737 tail question

Date:         15 Apr 97 03:22:40 
From:         "Hans Jakobsson" <hansj@algonet.se>
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Hello,

sometimes I've seen a row of dark pins sticking out of the fuselage on
737-200s. The pins (or nails) are placed in a neat row on each side of the
fin, between the stabilizer and fin root. It seems that they are retracted
into the fuselage when the aircraft is flying. What are these?

Regards
Hans J

--
Hans Jakobsson, Sweden
hansj@algonet.se
http://www.algonet.se/~hansj/index.htm