Examples
Examples
Try the starting example
- Rigid wheelbase (millimetres)
- 200
- Curve centerline radius (millimetres)
- 500
- Body overhang beyond each support (millimetres)
- 50
- Center inward offset (millimetres)
- 10.102051
- Body-end outward offset (millimetres)
- 12.347538
Try another scenario
- Rigid wheelbase (millimetres)
- 240
- Curve centerline radius (millimetres)
- 600
- Body overhang beyond each support (millimetres)
- 60
- Center inward offset (millimetres)
- 12.122462
- Body-end outward offset (millimetres)
- 14.817046
Calculation method
Calculation method
Center inward offset (millimetres)
R−sqrt(R²−(wheelbase/2)²).
Body-end outward offset (millimetres)
sqrt(R²−(wheelbase/2)²+(wheelbase/2+overhang)²)−R.
Symbols and units
- a
- Rigid wheelbase (millimetres)
- b
- Curve centerline radius (millimetres)
- c
- Body overhang beyond each support (millimetres)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Rigid straight body chord centered over a circular centerline, bogie centers separated by wheelbase. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. 0<wheelbase<=2×radius; overhang>=0; pure chord geometry excludes articulated/coupler motion.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.