winglet-equipped 727-200

Date:         20 Mar 94 22:29:57 PST
Organization: University of Colorado, Boulder
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While flying through SLC yesterday, I saw a Delta 727-200 with winglets
(N511DA). Since I have never heard of such a beast before, I thought this would
make a good post to sci.aeronautics.airliners.  Before I get a chance to post,
David Lednicer posts a description of the plane: a Valsan conversion. This
group is amazing: you only have to THINK of a question and it gets answered.

I would, however, be curious to hear any details about these planes. 

Dewayne Matthews