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Have you ever experienced carb ice with an injector carb?
This is a cross-post from the AeroVee and AirVW Yahoo groups.
Injector carbs of interest:
I have found one builder who describes a case of a Sonerai with a POSA
that liked to ice up in Texas.
Several others have responded with considerable experience and NO ice.
Anybody else out there?
--- In , jl [email protected] wrote:
Lets do it this way.
Anyone who has had a complete engine failure due to carb or intake ice
with a THROTTLE BODY CARB, say so now.
On Wednesday, January 26, 2005, at 05:32 AM, Tony Spicer wrote:
----- Original Message -----
From: "robert lord" [email protected]
Sent: Tuesday, January 25, 2005 10:43 PM
Subject: [aerovee] No carb heat?
as someone just wrote their sonex with the cowl offuaing an aeroV
ice forming on the outside of the intake tube . What would make you
that a great deal more ice was not forming on the inside where it
colder with much more air and humidity being squeezed from the air.
And did that "ice" disappear when carb heat was applied? Should you
to install carb heat, be sure to do some testing so as to not be
a false sense of security. Get a remote-reading digital thermometer.
was $12 at Lowes. Comes with a wire that is long enough to easily
engine compartment to cockpit. The thermocouple bead on the business
glued into a plastic fitting with a dab of RTV. Use an Exacto knife
carefully pry it out. Now it will fit thru a 3/32" hole. Route it
cockpit to engine compartment. Just upstream of where the scat hose
to the carb, cut a small slit and insert the thermocouple wire about
into the airflow. Clamp the wire to the duct with a tiewrap or piece
tape. Go fly. Run the engine at 75% power and note inlet temp. Apply
heat and note temp. In a certificated aircraft, the FAA requires a
temp rise, but in an experimental, there's no requirement. Just
good comparison. Next, remove carb heat, pull throttle to idle, slow
pattern airspeed, let things stabilize, and note temp. Pull carb
note temp rise. Next, and most important, convince yourself that
you saw for a rise is sufficient to prevent ice from forming.
When I moved into the neighborhood, I noticed my neighbors mailbox
painted purple with large white polkadots. Asked him why, and he
to keep the elephants out of his yard. Been here nine years, and
seen one yet. Must be working.
And to maintain my consistency, I say for the third time "Make your
on whether or not to use carb heat based on how you see the facts."
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