they used different transmissions. Because these
tractors have similar maximum engine power and TE, it was
deduced that the power-boost systems intervened in a similar
way and with comparable contributions. Tractor B had a p
value higher than A and C because it was calculated using data
from the first stretch of the flyover where it is at its steepest.
The final speed forecasts for these acceleration tests had
maximum differences of 13% for the speeds reached (Table 6).
When using the same model for tests with different lengths,
the model has to be recalibrated.