Re: 737 NACA inlet with moving parts?

From: (John1082)
Organization: America Online, Inc. (1-800-827-6364)
Date:         23 Aug 96 13:45:04 
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The rough field 737 a/c had several small changes to set them apart.
There were small "wands" that projected out in front of the engine intakes
which would blast bleed air downward and forward of the intake to blow FOD
out of the way.  There was also some additional metal in the belly skins
to account for the beating taken by the skin when struck by gravel.  There
may have been changes to the undercarridge as well.  Don't know how many
were built; I think there may be a couple in India or Pakistan.
John Gezelius
Alexandria, VA