 manual, it mentions this in one sentence,
and only says that some had a two position prop, climb and curise.
Now the question. What brand of prop? Is it still available? Did it work? Help!
Thanks
Barry Davis
Message 5
| 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 |
|
--> Cessna-List message posted by: "Cy Galley" <cgalley@qcbc.org>
Sensenich has a two positioned oil controlled prop but there was also the
Beech-Roby prop.
Cy Galley - Bellanca Champion Club
Newsletter Editor & EAA TC
www.bellanca-championclub.com
Actively supporting Aeroncas every day
Quarterly newsletters on time
Reasonable document reprints
1-518-731-6800
----- Original Message -----
From: "Barry Davis" <bed@mindspring.com>
Subject: Cessna-List: 1956 Cessna
> --> Cessna-List message posted by: "Barry Davis" <bed@mindspring.com>
>
> I have a 1956 Cessna 172 with 0-300. Next to the prop flange, there is a
lever coming out of the engine to control an adjustable prop. It looks like
a push cable from the dash would control it and without disassembly, looks
like it controls oil flow thru the crank. In the O-300 manual, it mentions
this in one sentence, and only says that some had a two position prop, climb
and curise.
>
> Now the question. What brand of prop? Is it still available? Did it work?
Help!
>
> Thanks
> Barry Davis
>
>
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! --
|