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Why Does Mick West Censor Posts At Metabunk?

Yost
post Mar 22 2014, 01:49 PM
Post #1





Group: Student Forum Pilot
Posts: 66
Joined: 5-February 14
Member No.: 7,699



I have noticed that Balsamo has engaged in a debate with some of the "pilots" at Metabunk in this thread.

https://www.metabunk.org/threads/easyjet-73...ram-video.3160/

Pic of the VG diagram: https://www.metabunk.org/data/MetaMirrorCac...5756d1b393e.jpg

One of the claims they are making

This is from a user called Jazzy:

QUOTE
(The VG Diagram is) wrong because the words "Structural failure" are WRONG. What is meant is "anticipated structural failure".

Structural failure is anticipated beyond those borders but hasn't been dynamically explored.

Beyond the line rightward (SPEED) is normally transonic flight instability and flutter, and a small material safety margin of 10% and a plus/minus variability in specified material strength of a small fraction of that.

Failure due to flutter is itself time-dependent. So you can exceed a limit speed briefly - and more deeply in calm air.

Temporary excursions rightward on the graph are therefore possible. Indeed, they have happened.

You need to interpret such graphs with some greater foreknowledge of the history of their creation. Then you'll improve.


Another claim by cjnewson88

QUOTE
Not just 990.

You include China Air 006, with loss of control/structural failure, as if to say it was that speed+acceleration were what caused the loss of control and failure, but this is not the case at all. The aircraft lost control, then increased in speed, then pulled the g-forces which caused the structural failure. Most importantly the aircraft survived.

Same for TWA 841

Same for Easyjet 737

Your next misleading part is where you plot the 9/11 aircraft. You say UAL93 was in control? It was pointed towards the ground, inverted. You call that control?

Where are you sourcing the g-forces pulled by AAL77? According to your graph you're claiming AAL77 pulled over 3 g at over 500 mph. That is absolutely false. It never went above 2.25, and for the most part of the final few seconds sat between 0.5 and 2. We also know from the flight data recorder that up to 4 seconds before impact the aircraft was beginning to flutter. Almost every entry and description on your diagram is false, and you know it.


Rob, I do notice your activity in this thread already, though I believe it is necessary to inform the people here of this debate, because there are many pilots here that would be helpful in refuting these claims.

This post has been edited by rob balsamo: Apr 3 2014, 12:07 AM
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Yost
post Aug 18 2014, 02:29 PM
Post #2





Group: Student Forum Pilot
Posts: 66
Joined: 5-February 14
Member No.: 7,699



Today a new member has shown up in the Metabunk thread and posted this excerpt from a document written by a "test pilot".





He has also posted the same thing in this thread on DU

http://www.democraticunderground.com/11358038

The excerpts above come from this document.

http://www.mmopa.com/gallery/288_Sean%20Ro...%20Envelope.pdf

It appears to show the 50% Load Factor margin (which Seger still thinks applies to VD) as well as the supposed 15% VD speed margin.

The test pilot "Sean Roberts" says that the margin is demonstrated in a flight test, of course it does not say how it is demonstrated.

He has also posted these images from this FAA document: http://www.faa.gov/documentLibrary/media/A...c25-629omni.pdf in the DU forum .



Any input on this?

This post has been edited by Yost: Aug 18 2014, 02:34 PM
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Posts in this topic
- Yost   Why Does Mick West Censor Posts At Metabunk?   Mar 22 2014, 01:49 PM
- - Yost   Thank you again. Both aircraft have the same VMO,...   Apr 17 2014, 09:24 PM
|- - rob balsamo   QUOTE (Yost @ Apr 17 2014, 09:24 PM) Than...   Apr 17 2014, 09:53 PM
- - onesliceshort   Re:TWA841 There are a lot of discrepancies and co...   Apr 17 2014, 10:10 PM
- - amazed!   It is impossible to have a rational discussion wit...   Apr 18 2014, 10:31 AM
- - Yost   I have decided to address more of JDHess post...   Apr 18 2014, 03:02 PM
|- - rob balsamo   QUOTE (Yost @ Apr 18 2014, 03:02 PM) I...   Apr 18 2014, 07:42 PM
- - onesliceshort   Yost Re:TWA841 Information taken from the pdf li...   Apr 18 2014, 03:42 PM
- - Yost   So it's been two months now Rob, and not a pee...   Jun 13 2014, 07:17 PM
- - Yost   So I found this image in my Jeppesen textbook toda...   Jul 8 2014, 09:59 PM
|- - rob balsamo   QUOTE (Yost @ Jul 8 2014, 09:59 PM) Turns...   Jul 9 2014, 02:48 PM
- - Yost   Well Rob, looks like there is finally new activity...   Aug 5 2014, 03:58 PM
|- - rob balsamo   TWCobra says - "....the flight envelope is ex...   Aug 5 2014, 06:04 PM
- - Yost   Really informative post there Rob, of course, the ...   Aug 5 2014, 08:49 PM
|- - rob balsamo   QUOTE (Yost @ Aug 5 2014, 08:49 PM) A rea...   Aug 5 2014, 09:19 PM
- - Yost   QUOTE (rob balsamo @ Aug 5 2014, 08:19 PM...   Aug 5 2014, 09:59 PM
|- - rob balsamo   QUOTE (Yost @ Aug 5 2014, 09:59 PM) I adm...   Aug 5 2014, 10:15 PM
- - Yost   Today a new member has shown up in the Metabunk th...   Aug 18 2014, 02:29 PM
|- - rob balsamo   QUOTE (Yost @ Aug 18 2014, 02:29 PM) It a...   Aug 18 2014, 07:27 PM
- - Yost   QUOTE (rob balsamo @ Aug 18 2014, 06:27 P...   Aug 18 2014, 07:37 PM
|- - rob balsamo   QUOTE (Yost @ Aug 18 2014, 07:37 PM) I se...   Aug 18 2014, 07:50 PM
- - Yost   Well, this "Inam56" has brought some new...   Aug 29 2014, 12:53 PM
- - Yost   Correction: Disregard my part about the Wind Tunn...   Aug 29 2014, 01:26 PM
- - Yost   Here is a link about the 787 Wind Tunnel testing ...   Aug 29 2014, 01:45 PM
- - rob balsamo   Hi Yost, I didn't bother to read the posts at...   Aug 29 2014, 04:42 PM
- - rob balsamo   pacem/inman56 discussion split to here.... http:/...   Sep 1 2014, 05:06 AM
- - rob balsamo   Further Mike "TWCobra" Glynn discussion ...   Oct 25 2014, 09:26 PM
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