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echo: barktopus
to: Frank Haber
from: Adam Flinton
date: 2005-01-21 19:32:36
subject: Re: A380 Stress Margins

From: Adam Flinton 

Frank Haber wrote:

> Which prompts me to ask...
>
> Since our wigwag-tail_off A300 accident in Queens, I've wondered, with no
> background in the field at all, whether Airbus has a history of cutting it
> close on stress margins.  Years ago, Boeing had a reputation of building 'em
> stronger, and the perception was reinforced by the Hawaii 737 fatigue-related
> peelback incident.  My pilot friends used to hate the A300's fly-by-wire for
> restricting their options in crisis situations, instead imposing
preprogrammed
> sets of actions.  Yet this is directly antithetical to an A300's letting that
> copilot slam his rudder back and forth in a resonant fashion.
>
> This crowd knows all the technoid dirt in the world.  Anyone have a
background
> source?
>

My guess is that the stress loads are low in that there are already desings
for stretched.increased size versions.

WRT FBW.....most modern fighters are fbw & yet you don't see
Eurofighter, F16, F18 etc pilots complaining.

Adam

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