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Old 26th Aug 2008, 00:45
  #912 (permalink)  
HarryMann
 
Join Date: Jan 2008
Location: Herts, UK
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I seem to have started something mentioning timing runway acceleration to a pre V1 speed... which some hadn't ever heard of but quite a few others seem to have.
The whole theory was simply that whilst V1 was/is a prime parameter, it's 'calculated' for a set of conditions that can't always be guaranteed - Thrust profile; known TOW (debated earlier); Tyre drag due runway water/slush/brake binding; etc.
No good finding oneself at V1 and RTO if you're too far down runway -

Long since leaving the industry I'd assumed that today accelerometers (or an INS mode) would be keeping an eye on take-off progress.

No, I'm not advocating it or criticising anything, possibly a sideways glance at how 2-crew operations have changed the flight deck and more than anything from a design aspect, how critical it is to keep things as simple as ergonomically possible to reduce workload and aid rapid and clear decision making under stress.

ZQA297/30 - Thanks, a ray of light. As frank, well-meaning and educational a post as you'll get on here.

.. and whilst the media (in their own way) and indeed many on this board struggle to put some perspective on how such a dreadful accident could happen, I say a little prayer for all those lost souls last week - lest we forget what this is really about.
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