Interactive Calculator

Spin Transit Gravity

Adjust station and transit parameters to explore how perceived gravity changes for passengers on a rotating space station's rail system — across both spinward and anti-spinward travel.

Parameters

adjust to update all outputs

Station diameter D

50 m50,000 m

Target gravity g_target

0.05 g1.0 g

Train top speed v_train

km/h

25 km/h500 km/h

Train acceleration a_train

m/s²

0.1 m/s²10 m/s²

Smooth acceleration

Target stop spacing d_target

100 m10,000 m

Dwell time at each stop t_dwell

5 s120 s

Station

Rim speed —

Angular velocity —

RPM —

Circumference —

Stops

Number of stops —

Actual stop spacing —

Segments to antipode —

Per-segment timing

Accel time / distance —

Cruise distance / time —

Decel time / distance —

Moving time per segment —

Total time incl. dwell —

Whole-journey timing

Half-journey time —

Full-loop time —

Avg. speed incl. stops —

Warnings

No warnings for current parameters.

Felt gravity over a single segment

one inter-station leg

Chart A — Magnitude of felt gravity (fraction of Earth g)

Spinward Anti-spinward Station baseline (g_target)

Chart B — Tilt angle from floor-normal (degrees)

Spinward (− backward tilt) Anti-spinward

Time scrubber — drag to explore

−5 s t = 0.0 s —

Phase: —

Felt gravity vector

— g
—

Phase summary

per direction, per phase

Phase	Time (s)	Speed (km/h)	Radial g	Tang. (m/s²)	Resultant g	Tilt (°)

03b

Peak values

extremes per direction

Metric	Spinward	Phase	Anti-spinward	Phase

Comfort assessment

per direction

↻ Spinward

—

Gravity range —

Max tilt —

Tang. / radial ratio —

Standing possible? —

↺ Anti-spinward

—

Gravity range —

Max tilt —

Tang. / radial ratio —

Standing possible? —