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Old 06-23-2022, 02:24 PM   #22 (permalink)
aerohead
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geodesics

I spent some hours considering geodesic construction that I thought I'd share.
Only machines can define them
Specific surface feature identification and address location would be extremely complicated among humans
Only robots would be able to easily navigate the 'language' of the 'fractal' architecture
Only AUTOCAD could draw it
Only CAD-CAM could create tooling for it
It couldn't be 'stamped'
Glazings could not be installed, windshield, door glass, fixed quarter-windows, or backlight
I'm unsure how a body shop could repair it
I'm unsure how any cut-opening ( bonnet, door, boot ) could open and close without binding.
Even robotic painting would be problematic
Machine sanding would be impossible.
It couldn't be built from a mold.
Composite fabrics would not drape over it
Tooling would have to be in split sections, clamped together for layup, leaving 'flash' at all separation lines ( difficult to remove for priming and topcoats )
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Aerodynamically, we might be able to get way with murder in the forebody, but once past the roof apex, the angled prismatic nature of the 'panel', at non-cyclic intervals, could introduce such a transverse flow vector contamination to the boundary layer, as to introduce such an adverse pressure gradient, that it would be impossible to maintain attached flow on top or sides.
This is already an established problem with 'smooth' compound-curvature panel airship bodies in a crosswind according to NACA ( NASA ).
Just some thoughts.
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