Re: Why no wingtips for B777???

Date:         08 Aug 97 05:41:16 
From:         Steve Lacker <CAN_SPAM@arlut.utexas.eedu>
Organization: applied research laboratories
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Mark Drela wrote:
> In article <airliners.1997.1581@ohare.Chicago.COM>, faurecm@halcyon.com (C. Marin Faure) writes:
> > Incidentally, one of the most
> > efficient wings in the sky (according to the airlines who fly it, not me)
> > is the 757 wing.  One of the "problems" 757 pilots have is slowing the
> > plane down, the wing is so efficient.
>
> Hmm. I wonder what they mean by "efficient" here.  Having a high L/D
> at approach speeds with partial flaps?  I'd say cruise Mach is much
> more important.

I think he is talking about the transition from cruise to descent, which
is done with a "clean" wing. Apparently, the thing has a tendency to
want to keep on flying fast.

--
Stephen Lacker
Applied Research Laboratories, The University of Texas at Austin
PO Box 8029, Austin TX 78713-8029
512-835-3286	slacker@arlut.utexas.edu