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Old 07-18-2014, 10:24 AM   #81 (permalink)
freebeard
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The difusser will want to start early, as close to the rear axle as possible and be 2-12 from horizontal. The back bumper may be problematic. Consider D in the diagram above. The bumper could be replaced by two vertical nerf bars in the skegs (inverted tailfins) on either side.

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