Red Bull Racing's Formula 1 technical director Adrian Newey will not travel to this weekend's Chinese Grand Prix and will instead focus on re-designing the diffuser of the RB5.
Today's ruling by the FIA's appeal court that the diffuser designs used by Brawn, Williams and Toyota are legal has prompted Red Bull to change its car. The team hopes the revised version will be ready for the Monaco Grand Prix at the end of May.
"We are working flat-out on a new solution already," said Red Bull F1's motor sport adviser Helmut Marko. "As the verdict became official, Adrian [Newey] immediately canceled his flight to Shanghai and will stay in the factory. If everything goes according to plan, we will have the 'new' car ready for Monaco."
Marko says Red Bull was angered by the decision to approve the three double-decker diffusers because it had already submitted a similar design for approval and had it rejected.
"What angers us is the fact that we had approached [Charlie] Whiting for a clarification on a diffuser solution like the one in question and we were told it was illegal, therefore we did not pursue it any further, though our design team had similar ideas," said Marko.
"I wonder what impact this will have on cornering speeds. I assume there will be problems soon when cars are going too fast, and the airflow the double diffuser creates for sure will make overtaking more difficult again. Thus it is against the spirit of the rules agreed in the working groups."