Red Bull Racing will not benefit from on an F-duct on its car in Spain this coming weekend, Mark Webber has confirmed.

Following the Chinese Grand Prix last month, Red Bull team boss, Christian Horner said the Milton Keynes-based outfit could fit the device to the RB6 'providing' they got back to Europe okay and were not seriously hampered by the air travel issues caused by the Icelandic volcanic eruption.

However, while the teams did make it back in time, Webber has now revealed that they won't have a copy of the McLaren system on the RB6.

"We don't know when we're going to have it, but we are looking at something, as I'm sure all teams are," Webber told BBC Sport.

"I think it's actually called a J-switch; that's what Lewis [Hamilton] calls it. So yes, as soon as possible would be nice, but it's not going to be Barcelona, that's for sure."

As for the season to date, Webber conceded things have not gone exactly as he had hoped: "I'm definitely not rapt with the results. We've left some change on the table, there's no question about it. Even Malaysia, with the second place, I could still be pretty hard on myself and say I could have gone one better there.

"But Melbourne and China were difficult events for different reasons, the pit strategies in Melbourne, and in China I wasn't fast enough, simple as that. We're certainly looking to address that with immediate effect in Barcelona.

"I don't think there's a huge amount I would do different. Bahrain was a qualifying mistake that put me out of position. The good thing is, I feel I have the pace, we just need to make sure we have clean weekends and role everything together," he concluded.