Found this yesterday while looking for an F111A north of vegas. At first i thought it might be part of the egress system ( The crew ejected successfully in the capsule ) that falls out when the capsule separates from the aircraft, but looking at the diameter ( 2" ) now thinking it might be part of a flare or a rocket.
Of interest is the spring loaded ' Fin ' that projects from the side. I was able to push it back in. That makes me think that the device was stored in a tube and when pushed out the spring deployed the fin.
Anybody got any idea what this is / came from?