Article C3.16.13

EC Rocket Aperture

Technical Regulations

Article C3.16.13

FIA Source

EC Rocket Aperture

Chapter: C3

In Simple Terms

F1 teams can have small exhaust outlets (called 'rocket apertures') on the engine cover to help with aerodynamics. These holes must be no bigger than 100,000mm² total and positioned toward the rear of the car, with a maximum of two holes allowed on each side.

  • Maximum total area of 100,000mm² for all exhaust apertures combined
  • Apertures must be located rearward of position XR = −55 on the engine cover
  • Teams can have up to two separate apertures per side (up to four total)
  • These are exhaust-only outlets with specific dimensional constraints [10, 300, 350]
Official FIA Text

EC Rocket aperture within [10, 300, 350] RV on Engine Cover, maximum 100000mm² area, efflux only, must lie rearward of XR = −55, may consist of up to two apertures per side.

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2026 Season Regulations

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