PARALLAX

INV-001 / Evidence review 001-B

Radar

Does the radar record show an incoming missile, another aircraft, or only ambiguous returns?

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001-B

Radar

Moderately favors internal-event explanation

Does the radar record show an incoming missile, another aircraft, or only ambiguous returns?

The radar record provides no affirmative incoming missile track and therefore moderately favors the internal-event explanation, while later testing keeps missile non-detection from being conclusive.

Established Observations

  • FACTInvestigators collected radar data from nine systems across five states.ntsb-report
  • FACTThe NTSB reported no coherent radar track intersecting TWA Flight 800 and no sequence judged consistent with an incoming missile.ntsb-report
  • SUPPORTED INFERENCESlow unidentified nearby targets, estimated around 12 to 30 knots, are weak candidates for an attacking missile.ntsb-report
  • DISPUTEDAn apparent 400+ knot Islip radar sequence moving away from the accident location remains dependent on technical interpretation.ntsb-report2013-petitionntsb-response

Evidence Quality

High for the existence of collected radar data; technical re-analysis of anomalous returns remains specialized.

Conventional Interpretation

  • No incoming missile track was found across the collected radar record.
  • Unidentified slow returns were consistent with boats rather than aircraft or missiles.
  • The high-speed apparent track was interpreted as anomalous radar propagation or reflection.

Unconventional Interpretation

  • Radar can miss small missiles, so non-detection does not prove impossibility.
  • Critics may argue that some anomalous returns represented real objects.
  • The radar record needs technical expertise before every anomaly can be independently settled.

Radar coverage

Investigators collected radar data from all known relevant sources, including FAA, military and defense, NORAD-related, and other radar systems.

The NTSB reported data from nine radar systems across five states. That breadth gives the radar record substantial weight.

No coherent incoming missile track

The NTSB reported no coherent radar track intersecting TWA Flight 800, no identified missile or projectile track approaching the aircraft, and no radar sequence judged consistent with an incoming missile.

This weighs against the missile hypothesis, but it is not automatically conclusive.

Unidentified nearby targets

Radar detected several unidentified primary targets in the broader accident area. Some were within several nautical miles of the aircraft.

Their estimated speeds were approximately 12 to 30 knots, which investigators considered consistent with boats rather than aircraft or missiles.

Could radar have missed a missile?

Later NTSB missile-visibility testing demonstrated that intact small missiles could fail to produce an identifiable radar ground track.

No missile appears on radar does not logically equal a missile was impossible. Equally, radar could miss a missile is not evidence that a missile was present.

Open Questions

  • Does the unusual high-speed radar sequence have a fully satisfactory technical explanation?
  • Can independent radar specialists reproduce the NTSB anomalous-propagation interpretation?
  • What radar signatures would be expected from each plausible missile scenario under the conditions present that night?

PARALLAX Assessment

MODERATELY FAVORS INTERNAL-EVENT EXPLANATION

Sources