Re: B757 "Heavy Jet"?

From:         hackett@southwind.net (Kim Hackett)
Organization: Your Organization
Date:         24 Jun 96 00:42:02 
References:   1
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>    Hello I was wondering if someone can help me understanding why the
>FAA decreed the 757 as a Heavy Jet.
>I know it fits the Cat. just by using its weight, but if I'm not
>mistaken that was not the reason behind the ruling.

I believe it was because of some incidences of wake turbulence
experienced by various aircraft following it.  The wing tip vortices
it produces are similar to that produced by larger, heavier, or
heavy (greater than 300,000 gross weight) aircraft.