Everything Aero Documentation
Everything Aero is a symbolic aero & vehicle dynamics calculator, designed primarily for FSAE.
Unlike fixed spreadsheets or step-by-step calculators, Everything Aero:
Uses a general symbolic equation engine
Automatically assembles only the equations that are valid for your inputs
Solves systems symbolically, not numerically
Supports multiple operating points using indexed variables (e.g. \(v_0\), \(v_1\))
This makes it especially useful for:
Sensitivity studies
“What-if” comparisons
Problems with incomplete or over-constrained information
FSAE quiz / theory-style questions
The following pages explain how to use the calculator, how it works internally, and list all equations and symbols known to the solver.
Documentation
- Usage
- How It Works
- FS Rules Quiz Quick Start
- Known Equations
- Bernoulli Equation (two points)
- Continuity Equation for Incompressible Flow
- Reynolds Number
- Kinematic Viscosity Definition
- Aerodynamic Drag Force
- Aerodynamic Lateral Force
- Aerodynamic Yawing Moment
- Vehicle Speed from Velocity Components
- Vehicle Slip Angle at CG
- Longitudinal Force Equilibrium
- Rolling Resistance Force
- Longitudinal Power from Force
- Yaw Moment Equation of Motion
- Maximum Longitudinal Tyre Force
- Axle Normal Force from Wheel Loads
- Ideal Gas Law
- ISA Temperature Lapse Rate (Assumption)
- Coast-Down Time (Drag Only)
- Coast-Down Distance (Drag Only)
- Required Thrust vs Speed
- Required Power vs Speed
- Continuity Equation (Mass Conservation)
- CG Distance Definitions (Front / Rear)
- Tyre Vertical Stiffness Definition
- Tyre Deflection Change from Load Change
- Wheel Vertical Position from Tyre Deflection
- Suspension Motion Ratio (Displacement)
- Suspension Spring Force
- Suspension Force at Wheel
- Wheel Vertical Displacement Decomposition
- Suspension Deflection from Wheel Load
- Effective Wheel Rate
- Anti-Roll Bar Torque from Wheel Displacement
- Anti-Roll Bar Vertical Wheel Forces
- Wheel Displacement from Heave and Pitch
- Bump Stop Engagement Deflection
- Bump Stop Force (Linear, Engaged Only)
- Total Suspension Force Including Bump Stop
- Geometric Longitudinal Load Transfer (Anti-Dive / Anti-Squat)
- Net Longitudinal Load Transfer Including Geometry
- Effective Vertical Stiffness (Tyre + Suspension)
- Roll Stiffness Distribution (Front Fraction)
- Ackermann Inner Wheel Steering Angle
- Ackermann Outer Wheel Steering Angle
- Average Steering Angle (Bicycle Equivalent)
- Turn Radius from Steering Angle
- Available Lateral Force on Banked Surface (for flat roads, theta_bank=0)
- Banked Turn Lateral Force Limit
- Aerodynamic Downforce Axle Split
- Aerodynamic Efficiency (L/D)
- Barometric Formula
- Density Variation with Altitude
- Aerodynamic Lever Arms relative to CG
- Aerodynamic Pitching Moment about CG
- Aerodynamic Balance from COP Location
- Pitching Moment from Downforce Distribution
- Pitching Moment from Drag Force
- Longitudinal Inertial Force
- Total Longitudinal Load Transfer (mass based)
- Longitudinal Load Transfer Axle Split
- Longitudinal Load Transfer Per Wheel
- Lateral Inertial Force
- Lateral Acceleration in a Turn
- Total Lateral Load Transfer
- Lateral Load Transfer Axle Distribution
- Lateral Load Transfer Per Wheel (clockwise positive turn)
- Vehicle Weight Definition
- Static Normal Force (Total)
- Static Normal Force Per Wheel
- Drag-Induced Normal Load Shift Per Wheel
- Normal Force: Static + Downforce (Axle)
- Normal Force: Static + Downforce (Per Wheel)
- Normal Force: Static + Downforce + Drag Moment (Per Wheel)
- Static Normal Force Axle Split
- Aerodynamic Downforce (Total)
- Aerodynamic Downforce Per Wheel
- Drag-Induced Normal Load Shift (Axle)
- Drag-Induced Normal Load Shift (Per Wheel)
- Maximum Friction Force
- Load-Dependent Friction Coefficient (Generic Model)
- Maximum Longitudinal Acceleration (Friction-Limited)
- Maximum Lateral Acceleration (Friction-Limited)
- Maximum Cornering Speed (Friction-Limited)
- Resultant Tangential Force
- Friction Circle Utilisation
- Friction Ellipse Model
- Tractive Power Definition
- Braking Deceleration with Aerodynamic Downforce
- Centripetal Force Requirement
- Road Slope Longitudinal Force
- Maximum Longitudinal Acceleration (Traction-Limited)
- Known Symbols