"Directional stability" refers to the ability of an object, like a vehicle or aircraft, to maintain a steady course or path without wobbling or drifting off track. It means that the object stays pointed in the desired direction without constant corrections or adjustments.
Full definition
It possesses a long wheelbase that improves the quality of the ride, enhances interior space, and helps
directional stability as well.
For instance,
directional stability leaves a lot to be desired as soon as the vehicle encounters dips, bumps, and other seriously uneven surfaces.
Integral Active Steering gives the new BMW 5 Series Sedan
excellent directional stability on highways, while around town the steering response is pleasingly light and agile.
Braking is excellent, and traction - and stability - control systems help maintain
directional stability on slippery roads.
Electronic Stability Program (ESP) aids the driver in maintaining vehicle
directional stability by controlling oversteer and understeer
This permanent and infinitely variable differential control also increases agility, avoids understeer on the way into corners and improves
directional stability under braking and load changes.
Hydraulic - assist rack - and - pinion steering has decent feel, takes reasonable effort, and required little attention
for directional stability on long, straight roads.
A further distinctive characteristic of the Reventón Roadster is its calm
directional stability even at extremely high speeds — a feature that also turns fast highway stretches into sheer joy.
The anti-lock brake system was uniquely calibrated for the all - new 2007 Dodge Caliber SRT4's performance to maintain
directional stability without wheel lockup.
Legendary quattro ® all - wheel drive enables high - precision, dynamic handling through active torque distribution to the rear axle while providing enhanced
directional stability when cornering.
Here, the rear wheels respond to the car's speed and steering angle by turning in the same direction to
optimise directional stability through dynamically taken corners and sudden evasive manoeuvres.
This targeted control of the power flow causes the vehicle to turn even more spontaneously and directly into bends, as well as endowing the S4 with much longer -
lasting directional stability.
At rest, it lies flush with the rear of the vehicle; in operation, it has two positions — the approach angle of 4 degrees is optimized for high speed and
assists directional stability at the very top end of the spectrum.
Despite the fat 20 - inch ultra-high-performance tires, the adaptive dampers, and the marginally stiffer springs,
directional stability does not always follow the line drawn by a ruler.
A few short bursts above 80 mph — about as fast as we dare due to Korea's omnipresent speed cameras — finds
impressive directional stability accompanied by a bit more wind and road noise than we'd like, at least on this preproduction model.
(A brief stint in a two - door Sahara later in the day offered much of the same, but with the expected loss of
directional stability due to the shorter wheelbase.)
In contrast to older 911s — like the notoriously wayward 996 C4S, which combined
random directional stability with erratic cornering manners — the 2015 GT3 RS has confidence written all over its widebody silhouette.
What always remains in the back of my mind, though, are the
wayward directional stability, the sometimes - frightening load transfer, and the zero - tolerance steering.
Even more significant was the urgent kick - in - the - butt midrange punch, the sharper handling due to a variety of suspension tweaks, and the enhanced
directional stability thanks to the whale - tail rear spoiler.
The wheelbase is long enough for
decent directional stability on fast straights and short enough for carving through hairpins and waltzing through esses.