Townsend Brown's work?
Corroberating account!
It appears that according to Grusch's retelling of the witness's account of seeing a similar triangle-shaped craft, the paint on the car roof was affected by what seems to be Ionizing radiation. These high-energy particles caused the paint to turn milky white within just 24 hours of exposure to the Ionizing radiation emitted from the underside of the craft. Ionizing radiation typically travels in a straight line from its point of emission and remains unaffected by gravity. Therefore, one could postulate that the craft possibly had some form of radiators positioned on its undercarriage, as well as other areas like the outer edges.
witness depictions of other sightings within Australia
Attached are some images illustrating my observations from the night of April 1st 2011, 8:00pm AWST
I have a theory about why the craft is affecting its surroundings with air ionization. I believe this effect is linked to the radiators positioned along the craft's outer edge. These radiators serve to dissipate the immense heat generated by its propulsion systems in the form of Ionizing radiation, which could involve either antimatter/matter propulsion or an alternative system. Whatever the mechanism, it appears to be exceptionally powerful, producing byproducts that disperse into the surrounding air and cause ionization.
Similar Report
William Hamilton wrote: "I just returned from the Hi-Desert of Yucca Valley and Joshua Tree. I stopped in to say hello to an old friend who lives near Goat Mountain to the East, and beyond that is the 29 Palms Marine Base. My friends say they have seen a flying black triangle that has a blue glow around it and is hard to see against the night sky. It can do 90-degree turns, had a helicopter escort, and seems to be coming from the North Base at Edwards."
Link to sighting documentation: https://docs.google.com/document