Examples
Examples
Try the starting example
- Fixed horizontal wheelbase (m)
- 2.7
- Virtual bicycle-model steering angle (degrees)
- 30
- Rear/front track used in this ideal model (m)
- 1.6
- Rear-axle midpoint turn radius (m)
- 4.676537
- Outer-front wheel-center path radius (m)
- 6.105936
- Inner-rear wheel-center path radius (m)
- 3.876537
- Outer-front wheel-center path diameter (m)
- 12.211873
Try another scenario
- Fixed horizontal wheelbase (m)
- 2.7
- Virtual bicycle-model steering angle (degrees)
- 45
- Rear/front track used in this ideal model (m)
- 1.6
- Rear-axle midpoint turn radius (m)
- 2.7
- Outer-front wheel-center path radius (m)
- 4.420407
- Inner-rear wheel-center path radius (m)
- 1.9
- Outer-front wheel-center path diameter (m)
- 8.840814
Calculation method
Calculation method
Rear-axle midpoint turn radius (m)
R=wheelbase/tan(virtual steering angle).
Outer-front wheel-center path radius (m)
hypot(wheelbase,R+track/2).
Inner-rear wheel-center path radius (m)
R−track/2, requiring a nonnegative inner radius in the supported model.
Outer-front wheel-center path diameter (m)
Twice outer-front wheel-center radius, excluding body overhang and tire width.
Symbols and units
- a
- Fixed horizontal wheelbase (m)
- b
- Virtual bicycle-model steering angle (degrees)
- c
- Rear/front track used in this ideal model (m)
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
- An ideal low-speed virtual-bicycle/track wheel-center geometry, not an actual measured turning circle, Ackermann linkage specification, swept-body envelope or road-clearance assurance.
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.
Further reading
OpenStax: ratios, unit rates and supplied measurement arithmetic ↗
Background reading; this does not imply endorsement or independent review of SumFizz.