2 questions

[Eton]

Which formula for calculating ports is the correct one or is more accepted? Each one yields a different result and I'm trying to decide which one to use in a program.

Is there a specific forum for posting for sale items?

Thanks

 

[mikee12345]

Which formula? i just use winisd PRO. Its proven.



Lv = (23562.5*Dv^2*Np/(Fb^2*Vb))-(k*Dv)

diysubs link

?
Theres one.
Cheers

 

[Eton]

Thanks.
That one is ok as long as you don't use the NP.