Jun.22 (GMM) Williams will try a developed version of its F-duct system at the Valencia street circuit this weekend.

The British team's interpretation of the McLaren-like concept first appeared in China, but technical boss Sam Michael said then that he expected it to take "a couple of months" to perfect.

Very little about Williams' F-duct - called the 'blown rear wing' by the Grove based team - has been heard since.

But on Monday, the team announced that the innovation will feature on the FW32 alongside some other new parts at the European grand prix.

Williams, however, referred in the media statement to its Valencia-spec F-duct as "the development blown rear wing", indicating that the component may not be fitted for qualifying or the grand prix.

"We'll have more new parts for this race but we'll have to wait and see what improvements they bring to the car," said driver Nico Hulkenberg, whose teammate Rubens Barrichello won at Valencia in 2009 at the wheel of a Brawn.

Hulkenberg added: "We are inching a bit closer to the top ten, as we showed in qualifying in Montreal, but we have to continue pushing and gain more tenths to get into the top ten consistently."

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