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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:23 
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I really don't have a dog in this fight - I want the jet to be a tremendous success... but... that video doesn't seem to show much beyond the beginning of a chute deployment. Does anyone know if the end result was a success? The parachute finish opening? Was the "landing" survivable? Etc.


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:26 
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Username Protected wrote:
I really don't have a dog in this fight - I want the jet to be a tremendous success... but... that video doesn't seem to show much beyond the beginning of a chute deployment. Does anyone know if the end result was a success? The parachute finish opening? Was the "landing" survivable? Etc.

The vid shows the chute fully open.


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:29 
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I would think that maybe the chute was designed to be "ejected" from the plane and then the plane could make a normal landing. Just a thought. That sure would be an expensive test if it went all the way down.

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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:33 
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I don't know much about parachutes other than they are supposed to keep you from hitting the ground too hard. Was my video cut she Orr or is it fully opened when it is narrower at the bottom of the chute than the middle area?

Username Protected wrote:
I really don't have a dog in this fight - I want the jet to be a tremendous success... but... that video doesn't seem to show much beyond the beginning of a chute deployment. Does anyone know if the end result was a success? The parachute finish opening? Was the "landing" survivable? Etc.

The vid shows the chute fully open.


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:38 
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You’ve got to watch a little further. 45 seconds in...


Please login or Register for a free account via the link in the red bar above to download files.


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:44 
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Thanks Jesse - for some reason my video stopped before that, when the chute was not yet fully deployed. Tried several times, but it kept stopping at the same place.

Username Protected wrote:
You’ve got to watch a little further. 45 seconds in...


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:45 
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Username Protected wrote:
I would think that maybe the chute was designed to be "ejected" from the plane and then the plane could make a normal landing.
Pretty sure that's what they did with the parachute tests on the piston. No point in trashing a plane for each test.


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:48 
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I'm really disappointed in Ciholas. I would have expected a post about the video either being fake or a radio control model.
Didn't he also say the chute would come out of the nose and the plane would land tail first?
#itwillneverwork

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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 21:50 
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I would think that maybe the chute was designed to be "ejected" from the plane and then the plane could make a normal landing.
Pretty sure that's what they did with the parachute tests on the piston. No point in trashing a plane for each test.

That plane looked way too low to have time for a restart on the engine, unless it was at flight idle, and I dont know if it would stay lit?
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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 22:19 
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That plane looked way too low to have time for a restart on the engine, unless it was at flight idle, and I dont know if it would stay lit?
Clearly it either stayed lit or restarted, since the plane (N251CV, serial #003) is still on the FAA registry and FlightAware shows it still flying, long after that test video was made.


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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 22:30 
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Clearly it either stayed lit or restarted, since the plane (N251CV, serial #003) is still on the FAA registry and FlightAware shows it still flying, long after that test video was made.

Then that is one very brave pilot!! :clap: :clap: I think I would have wanted a bit more time to recover. What if all but one shroud line severed? There a lot of things that could have gone wrong that low!

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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 22:52 
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That plane looked way too low to have time for a restart on the engine, unless it was at flight idle, and I dont know if it would stay lit?
Clearly it either stayed lit or restarted, since the plane (N251CV, serial #003) is still on the FAA registry and FlightAware shows it still flying, long after that test video was made.


Cirrus has put a lot of the SR20/SR22 back in the air after a chute pull.
So it may also be possible with the SF50...

Tim

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 Post subject: Re: Cirrus SF50
PostPosted: 17 Oct 2017, 23:06 
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Great system with no issues.
Keep it simple and copy it.


TBM fuel system is not without its Gremlins. There was one fatal and one non-fatal fuel starvation accidents in TBM's with fuel onboard. Both related to fuel unporting in uncoordinated flight.

https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20141005X41513&AKey=1&RType=Final&IType=LA

https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20110906X72514&AKey=1&RType=Final&IType=FA

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 Post subject: Re: Cirrus SF50
PostPosted: 18 Oct 2017, 05:54 
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Username Protected wrote:
Didn't he also say the chute would come out of the nose and the plane would land tail first?
#itwillneverwork

Yes he did!


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 Post subject: Re: Cirrus SF50
PostPosted: 27 Oct 2017, 01:09 
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I'm really disappointed in Ciholas. I would have expected a post about the video either being fake or a radio control model.

I want to see all of it.

If it was a full up test, why did Cirrus beg off doing it for certification?

Quote:
Didn't he also say the chute would come out of the nose

Yes, on Dec 23, 2015:

"Chute is mounted in the nose."

The SF50 chute is in the nose. That's the only place it could be. Do you think I said something different?

Quote:
and the plane would land tail first?

No, I don't believe I ever said that.

Link to post or it didn't happen. JC's assertions count zero in this regard.

Mike C.

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