Lucas di Grassi is confident that Virgin Racing has solved the front wing-mounting issue which has forced the team to miss significant running at Jerez after the problem did not repeat itself today.
The Virgin VR-01 lost its front wing with Timo Glock at the wheel on Thursday, and the team was forced to modify the design of its mounting and manufacturer new parts.
All of the required parts had arrived by the middle of the day, and di Grassi was able to take to the track in late afternoon.
"The weather is not helping us, with rain forecast for tomorrow," he said. "But we hope that everything goes according to plan and we are able to do more mileage tomorrow."