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superbeachnut

(381 posts)
10. The article you presented got it wrong
Sun Jun 15, 2014, 01:27 PM
Jun 2014

The op ed piece you posted was nonsense. Yes

Nope, I flew for a living, I know secondary and primary and used transponders.

When 77 showed up in DC, it was on RADAR, and ATC had to warn traffic of 77. The planes did not disappear from RADAR. 77 is the only one where Center was unable to track the primary target because the scopes had no feed from primary. When 77 flew east it started to show up on scopes with primary feeds. DC ATC pointed out 77 to air traffic.

Unlike the OP where there was some glitch.

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