Williams FW48 technical update: Pat Fry introduces innovative T-tray vortex generators. Williams is exploring micro-aerodynamic solutions on the FW48.

Williams fine-tunes micro-aerodynamics: flow deviators in the T-tray

The Grove-based Williams team is paying close attention to both weight reduction and aerodynamic refinement on the FW48, which has been notably overweight. Pat Fry’s staff has been focusing on aerodynamics, revealing an intriguing detail in the delicate T-tray area.

During the first days of testing in Bahrain, it’s easy to be impressed by technical solutions seen on the more agile cars. Compared to the cars we saw debut in Barcelona, there have already been major updates. For instance, the Audi R26 has evolved its sidepods, transforming the radiator inlets from horizontal to vertical and eliminating the front section of the sidepod entirely.

However, the most interesting solutions are not always the most visually striking, and Williams has caught the eye with its FW48. The Grove team’s car, today running mid-field with Alexander Albon, remains significantly overweight (we published times reflecting the “weight reduction” program), yet it intrigues with a micro-aerodynamic feature visible in the T-tray area.

In the carbon bulb enclosing the splitter damper, the FW48 reveals four tiny vortex generators—almost invisible but strategically positioned in a highly sensitive section of the car. These minimal elements demonstrate that even visually subtle features can contribute meaningfully to overall performance.

The photographs also highlight another detail: the attachment of the front suspension arm to the chassis is shaped with a composite cover that directs airflow upwards, optimizing local downforce. This small but precise solution illustrates Williams’ meticulous approach to extracting aerodynamic efficiency where every fraction of airflow counts.

The focus on micro-aerodynamics by the Williams technical team suggests that while weight reduction is the immediate priority, the search for “free” aerodynamic performance remains relentless. By refining the airflow around the T-tray and suspension mounts, Pat Fry and Matt Harman are ensuring that the FW48 possesses a sophisticated aerodynamic base to build upon once the car reaches its optimal weight.