Experiment

Southern Flight Time Check

Do published southern long-haul flight times match globe distances better than flat-disc distances?

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Materials Needed

  • official airline route page or airport schedule
  • flight tracker or timetable
  • distance calculator or the site's route tool
  • notebook

Setup Steps

  1. Choose a southern-hemisphere route such as Sydney-Santiago or Perth-Johannesburg.
  2. Record the published direct flight time from an airline or airport source.
  3. Compare the implied average speed using globe distance versus the flat-disc alternative.

Expected Calculation

On a globe, many southern long-haul routes still land in the normal subsonic airliner speed range. On a north-pole-centered flat-earth disc, the same routes often become so long that the implied average speed becomes much less credible.

Graphic

This visual shows the core geometry the experiment is testing before the real-world observation is made.

This experiment does not have a dedicated diagram yet.Link the page to a tool and observation diagram in a future content pass.

What to Observe

  • Published southern nonstop routes fit ordinary long-haul aircraft speeds when globe distance is used.
  • The flat-disc version often inflates the route enough to create a much less believable average speed.
  • This is especially obvious for southern-ocean and southern-hemisphere routes.

Interpretation

Real airline timings behave like globe geography, not like an expanding flat-earth south.

Sources

Evidence Card

Claim

Do published southern long-haul flight times match globe distances better than flat-disc distances?

Model Used

The experiment’s stated geometry or physical model with fixed inputs across comparisons.

Formula

On a globe, many southern long-haul routes still land in the normal subsonic airliner speed range. On a north-pole-centered flat-earth disc, the same routes often become so long that the implied average speed becomes much less credible.

Last Verified

2026-03-23

Assumptions

  • The protocol holds location, height, and distance inputs fixed while comparing observation to prediction.
  • A single ambiguous photo is not enough; repeatable measurements matter.
  • Primary-source references carry more weight than generic summaries.

External Sources

A page-specific source set has not been attached yet.

What Would Falsify This Page

A repeatable observation that matched the competing model better than this experiment’s stated prediction would count against this page.

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