McLaren’s rear wing and the prospect of provisional results

The rear wing of the the McLaren – or rather the mechanism that can affect the effectiveness of the rear wing at high speed on the McLaren has been questioned by the other teams ahead of Sundays race. The stewards have passed it as legal and the FIA have backed them up on this, but with the propect that one of the other teams could appeal or lodge a protest then the race result may end up being provisional.
The issue centres around the device on the McLaren which allows the driver to change the airflow over the rear wing. Normally the device will be shut and won’t effect the airflow at all but at high speed the driver can open the flap which will then let the air pass through the chassis and exit over the rear wing which has the effect of stalling it, reducing drag and therefore increasing [...]