However, for low speeds, tractive effort is more important than power.

Pr1 was considered have a strong tractive effort and it had good acceleration.

Despite slow speed and short range, they were also powerful in terms of tractive effort.

The sum result of these changes was a significant improvement in power and available tractive effort.

This gave her the same tractive effort as Nos 10 and 11.

This, however, resulted in lower tractive effort because of its low efficiency.

They did, however, have less tractive effort than the two-cylinder Class 16.

As a result it developed a higher tractive effort.

The b-series has higher top speed, but lower tractive effort.

Tractive effort was calculated at 15,330lbs with a working boiler pressure of 200psi.