The first (lower forward) main element of the dual main element front wing.
Carries the largest single share of front wing downforce. Eppler series profile selected for low-speed high-lift performance.
No part-specific design process is documented. The Front wing subsystem design process applies: 1. 2D CFD sweeps in ANSYS to place elements and set angle of attack cheaply. CR26E ran 153 two-element and 148 three-element sweeps for the rear wing on the same method. 2. Move promising 2D results into a 3D half-car model at 35 mph, chosen as a representative competition corner speed. 3. Iterate in the half-car model, tracking CLA, CDA, CoP and tire drag in an iteration tracker. 4. Run the best candidates in the performance map (PMAP) full-car model for yaw, roll and cornering. 5. Validate on track with constant-speed testing, tufting and Flo-Vis oil.
Infused skin over a wet laid-up spar, in a milled tooling board mold. Endcaps bonded in a 3D printed jig.
CFRP. CR22 front wing schedule for bottom skins and top skins without flanges: 0-90 Textreme (76 gsm), +/-45 stitched construction ply (150 gsm) x2, 0-90 Textreme (76 gsm). Spars: 0-90 stitched (240 gsm), +/-45 stitched (150 gsm), 0-90 stitched (240 gsm).
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.