CR21 hardware carrying the pedal assembly bolts.
Suspension hardware is standardised across every point on the car: NAS-620x National Aerospace Standard bolts, MS21042-x Military Standard jet nuts, and FK alloy steel rod ends. Bolt size at every joint is determined against shear yield and axial yield with a minimum factor of safety of 1.8, and minimum torque is calculated from the required clamping force rather than taken from a table.
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.
Purchased to specification.
Aluminium.
None recorded. This part has no entry in Knowledge_Transfer/Issue Logging/Fault Vault.xlsx, in either Issue Log.xlsx, in CR22/Issue Tracking/Shakedown 7-15-23.xlsx, or in any design review issue list found in CrimsonStorage or Box.
Nothing in CrimsonStorage covers these yet.