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PRO clas babey! (REAR WING (DESIGN CONCEPTS (SUPPORT STRUCTURES (SIDE POD…
PRO clas babey!
REAR WING
DESIGN CONCEPTS
45 degree sweep
SUPPORT STRUCTURES
SINGLE AEROFOIL
more aero
more material=strength
SINGLE ROD
less strength because of less material
less aero
SIDE POD EXTRUSIONS
more frontal surface area
undisturbed canister shroud airflow
more weight
more complex / more risk of error
INTEGRATED INTO CANISTER
disrupts canister shroud aero
same amount of frontal due to milling restraints
lack of innovation
minimum width
REGULATION CHANGES
3D PRINTED
less thick
support structure to think abt
MATERIAL CHOICES
ABS/ULTRATAT
shrinkage exists
PLA PRO
reduced shrinkage
HIPS
low shrinkage
TESTING WANTED
PETG
low shrinkage
SWEEP SHAPE
chevron
weight low
curve
drag co=0.10
weight low
compound
weight low
drag co=0.09
CROSS SECTION SHAPE
TEARDROP
ROUND FRONT TAPER OUT
SLIGHT TAPER FRONT TAPER OUT
Wheel systems
AXEL
SINGLE THROUGH AXEL
simple=less error to be made
increased frontal surface area
lack of innovation
increased spinning mass
NO THROUGH AXEL
more design choices
complex/manufacturing error has to be accounted for
un-interrupted underside airflow
minimal spinning mass
WHEEL
26 mm size minimum
rotationally symmetric inner supports
3 struts
15mm flat face minimum
MANUFACTURING
wheel 3d printed professionally
SFR144C-YZZ NB2 bearing
pressfit to hold everything
MINIMIZE SPINNING MASS
no through axel
car > wheel attachment support ->
FOUR MILLING CODES
REAR PODS
fit to wheel drag shape
adds weight