Experts: Mystery contrail was from Chinese missile

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SoonerATC

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Airport radar doesn't pick up objects... it is a receiver that picks up the signal produced by the transponders in the airplanes which identify them and provide information about speed, direction, altitude and aircraft type and ID.

Standard civilian airport radar does not pick up aircraft without transponders or missiles (which also do not have transponders).

Not true. Most radar installations are made up of two components; the primary and secondary. The primary (large dish) picks up skin reflections, the secondary (a small unit under the primary) interrogates the transponders. A few years ago I was coming to Tulsa and my transponder died. They asked me to make a couple of turns to verify me on the primary and then cleared me in.

Nraman is correct. Kudo's - most pilots aren't familiar with that.

If there was in fact an object out there (particularly the size of a sub launched missile), someone's radar should have picked it up, transponder or no transponder.

FTR, I for one, think it was a missile and someone is lying.
 

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