carburator heater

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flo76
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carburator heater

Post by flo76 »

hello all, i fly in a robin hr200 for my futur ppl and my instructor talk me about the carb heater : before reducing throttle pull the lever carb heater its do an ice protect of carburator but he say me that its a on/off lever not gradual lever. and in the a2a cherokee the lever its gradual: he is a lever on/off or a gradual heater in a cherokee 180 ? thanks and sorry for my bad english :) good flight.
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CodyValkyrie
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Re: carburator heater

Post by CodyValkyrie »

Even though it's a lever, you should operate it like an on/off switch. Just pull it all the way in or out.
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Heliguy
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Re: carburator heater

Post by Heliguy »

Yes, partial heat is not recommended, due to partly melted ice, breaking from the carb and entering further into the engine where it cannot be melted.
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Raptor05121
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Re: carburator heater

Post by Raptor05121 »

On the Cherokee, the carb heat cable is a continuous control, you can apply anywhere from open to closed, and any variation inbetween (0% to 100%). However, as others have said, it should be used as all or none.
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flo76
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Re: carburator heater

Post by flo76 »

ok i see ;) thanks all for your reply :)
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lesnyborsuk
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Re: carburator heater

Post by lesnyborsuk »

Hi all,

I am currently doing my PPL on C152. My FI told me that I can use half-opened carburator heater as prevention while flying though light rain. Well, you think this is bad habit?

ilgrillo
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Re: carburator heater

Post by ilgrillo »

I tried to search in the manual and in the forum without result.
What's the procedure for starting an engine with iced carburator?

I landed with a power off landing procedure, but once on the ground engine seems to suffer. It needs air. And won't start.
What I have to do?

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ratty
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Re: carburator heater

Post by ratty »

ilgrillo wrote:I tried to search in the manual and in the forum without result.
What's the procedure for starting an engine with iced carburator?

I landed with a power off landing procedure, but once on the ground engine seems to suffer. It needs air. And won't start.
What I have to do?

I think your only options are to either wait for the ice to melt, or reload the aircraft.
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Oracle427
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Re: carburator heater

Post by Oracle427 »

You can't melt ice without heat, the carb heat only works while there is exhaust. If the engine dies, you are a glider.

Carb heat is more if an anti-ice than de-ice system.

Partial carb heat MAY be used when a carb temp gauge is available. It is dangerous to use partial carb heat without a carb temp gauge as you may end up increasing the probability of carb ice formation with partial carb heat applied.
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ilgrillo
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Re: carburator heater

Post by ilgrillo »

Thanks, ratty and Oracle427. You've been precious. :D

mryan75
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Re: carburator heater

Post by mryan75 »

Carb heat is like being pregnant: you either are or you aren't. Either fully on or fully off, no in-between.

mryan75
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Re: carburator heater

Post by mryan75 »

Carb heat is like being pregnant: you either are or you aren't. Either fully on or fully off, no in-between.

mryan75
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Re: carburator heater

Post by mryan75 »

Carb heat is like being pregnant: you either are or you aren't. Either fully on or fully off, no in-between.

mryan75
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Re: carburator heater

Post by mryan75 »

Carb heat is like being pregnant: you either are or you aren't. Either fully on or fully off, no in-between.

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