nachiket wrote:Well that extension under the Phantom's nose housed the primitive IRST system (I think it was called the AAA-4 IR sensor). I think only the navy's F4J version didn't have it. They probably removed it and covered the housing with the metal tip.
Thank you. I first noticed that in a photo in 1962, in the first Observers Book of Aircraft I got. It has taken me 50 years to find out wtf that is.