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freebeard · 07-04-2016, 11:02 AM

Aerodynamically, it is a semi-permeable membrane. Size/spacing of the holes could vary and there will be some optimum.

It could serve to vent engine compartment air.

07-04-2016, 11:02 AM	#5 (permalink)
freebeard Master EcoModder Join Date: Aug 2012 Location: northwest of normal Posts: 28,874 Thanks: 8,191 Thanked 8,967 Times in 7,407 Posts	Aerodynamically, it is a semi-permeable membrane. Size/spacing of the holes could vary and there will be some optimum. It could serve to vent engine compartment air.