Simulated EFATO in C90

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Ugly Duckling
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Simulated EFATO in C90

Unread post by Ugly Duckling » Sun May 12, 2019 8:51 pm

Simulated EFATO in C90 opens pilots eyes
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Re: Simulated EFATO in C90

Unread post by jimdavis » Sun May 12, 2019 11:19 pm

Wow! Very interesting Paul, I would have expected it to be no problem in that aircraft.

I suspect that it would have performed a lot better had he "raised the dead", or "ridden on the live" - in other words banked 5 degrees into the live engine. It makes a massive difference.

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Re: Simulated EFATO in C90

Unread post by Ugly Duckling » Mon May 13, 2019 7:36 am

In light of the Duke prang I thought it would give an insight into what happens and the lack of climb performance even though there is 550 HP hauling you aloft
https://beechcraft.txtav.com/en/king-air-c90gtx#specs.
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Re: Simulated EFATO in C90

Unread post by Multirotordronepilot » Mon May 13, 2019 8:09 am

Jaaaa, guys it is to difficult to tell what exactly his procedures were there. And the C90 or any King Air is too complex of an aircraft to make any judgement unless we understand his procedures.

But by the correct procedure he should be looking to double the torque output which the dead engine was offering and then performance should be relatively unaffected unless double the torque output is achievable and certainly in a take off regime this could be but I still feel that the aircraft had much more to offer than what he was able to achieve.

For a good guide to procedures and anything King Air related please see the Tom Clements tutorials they are simply fantastic and no 2 deals with single engine procedures and performance.
Last edited by Ugly Duckling on Mon May 13, 2019 8:38 am, edited 1 time in total.
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Re: Simulated EFATO in C90

Unread post by Slick » Mon May 13, 2019 2:20 pm

I can't remember much about the system, but if he pulled the power lever all the way to idle, I'm pretty sure it would've added more drag than if the engine had actually failed and the auto-feather had activated. :?:
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Re: Simulated EFATO in C90

Unread post by Dobbs » Mon May 13, 2019 3:00 pm

Had things started going pear shaped, how long in seconds would it take for the idling engine to get to full torque?
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Re: Simulated EFATO in C90

Unread post by Multirotordronepilot » Mon May 13, 2019 5:01 pm

Dobbs wrote:
Mon May 13, 2019 3:00 pm
Had things started going pear shaped, how long in seconds would it take for the idling engine to get to full torque?
Short answer is not fast enough.

Roughly just a few seconds but also around double the time it takes for the aircraft to roll over if it really goes pear shaped. There is a video around of a B200 I recall performing a emergency single engine approach and its rolls over and inn at an alarming rate. I will try and find that, it is really not pretty at all.
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Re: Simulated EFATO in C90

Unread post by Multirotordronepilot » Mon May 13, 2019 5:05 pm

Multirotordronepilot wrote:
Mon May 13, 2019 5:01 pm
Dobbs wrote:
Mon May 13, 2019 3:00 pm
Had things started going pear shaped, how long in seconds would it take for the idling engine to get to full torque?
Short answer is not fast enough.

Roughly just a few seconds but also around double the time it takes for the aircraft to roll over if it really goes pear shaped. There is a video around of a B200 I recall performing a emergency single engine approach and its rolls over and inn at an alarming rate. I will try and find that, it is really not pretty at all.
Here you are.... It is a 90 as well.
Last edited by Ugly Duckling on Mon May 13, 2019 6:17 pm, edited 1 time in total.
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Re: Simulated EFATO in C90

Unread post by 426306 » Mon May 13, 2019 10:03 pm

Slick wrote:
Mon May 13, 2019 2:20 pm
I can't remember much about the system, but if he pulled the power lever all the way to idle, I'm pretty sure it would've added more drag than if the engine had actually failed and the auto-feather had activated. :?:
Correct. One can't really simulate these things in an actual aircraft without shutting things down. They climb away well when props are feathered.
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Re: Simulated EFATO in C90

Unread post by jimdavis » Mon May 13, 2019 10:21 pm

426306 wrote:
Mon May 13, 2019 10:03 pm
One can't really simulate these things in an actual aircraft without shutting things down. They climb away well when props are feathered.
So you can't select a zero-thrust setting to simulate a feathered prop?

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Re: Simulated EFATO in C90

Unread post by SandPiper » Tue May 14, 2019 3:56 am

jimdavis wrote:
Mon May 13, 2019 10:21 pm
426306 wrote:
Mon May 13, 2019 10:03 pm
One can't really simulate these things in an actual aircraft without shutting things down. They climb away well when props are feathered.
So you can't select a zero-thrust setting to simulate a feathered prop?

jim
Yip, sure can.

It’s not perfect, but good enough.
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Re: Simulated EFATO in C90

Unread post by jimdavis » Tue May 14, 2019 8:25 am

SandPiper wrote:
Tue May 14, 2019 3:56 am
jimdavis wrote:
Mon May 13, 2019 10:21 pm
426306 wrote:
Mon May 13, 2019 10:03 pm
One can't really simulate these things in an actual aircraft without shutting things down. They climb away well when props are feathered.
So you can't select a zero-thrust setting to simulate a feathered prop?

jim
Yip, sure can.

It’s not perfect, but good enough.
Thanks SP :D

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Re: Simulated EFATO in C90

Unread post by Kortbroek » Tue May 14, 2019 9:22 am

Am I right in thinking they chose a stupid location to do this exercise? By the look of things there aren't much margin for error and I wonder what if he wasn't able to out climb the terrain considering they were at the same level or lower than surrounding buildings and the odd antennae.

Would they have had enough time to get the second engine producing thrust if it had gone pear shaped? To my untrained eye it seems like somewhere a bit less populated with options to put it down would make more sense?
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Re: Simulated EFATO in C90

Unread post by Multirotordronepilot » Tue May 14, 2019 9:45 am

Kortbroek wrote:
Tue May 14, 2019 9:22 am
Am I right in thinking they chose a stupid location to do this exercise? By the look of things there aren't much margin for error and I wonder what if he wasn't able to out climb the terrain considering they were at the same level or lower than surrounding buildings and the odd antennae.

Would they have had enough time to get the second engine producing thrust if it had gone pear shaped? To my untrained eye it seems like somewhere a bit less populated with options to put it down would make more sense?
Kortbroek I share you're thoughts and a few others observation's which leaves me feeling that they had not properly prepared or briefed for what may occur during the exercise .
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