1. ## Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

I am about to design a box 2 15'' RE HCs and would like to get to 8 cubes, 30hz, after displacements using two full length 6'' PSP AeroPorts but I am having trouble calculating displacement.

Anyone ever run a calc for this or have any guidance?

Help will be very much appreciated.

Thanks,

Kevin

3. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Cianzo on the ball as always

http://www.psp-inc.com/tools.html

4. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

I believe he's asking for the volume of displace of the actual port.

Tuan

5. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

r2 x pi x length / 1728 = cf

6. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Originally Posted by SicAudio
r2 x pi x length / 1728 = cf
this

7. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Originally Posted by SicAudio
r2 x pi x length / 1728 = cf
That isn't exact displacement. You have to take the integral of the curve and rotate it around the z axis to get the precise displacement.

I have the exact number but I misplace it somewhere. It's been 3 years since I've designed something with it.

Tuan

8. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

the extreme minor .000004579 cf dif will not make a bit of difference tho lolz

9. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Yea, the displacement of the aero as if it were a normal, round port would be close enough because it'd be such a small amount off on airspace if you really wanted to factor in the flared portion

10. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Ok. Thanks everyone. Makes sense now.

11. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

.35 is what partsexpress told me

13. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Originally Posted by Buck
smart man

14. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

Originally Posted by michaellane
smart man
You gotta know how to do this if you design boxes.

15. ## Re: Anyone ever calculate the exact displacement of a full length 6'' PSP AeroPort?

pi*r*r*length*number of aeros/1728

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