Mike,

Yes, it is passive. Dr. Sinha started his research with active
surfaces. He used them both as sensors to frequency content in the
flow and drivers to control the flow. He eventually learned that you
can dispense with the complications of electrical control simply by
using the energy present in the flow-surface interaction. Think of
filtering attached turbulence flows into frequencies that are hard to
maintain down stream.

Jim

On Dec 29, 8:23 pm, "Mike" wrote:
Jim,
Is it a passive system, no current?

Mike



OxAero wrote:
After three years of working to configure Sumon Sinha's deturbulator
tapes for my Standard Cirrus, we finally brought it to Caddo Mills for
one of those Johnson flight test evaluations. He and Jeff Baird flew
it six times with those shiny silver strips on the wings, then three
times without. What did they learn? Come to the Convention in Memphis
to find out. Dick, as usual, will tell it straight. Will you laugh?
Will you be dumbfounded? Will you believe?

Jim Hendrix- Hide quoted text -- Show quoted text -