MY27 aero architecture
MIT Motorsports, architecture design review, September 19, 2026
- My role
- Directed the aero team's design meetings
- Presented by
- 6 members of the aero subteam
- Review
- Architecture design review (ArchDR)
- Rules
- FSAE 2027, T.7 aero and bodywork
- Next gates
- Concept reviews: sidepods, active aero
- Downforce, CLA
- 4.0± 0.2 m²
- Drag, CDA
- 1.3± 0.1 m²
- Aero balance
- 42 / 58front / rear
- Yaw
- ≤ 10%CLA loss at 5°
- Aero mass
- 14.22 kg± 0.25
- Budget
- $4,100
MY27 functional requirements from the ArchDR. These are design targets, not test results.
- Scoped a full aero redesign toward these targets by directing the aero team's design meetings and checking every proposed change against the FSAE 2027 aero rules.
- Triaged 6 parts of the package by build effort with the team, with go/no-go gates where they're needed, so the package stays complete even if a high-risk item like active aero (capped at 0.3 kg of added mass) is dropped.
The package manages flow front to back across 7 elements. The front wing makes about 39% of the downforce and turns air around the front tires. Endplate sides and flaps push the tire wake outward, and the nose cone and whiskers guide clean air along the body. The sidepods recover pressure lost in the front-wheel wake and feed the radiators. Floor edge strakes keep tire wake out from under the car so a larger diffuser can make more suction, and the rear wing closes it out on a new gooseneck mount that clears the diffuser exit.
The review also responds to MY26's manufacturing lessons, from wet layups with the wrong amount of epoxy to mounts not designed for load and a surface finish rough enough to hurt CFD correlation.
MY26 baseline CFD
Scenes from the MY26 car's full-car STAR-CCM+ simulation, the baseline the MY27 targets build on. Pick a scene, and select the image to enlarge it.
Streamlines colored by velocity, with the car's surface colored by pressure coefficient. The disturbed lines trailing the car are its wake.
Streamlines
Near-ground streamlines
Surface pressure
Total pressure