Power off 180 in Cirrus

Anyone of you a Cirrus Instructor??? I have been told to NOT do this in the bird. I have asked a CSIP but have not yet received a response. Others owners have told me to NOT do this and hold about 10in for a zero thrust condition.
 
ComplexHiAv8r said:
Anyone of you a Cirrus Instructor??? I have been told to NOT do this in the bird. I have asked a CSIP but have not yet received a response. Others owners have told me to NOT do this.
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I'm not a CSIP, but what would preclude you from doing an idle descent in the airplane?
 
I thought this was gonna be Cirrus bashing like, "how dooze I doo theese manueverz?"

My response: "pull the chute." I mean that's what I would tell the examiner.

Besides the cirrus won't do much good on a commercial checkride unless said applicant has done the CMEL because the Cirri don't contain retractable landin' gearz. "this here $70k arrow can do what a $600k cirrus can't - 'positive rate, gear up' " :D

Ohhh and typical cirrus pilot "what's the power setting for power off? blue button?"
 
ComplexHiAv8r said:
Anyone of you a Cirrus Instructor??? I have been told to NOT do this in the bird. I have asked a CSIP but have not yet received a response. Others owners have told me to NOT do this and hold about 10in for a zero thrust condition.
Click to expand...

I have no clue why. It's not like a twin where the blades feather.
 
ComplexHiAv8r said:
Anyone of you a Cirrus Instructor??? I have been told to NOT do this in the bird. I have asked a CSIP but have not yet received a response. Others owners have told me to NOT do this and hold about 10in for a zero thrust condition.
Click to expand...

I am CSIP and 300+ hrs in type. There's nothing wrong unless you're power off in a turbo from say FL250 (shock cooling).

In an SR20 I see nothing that would prohibit such a manuever. If you're doing CSEL manuevers in an SR22 you're just wasting dead dinosaurs
 
jhugz said:
I have no clue why. It's not like a twin where the blades feather.
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I do know that the sink rate in flare is bad, but I am guessing why is because a go around condition would not be safe getting airflow going again. Bird doesn't like to slow down, but when it does it doesn't like to fly.

This is why I asked....

For the response from the CSIP, thanks.
 
ComplexHiAv8r said:
I do know that the sink rate in flare is bad, but I am guessing why is because a go around condition would not be safe getting airflow going again.

This is why I asked....
Click to expand...

You will be fine doing this in a light single-engine piston.
 
ComplexHiAv8r said:
Anyone of you a Cirrus Instructor??? I have been told to NOT do this in the bird. I have asked a CSIP but have not yet received a response. Others owners have told me to NOT do this and hold about 10in for a zero thrust condition.
Click to expand...

Don't trust owners much, they probably just carry a little extra power because they can't do it with out. Idle power is very scary and may require reaching for a handle...
 
ComplexHiAv8r said:
I do know that the sink rate in flare is bad, but I am guessing why is because a go around condition would not be safe getting airflow going again.

This is why I asked....

For the response from the CSIP, thanks.
Click to expand...

Airflow isn't a problem. With these single lever airplanes there is some surging when you go from idle to full power because the computer is trying to match ideal prop speed to manifold pressure. A turbo will have a lag as well as the prop surge and it might be disconcerning, but nothing dangerous.

Zero thrust is not the point of this manuever though. The Cirrus will never feather, if the engine quits you will have a windmilling prop so idle power is the closest that you can simulate that. If the prop falls of without taking any part of the engine/spinner/cowling then sero thrust would be an appropriate thing to practice :rolleyes:
 
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