TURN 3-4 APEX TRAJECTORY
BANKING: 24° | ASPHALT TEMP: 114°F | DOWNFORCE COEFFICIENT: 0.94
SPIN OUT
T+2.40s
PEAK LATERAL G-FORCE
2.41G
Live: 0.00G
MAX REAR SLIP ANGLE
48.5°
CRITICAL OVERSTEER
ENTRY SPEED & APEX VELOCITY
185MPH
Apex: 142 mph
FRICTION CIRCLE UTILIZATION
128%
EXCEEDED (BREAKAWAY)
🚨
AUTOMATED INCIDENT DIAGNOSTIC REPORT
INCIDENT CODE: LAT-BREAK-53
Rear tires exceeded friction circle at apex; oversteer cascade initiated.
Banking Assist: +0.41G vertical normal vector
Yaw Velocity: 112 deg/sec rotation
Barrier Impact: SAFER Wall Glancing Deflection (58 mph)
INCIDENT PRESETS & CORNERING PARAMETERS
185 mph
120 mph210 mph
32°
10° (Shallow)45° (Aggressive)
0.82
0.50 (Worn / Marbles)1.20 (Fresh Sticky Goodyear)
24°
0° (Flat / Martinsville)33° (High Banked / Talladega)
85%
0% (Lift)100% (Wide Open)
Vehicle Dynamics & Friction Circle Methodology
Stock cars utilize rear-wheel drive V8 powerplants generating over 670 HP on intermediate ovals. When cornering at 180+ mph, lateral acceleration creates centrifugal force counteracted by the combination of tire friction (μ × FN) and track banking gravitational vectors (g × sin(θ)). When the combined vector of cornering lateral load and longitudinal drive force exceeds the friction circle boundary of the rear Goodyear tires, lateral slip angle spikes rapidly, inducing uncontrollable oversteer—just as observed in NASCAR’s viral turn mishap.