FA-18 Transonic Portal Re-entry
You’ve seen an F-22 go supersonic, but have you seen an FA-18 emerge from a concentrated cloud of blue vapor!
You have now. What kind of atmospheric conditions would lead to such an apparition? National Geographic has the answer:
Photographer Kirk McMenamin, who submitted this image to National Geographic’s “Your Shot” writes:
“This is a shot of an FA-18 performing a high-speed pass that resulted in a vapor cone forming around the back half of the plane. When viewed head-on, it made the plane appear to be coming out of a porthole. The photo was taken during the 2009 Gold Cup Races on the Detroit River.”
Cool huh. I did some research, and by research I mean I just used Google image search, and found a much clearer image of this phenomenon:
And this easy to understand diagram:





