Slot ports -- same calculation as round?

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SpaceX designs, manufactures and launches advanced rockets and spacecraft The company was founded in 2002 to revolutionize space The max mass per port is

Online calculator subwoofer box volume, port length Less Derek · diy sub boxes · Best Subwoofer · Enclosure Design · Draw A Box · 12 Inch L = Length of Vent or Port D = Diameter of Vent N = Number of Ports V = Volume of Box F = Tuning Frequency K = End Correction Factor

komandan slot port to a slot or square port with the same surface area For example, a 6 inch round port has a surface area of 28 square inches This will how do most of you guys calculate port area of an octo port as in the whole per cubic ft deal Do you treat them like slots or aero's?