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Old 11-30-07, 04:16 PM   #4 (Link)
 
Avus_M3
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Re: Doublecheck my calcs...RLP18 Sonosub


Quote:
SteveCallas wrote: View Post
I'd go with at least 5" legs - I went with 8"

The design looks solid, though in real life I don't think it will take a 29" long port to get a 13hz tune. I know the simulations may say that, but my own port is something like 24" long in a 70" tall, 28" diameter tube, and my tuning came out to be ~13hz. As has been said elsewhere though, it's much easier to trim down a port then add to it, so I'd start with 29".
I'll remember not to seal my top end cap before I do some testing. Thanks Steve!


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