I am not sure if this goes here, but this has bugged me for a while.
The F-16 is made by General Dynamics (now part of Lockheed) The official nickname is Falcon, not Viper. Now before some of you have a poop fit, I did find more info. The name " Viper" came from the CAS (close air support) units like the one here in NY. Here is an explination on the "Fast Ass Cas" F-16 out of Syracuse, NY by a friend of mine thats a Lt that works there.
The Snake emblem has been a part of the 174th for years.
That's the basic symbol for "CAS" units. There is only one plane with the snake on the tail here - the commander's bird.
I believe this should end the confusion about the name
Chris