As well as standard tests, as technically a new design of locomotive, "Tornado" was required to undergo specific extra tests to examine ride quality and track force, to assess the effect the locomotive would have on the main line track. The details of these tests are laid down by the Network Rail Safety Review Panel. It was agreed in advance between the trust and the authorities that these could be done in part at the GCR. Accordingly, on 25 September 2008, the tests were performed by running "Tornado" through the Kinchley Curve at speeds of 10, 20, 30, 40, 50 and , with a trailing saloon car fitted with monitoring equipment, including a Global Positioning System (GPS) unit to measure the precise speed and distance travelled every metre. Measurements were taken on board by 21 sensors attached to the locomotive, measuring pitch and roll, and acceleration and deceleration. Measurements were also taken through the use of track-side sensors measuring side forces exerted on the track, augmented with freeze-frame footage of the position of the wheels as they passed. The results were compared with control readings taken at the same site using "Oliver Cromwell", two weeks later.> The preliminary results were described as producing "no untoward signals".