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I finally had the chance to do a coast down test as per the instructables page.
This was with the coroplast section removed so just the stainless roof and side extensions, moon discs, front airdam, patial grille block, side mirrors folded, one windshield wiper removed, rear wheel skirts. 5˚C, raining. Tires at 40psi
Cd: .30
CdA: 8.52
Crr: .0124
Original numbers:
Cd: .33
CdA: 9.42
Will try it with the full Kamm sometime this spring.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
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