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Gulfstream G650 Crash Was Simulating Single-Engine Takeoff

The airplane ... was performing a take off with a simulated engine failure to determine take-off distance requirements at minimum flap setting. ( 更多...

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Matt Worthen 0
so i guess the test was a failure?
Jason Harkins 0
Matt, you are a jacka**
alfadog 0
Two test pilots in the front seats doing what they had planned to do; hard to believe this was "pilot error" as I have seen mentioned elsewhere. Condolences.
Robert Duke 0
Matt....You're an *** This crew gave their lives so you and I can enjoy the benefits of safe and exemplary air travel. Please...Your comment is totally way out of line considering the circumstances of this incident. An apology on this board from you is highly recommended in respect to those involved. Show some respect and courage!!!
Mike Ziemann 0
Agreed with Jason and Robert.
Toby Sharp 0
Come on man, use your brain and think about what you say before you say it. Condolences to the family of the 2 pilots and the 2 test engineers.
Wingscrubber 0
I hope the families of the pilots/engineers get some sort of compensation, an insurance payout or something. I've been on experimental test flights before (albeit for a different airframer) as an on-board test engineer and have personally worried about what would happen if there was an accident. I would want my family to be taken care of financially after such an event.
Robert Duke 0
Wingscrubber, Rest assured the families will be taken care of. I also work for another airframer and if Gulfstream follows standard industry protocol in regards to test pilots/engineers on official test flights they will be compensated. I am employed by the direct competitor to the G650 and this event just rips my heart out, hope the program doesn't suffer too much. This is a fantastic acft and it keeps us on our toes! Condolences to the families and co-workers.
StarFlyr 0
I think Matt strayed over here from HufingtonPost and yes, his comment should be removed and he should be prevented from further posting here.

As a retired airline pilot, I'm wondering about this test. Of course, we did ALL our engine out work in a simulator. I'm wondering first of all, does the FAA require an actual engine out test for certification of a new model? Second, does this test actually require the engine to be shutdown at V1 or just reduced to idle thrust? If it's the latter, it seems to me that quickly bringing the "dead" engine back to full thrust would quickly get the ship and crew out of this hole.
John Casebeer 0
I agree. Matt is a jerk. These paople gave their lives advancing aviation. I also agree with StarFlyr. Something must have happened to the aircraft. RIP.
egnilk66 0
I had just looked for this plane on Flightaware yesterday.... I saw it in the G650 Rollout video....I had no idea that it had gone down. Sad stuff.
Robert Duke 0
Starflyer, Could it be a situation where even if the engine was at idle for V1 that the spool up time is too long to help them when something else got them into trouble? I see they were using min. flap settings too for the test. I do know this is a fairly common test for new acft type certifications.
Joanne Gibbs 0
Matt's comment was off-handed and silly, but ease up everyone! I am sure his pointing out the obvious was what most do these days and meant nothing hurtful by it. Prevented from further posting? Ridiculous. I certainly find the Huffington Post (note spelling) comment much more offensive and designed to be so. I enjoy this forum, do we have to be insulting? And political?
Robert Duke 0
You're right Joanne, my emotions got the best of me but I'm good now.
Even with CFD and optimized flight dynamics, there are unknowns. Thank you to all the flight test pilots/engineers who keep us out of bad places.
Matt Worthen 0
I am sorry for my comment, didn't think I would stir things up like that. This is an aviation website with pilots and was just trying to bring light to the situation. I'm pretty sure the family members would not see this. No disrespect to the pilots or families.
RIP to the brave souls. Hope the families realize they have heroes.
TTail 0
"simulating" what does that mean?? if they actually pulled back on one of the throttles, that wouldnt be a simulated engine out, that would be an ACTUAL engine out wouldnt it??
Matt Worthen 0
No its considered simulated when the throttle is pulled all the way back. the fuel is not cut off to the engine but the throttle is retarded all the way back (so engine is still running and producing thrust)
Mark Kimble 0
Matt you are forgiven. We all know the dangers of flying. This crew gave it all. All pilots are compelled to keep learning and training. A big thanks to all test pilots, engineers and their families.
Why didn't these pilots do this test in an actual simulator? Didn't they think that something like this might actually produce a negative result?
Matt Worthen 0
No, you should see some of the tests we have to put airplanes through. I think its called the Mach buffet test is sooo dangerous the crew has to wear parachutes. They fly the plan near Mach 1 and it shakes violently from the shock waves. This test by gulfstream was not very dangerous.
David Sims 0
Robert, Where do you think the data to program the simulator comes from? It takes actual flight test to gather that data. Unfortunately, sometimes test flights can have tragic consequences.
I've been a Gulfstream pilot for so many years,my condolences to the families of the two pilots and engineers.
krishna menon 0
well to me this a coincedence of misfortune & pure bad luck.
Robert McRae 0
Too late Matt. Once a thoughtless comment is made it is made. One of the pilots was married to a dear friend of mine and leaves 3 little boys behind as well. Not a time for thoughtless comments.
Matt Worthen 0
You are making it sound personal. It wasn't
Brian Bishop 0
Deep breath folks. This was indeed a great tragedy, especially for your friend (Robert) and those three boys. While testing new aircraft is certainly a dangerous business, unfortunately death is a part of life. In my business, we recently had a fatality where a cargo ship worker fell 30 feet into a cargo hold. The greatest legacy for these brave souls is the eventual success and safety of the GVI. The pilots flying her today are safer now because of the hard lesson learned that fateful day. I am sure the Gulfstream family will memorialize those lost in some significant way. It's great that she's flying again. Matt has apologized for the insensitivity of his original comment, so let's move on.

This topic does bring out some very interesting information regarding the testing of new aircraft (at least to me anyway). I for one would love to learn more about it if anyone knows of sites containing this kind of info maybe they could post some links. Thanks to you all. Have a great day.


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