Re: B757 "Heavy Jet"?

From: (Jim Tilbey)
Date:         07 Jul 96 14:09:02 
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In message <airliners.1996.1127@ohare.Chicago.COM>
        Pete Hughes <> writes:

> In article <airliners.1996.1070@ohare.Chicago.COM>, Gerard Foley
> <> writes
> >C. Marin Faure ( wrote:
> >: FAA simply moved the 757 into the higher category, which was more accurate
> >: as far as its wing characteristics are concerned anyway, thus increasing
> >: the spacing between the 757 and a following airplane.  End of wake vortex
> >: incidents.

> At Heathrow tonight a Sabena 737 pilot got a right telling-off for
> declining to take off close behind a 757.  He was told that in the UK
> 757s are not considered to be heavy and that 2 minute separation was not
> necessary.  The pilot in the aircraft behind the next 757 further down
> the queue immediately requested two minute separation as well!

According to the Manual of Air Traffic Services Pt1 the B757 is still
classified as a Medium in the UK. The only time it is treated
differently is for final approach vortex spacing when if a Medium is
following a Medium if the lead a/c is a B757 the spacing is increased
from 3 to 4 miles.

Jim Tilbey
Kirkwall, Orkney, UK