I am intrigued by the nervure which leaves the drift and crosses the roundel of the F4U.
Maybe you know anything about ?

Good spotting, I also wonder what that could be.
Thanks for sharing these photos btw.

HB

Probably this.
http://tailhooktopics.blogspot.ca/2014/01/f4u-corsair-wire-antenna-alternatives.html

Intersting
thx

Cheers Duggy.