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Report no. 2 from Sun n Fun - The Heintz clan reactions t

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frankroskind(at)HOTMAIL.C
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Posted: Wed Apr 22, 2009 5:50 am Post subject: Report no. 2 from Sun n Fun - The Heintz clan reactions t

The NTSB is not a higher level government authority than the FAA C except when reviewing certificate actions.  The NTSB is an independent government agency and you can read about them at www.ntsb.gov .  The FAA is part of  the Department of Transportation C and answers to the Secretary of Transportation C who in turn answers to the President C usually through the Chief of Staff.  The FAA is a little more independent within DOT than the other modal agencies C such as NHTSA C FRA C FHWA C FMCSA C FTA C RITA and PHMSA C but is not as independent as the STB.  NTSB has aawesome resources and analytical capabilities C but I know of NTSB recommendations which would adversely affect safety as a whole.  The DOT agencies are responsible for weighing those kinds of risks.  For example C FAA did not require use of childrens' safety seats on aircraft C because it estimated that mroe trips by highway would result from such a rule C leading to more fatalities on the highways than would be saved in airliner accidents.  NTSB is good C but is is only a key part of hte safety team C not the whole team.



do not archive



[quote] world.  The NTSB is not an engineering agency -- they are a higher 

 level government authority than the FAA.  

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Juan Vega Jr

Joined: 13 Jan 2009
Posts: 157

Posted: Wed Apr 22, 2009 7:42 am Post subject: Report no. 2 from Sun n Fun - The Heintz clan reactions t

Paul,

you need to sell your plane and move on. Dude, the emails you are spitting out are just plain... I am searching for the word,   crazy?  self absorbed?.

NTSB end all be all?  you have the answer and only you? 

Happy Kido?  



I need to get some popcorn, cuase this email stream is making for awesome  entertainent!



Juan

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ggower_99(at)yahoo.com
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Posted: Wed Apr 22, 2009 8:37 pm Post subject: Report no. 2 from Sun n Fun - The Heintz clan reactions t

Welcome back Paul, 

  

 Saludos

 Gary Gower.

 Do not archive.



--- On Wed, 4/22/09, Paul Mulwitz <psm(at)att.net> wrote:



  	  Quote: 	
		  From: Paul Mulwitz <psm(at)att.net>

Subject: Re: Report no. 2 from Sun n Fun - The Heintz clan reactions to the NTSB.

To: zenith-list(at)matronics.com

Date: Wednesday, April 22, 2009, 8:23 PM



 	  Quote: 	
		  --> Zenith-List message posted by: Paul Mulwitz <psm(at)att.net>



Hi Jay,



I believe your comments are quite valid and interesting so I will try to

continue the discussion down your path.  I have decided the flaming is just

irritating and not worth reply.



I will try again to deal with the engineering vs. political issue here.



There are definite engineering questions about the quality of the Zodiac XL

design.  So far as I know there have been exactly zero reasonable answers to

most or all of them.  The exception to this in my mind is the new issue raised

by the NTSB report about the stick gradient.  That one seems to be a very simple

engineering flaw in the design.  I personally don't know that it is true or

false, but it should be nearly child's play to confirm it and design a fix 

- compared to the other issues at hand.  I believe Matthew would agree that

there is no real engineering confirmation of most of the issues (the stick one

is brand new, while the accidents have been going on over years).  He has said

many times in my presence that the engineering report he expects soon is needed

for him to believe there is a problem in the design.



This is an entirely different question than the NTSB "Authority" in

this matter.  My understanding (subject to more correction if needed) is that

their role is in accident analysis which is not even close to engineering design

analysis.  The two are completely different efforts done with different data and

different thinking.  Their conclusion which seems completely clear to me is that

the XL needs aileron balancing.  I merely accept their conclusion because they

made it.  I don't know if it is right or not from an engineering analysis

point of view, but I don't think they or the FAA or I care one iota if the

engineering analysis agrees with the NTSB ruling or not.  They are just

different issues.



If everyone could just agree that these are separate issues, then the whole

mess could be cleaned up very quickly.



I see the design process as disconnected from the accident analysis process. 

If it is needed to implement a design change, then it doesn't really matter

why the change is needed to do a professional job of designing the change.  I

know this sounds crazy, but please give me a little respect here.  I spent a

career doing just this sort of thing in the electronics and communication

industry.  I really do know what I am saying here is rational even if the whole

group of non-engineers in the group doesn't get it or disagrees.



I am out of time for now, so please forgive me if I missed an important point

or two.  The restaurants here in Florida are getting close to closing time and I

want my dinner.



Paul

XL grounded

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