Doug Hoffman wrote:

I thought Johnson's criteria was +/- .004".


Eric,

After reviewing the articles I could find with more care, and with Udo's
input, I think .008" peak-to-peak (or +/- .004") is too large a wave for
laminar flow.

I'm sure you are right - I meant peak to peak.

--
Change "netto" to "net" to email me directly

Eric Greenwell
Washington State
USA