It hasn't gone anywhere:
http://www.pprune.org/aviation-histo...nter-loop.html
And another in the Mil Aircrew forum:
http://www.pprune.org/military-aircr...ow-1958-a.html
The 22 Hunter loop is in this video. (At about 1m 30s)
FL
Last edited by Flying Lawyer; 22nd Jul 2011 at 18:22.