He then reloaded the camera with the same film and took pictures of the scenery in the ordinary fashion. When the film was developed, there was the saucer hanging in the sky. Menzel seems to have woven this story out of whole cloth. The UFO image is reflecting light and passed all computer tests for an image with substance. The image represents no known type of aircraft or experimental balloon.
Digital densitometry reveals a metallic reflection.
The A.P.R.O. Bulletin Pt. Hall, Richard H., ed. The UFO Evidence. The Mystery Disk over Trindade Island. The A.P .R.0 .