Re: 727 with larger tail-top engine?

From:         eph72385@Rosie.UH.EDU
Organization: University of Houston
Date:         06 Nov 95 14:28:59 
References:   1
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In article <airliners.1995.1732@ohare.Chicago.COM>, libove@libove.mindspring.com (Jay Vassos-Libove) writes:
>I flew in to Jackson, Mississippi several times recently, and
>each time I saw a Federal Express or UPS (I don't recall which)
>727 which appeared to have a slightly larger tail-top engine.
>That is, the engine on top of the tail seemed to have a larger inlet
>(the front few feet of the engine) and then the rest of the cylinder
>was slightly smaller.
>
>Am I imagining this, or has FedEx/UPS/whoever modified some 727's
>such that the engine casings are different sizes from e.g. Delta's 727's
>which don't have that larger leading edge of the tail-top engine?


If I'm not mistaken, didn't the original 727s have a different
cowl design (perhaps more oval or larger)?  I know that the original
design produced turbulent airflow which caused stalls, which was
remedied by VGs inside the cowl.  I believe the -200 had a
redesigned cowl.


phil