wrote in message
oups.com...
Thank you so much.
But digital meters just used DC.? Pitot tube is used mechanical meter.

Your English is poor, and you question did not communicate what you were
trying to ask, very well, at all.

What type of digital airspeed meter are you trying to use? How do you mean
that a fan would be used to help this to happen?

Much more thought is needed, in asking your question. Be specific, and tell
us more of what you were told.
--
Jim in NC