five-on-it / packages/sim/src/vehicle-classes / SIDE_SCRUB
Variable: SIDE_SCRUB
constSIDE_SCRUB:object
Defined in: packages/sim/src/vehicle-classes.ts:240
A car shoved sideways scrubs its tyres across the road instead of gripping (decided 2026-10-12, with ROLL_STEADY): while its centre slides sideways faster than speed (m/s) and more than ratio times as fast as it rolls forward (a slip angle past about 63°, never a drift, whose centre barely moves sideways), every tyre's friction circle is slip times its load instead of the class's frictionSlip. Gripping at four times its weight, a car pushed at its doors pivots over its far wheels; scrubbing at about its weight, it slides, and only a hard hit tips it.
Type Declaration
ratio
ratio:
number=2
How many times faster than forward the slide must be.
slip
slip:
number=1
The friction circle while scrubbing, as a share of the load.
speed
speed:
number=1
The sideways speed from which the tyres scrub (m/s).