Doubles/Triples | Handling

Which trailer is most vulnerable to crack-the-whip rollover?

The last trailer.

What is crack-the-whip?

Steering movement becomes amplified toward the rear.

How should you steer?

Smoothly and gradually.

Which trailer should generally be heaviest?

The first trailer behind the tractor.

Why look farther ahead?

To avoid abrupt braking and lane changes.

Why allow larger traffic gaps?

The longer combination takes more time and space to cross or merge.

Is a curve speed safe for a single trailer necessarily safe for doubles?

No.

What parking arrangement is preferable?

One allowing you to pull forward out.

Why are slippery conditions especially challenging?

More trailing axles and length increase traction and control difficulties.

Does the T endorsement override vehicle or route restrictions?

No.