Active Aero & Overtake Mode - Decoding F1's Fresh Regulatory Jargon

Conceptual image of a future Formula 1 car

The vehicles for the 2026 season are expected to be more compact, agile and eco-conscious than this year.

F1 has revealed the new terminology that will be used to reference the intricate details of its revolutionary 2026 regulations.

The racing series is embarking on what is arguably the most significant rules overhaul in its illustrious history next season, featuring revised car and engine specifications and the mandatory use of eco-friendly fuels.

The new power units, which maintain the 1.6-litre V6 turbo hybrid, boast a significantly increased electrical capacity, requiring major innovations in the vehicles' aerodynamic design.

Over a race distance, pilots will carefully oversee battery power – potentially on hot laps – to secure the optimal performance.

Broad surveys were undertaken with a wide range of fans, including new, casual and core fans, to identify which terminology would aid comprehension of the main elements of the upcoming rules.

The key objective was to present a range of advanced technical aspects of the competition as accessible as possible for the broadest viewership.

Consequently, initial designations for specific components – such as "modes labelled X and Z" for the active aerodynamics – have been abandoned in preference for intuitive labels that directly explain the primary purpose of the system.

Exploring the New Tech

According to rule-makers that competitors will have increased agency to choose strategies regarding power usage, harvesting, and efficiency.

The 2026 rules introduce a series of modes that will be visually displayed on TV overlays to improve the audience's understanding of the race battle.

  • Attack Mode: This takes over from the present overtaking aid. It provides a burst of extra electrical energy available when a competitor is less than a second the leading car to execute an pass.
  • Power Mode: This is a driver-operated energy deployment from the ERS that can be utilized during overtaking or defending. It delivers the pilot full engine and battery energy at the click of a switch.

Both of these crucial modes will have to be deployed strategically, as the overall battery capacity is restricted.

  • Active Aerodynamics: Both the car's wings change configuration – opening on the long straight sections for low aerodynamic resistance and increased velocity, and sealing in the corners for optimal cornering performance.
  • Energy Harvesting: The system can replenish their battery with energy harvested under braking, or during partial power application at the conclusion of a straight or in sections where only partial power is required.

Car Design Evolution

The 2026 cars will be smaller and lighter than this year, with a car length shortened by 200mm to 3,400mm, width narrowed by 100mm – down to 1,900mm – and the minimum weight lowered by 30kg.

Total aerodynamic grip is anticipated to be reduced by approximately fifteen to thirty percent, although teams will undoubtedly recover some as they develop their cars.

Aerodynamic drag has been slashed by 40%. The vehicles will feature moveable wing elements – front and rear wings will move on the straight sections to cut resistance and boost top speed and click back into place for peak handling.

Tyres will keep 18-inch wheel rims, but the actual tyres will be slimmer, by 25 millimetres on the front axle and 30mm at the rear.

2026 Engine Regulations

The new power units will have an near-equal balance in horsepower generated by the ICE and the ERS, a rise from about 20% electrical this year.

The ERS setup is simplified through the elimination of the complex turbo energy recovery device, the complicated and costly component that recovered energy from the exhaust turbo.

Cars will be required to run on 100% sustainable fuel, created from organic sources or lab-created processes.

Samantha Henderson
Samantha Henderson

Elara is a tech journalist and digital strategist with over a decade of experience covering emerging technologies and their impact on society.