The surface the driver's foot contacts, spreading load into the arm.
A CFRP face over a balsa wood core, which gives a light, stiff panel with a large foot contact area.
No part-specific design process is documented. The Pedals subsystem design process applies: 1. Take brake and throttle pedal position ranges from the ergonomics study (brake optimum 38.22 in, throttle optimum 38.48 in; CR26I sits at 38.7 in and 38.5 in). 2. Select the pedal ratio from the master cylinder sizing and the required pedal force, then set the geometry that achieves it. 3. Analyse the arm. CR26I brake arm: 225 lbf applied, fixed at the hinge, minimum FoS 1.23, with a mesh convergence study. 4. Waterjet the arms, lay up the faces, assemble on the rail. 5. Validate pedal force and travel against the brake calculation on the car.
CFRP skins on a balsa wood core.
Fault Vault, 2026-05-15, CR26I, Design, Compromised Failure. The brake pedal face began separating from the pedal arms because the Hysol 9460 bond was failing. More structural adhesive was added and the joint was monitored through competition.
More structural adhesive added at the face-to-arm bond after the Hysol 9460 joint began separating, and the joint was monitored through competition.
Nothing in CrimsonStorage covers these yet.