[Milsurplus] afct antenna

[Larry]

http://imageevent.com/okbueno/mopic;jsessionid=h3xbdtmij2.camel_s?p=54&n=1&m=-1&c=10&l=0&w=4&s=0&z=2

At the clock time shown on the film of 01:35:28 behind the canopy on 
this RF-51D you see a loop antenna for the?  Don't recall seeing 
anything like this one before.  Any ideas of it's nomenclature or does 
anyone have one?  Wonder if they were particular to the RF-51 model as 
it was a recon type.

Larry
W0OGH