Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!unmvax!tut.cis.ohio-state.edu!att!cbnews!military
From: elan!jlo@ames.arc.nasa.gov (Jeff Lo)
Newsgroups: sci.military
Subject: Re: F/A-18 modifications
Message-ID: <8709@cbnews.ATT.COM>
Date: 1 Aug 89 03:00:29 GMT
References: <8673@cbnews.ATT.COM>
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From: elan!jlo@ames.arc.nasa.gov (Jeff Lo)

In article <8673@cbnews.ATT.COM> nassio%cfassp12@harvard.harvard.edu (George Nassiopoulos) writes:
>I have gone to two airshows this summer and have noticed a slight
>modification to the F/A-18 Hornets.  At the first airshow, i
>
>The modification i am speaking about is the addition of two identical
>canard-like objects (winglets?) to the ``chines'' of the aircraft.

There was a bit of discussion on these additions in a recent AvLeak
in the story on the high angle of attack F/A-18 at Dryden.  They are
aero devices, not antennae or some such.  The story as I remember it
is that they are there to move vortices away from the vertical stab.
I heard (fourth hand or so, so don't trust the accuracy of this) that
there was a problem with cracks in the tails of some Hornets, and
apparently this little tab solved the problem by moving turbulence
away from the tail.  Any more confirmation or details from M F Shafer?
-- 
Jeff Lo, Elan Computer Group, Inc.
jlo@elan.com, ..!{ames,uunet}!elan!jlo
888 Villa Street, Third Floor, Mountain View, CA 94041, 415-964-2200