Quote:
I think you're right that 7500 and 7600 are too easily confused. Hijack ought to be something else entirely. 7777 maybe. 7700 is a legacy of the 50s and 60s when ATC only had primary radar and the 77 (binary: 111 111) "double blossom" would make an emergency aircraft stand out on the scope. You'd think we could do better.
Was being facetious about 911. Wrote code in college.Originally Posted by Blue Dude
Squawking 0911 would be a really neat trick. Try it and see if you agree.I think you're right that 7500 and 7600 are too easily confused. Hijack ought to be something else entirely. 7777 maybe. 7700 is a legacy of the 50s and 60s when ATC only had primary radar and the 77 (binary: 111 111) "double blossom" would make an emergency aircraft stand out on the scope. You'd think we could do better.