Re: [GZG] Fighters and other military planes grounded by ash

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http://mail.csua.berkeley.edu:8080/mailman/listinfo/gzg-lOn Wed, Apr 21,
2010 at 8:28 PM, Tom B <kaladorn@gmail.com> wrote:

>
>
http://www.google.com/hostednews/ap/article/ALeqM5ihA_P62qhNj8msk8I14rjV
foNOKQD9F7NQVO0
>
> This gives an interesting environmental angle for volcanic or dust
> heavy planets - impairing or curtailing VTOL and aerospace fighter use
> during particularly dusty periods. You could fly through them if you
> had to for CAS, CAP, or Casevac, but you might be risking losing your
> bird.
>
> I recall reading sometime in the 2000s, a 747 flew through a dust
> cloud at over 30K ft, lost all 4 engines, and dropped to 20K ft or
> below before it got a restart. Had to do an emergency landing in
> Indonesia. That had to be pretty fearsome for the passengers and crew.
>
>
http://en.wikipedia.org/wiki/British_Airways_Flight_9

> I'm sure some sort of dust filter might help at the intake, but
> ultimately any form of turbofan or turbojet needs to suck in a high
> volume of air and if small silica-based chunks can sneak through, they
> can melt in the high temperatures of those engines. Not sure there
> really is much of a solution for this one.
>
> Would not affect helos as much or rockets much at all afaik. Mind you,
> the same aforementioned 747 apparently lost all visibility to the
> outside world due to the windows being covered in ash residue. That
> might be something some form of electrostatic repulsion might be able
> to dislodge (or not) and I suppose most all-weather military vehicles
> of the future would be able to fly by instrument alone (assuming
> nothing screws them up).
>
> Still, always looking for the gaming angle....
>
> TomB
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