Research news
Bitesized UFOs #090: Encounter Over Indiana, October 1982
Two pilots flying a light aircraft over western Indiana had a strange and eventually terrifying encounter with an odd looking UFO on the morning of 24th October 1982. The description of the object is bizarre and almost incomprehensible, yet it followed the aeroplane in turns and banking manoeuvres before finally making a head-on, collision course pass.
See more (external link) 
https://www.youtube.com/watch?v=8BLuzA3Gt-0