Fifth and uppermost element of the CR22 through CR26I rear wing stack.
Removing elements 4 and 5 cut estimated weight with mounting from 11.58 lb to 9.87 lb and raised rear wing efficiency from 2.26 to 2.299 in isolated half-car runs.
No part-specific design process is documented. The Rear Wing subsystem design process applies: 1. 2D ANSYS sweeps to optimise element positions and angles of attack for each candidate element count. 2. Verify positions in 3D and increase stack angle of attack where 2D over-predicted. 3. Run integrated half-car runs with the current undertray iteration so element interaction is captured rather than assumed. 4. Full-car yaw runs to check performance when the front stack is reduced. 5. On-track validation with tufting on both surfaces and Flo-Vis oil during constant speed and skid pad.
Infused in a tooling board mold milled on the 5-axis gantry, or laid up on a 3D printed mold for smaller parts. Endcaps, spars and skins are made independently and bonded in 3D printed jigs with glass alignment beads controlling bond gap.
CFRP.
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.