Why not run a clear plastic tube with colored water so that the column of colored water is visible in the cockpit and the two ends are placed one on the lower surface and the other on the upper surface.
The water column could be marked while the aircraft was at 0 airspeed and then noted as to movement to show differential air pressure. This is how the altimeter works as well as airspeed indicators work, the only difference is they measure pressure differential against static pressure or against a known pressure whereas this setup would show pressure difference between bottom and top of the airfoil. I can think of another use to show ( using multiple of these small tubes of colored water) to show the center of pressure changes at differing speeds and aoa, just a thought. Thanks Just my idea/thoughts Parley Byington N54PB KR-2 Henderson No A Vietnam era veteran Sent from my iPhone > On Jul 23, 2022, at 11:14 AM, Flesner via KRnet <krnet@list.krnet.org> wrote: > > On 7/22/2022 8:15 PM, John Price via KRnet wrote: >> Just a mental exercise here. Wouldn’t you need to take a static reading on >> both the upper and lower surface? Wish I could do that. >> >> John Price > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > Would a pitot read with no ram air measure pressure (basically a static read) > at the wing and use static inside the cockpit work? We're not looking for an > exact number here just the difference between the two. Someone with a better > understanding than me and two altimeters will have to answer that for us. > That could go viral on Youtube. 😁 > > Larry Flesner > > P.S. How about a single altimeter with two tubes and a selector valve between > the two. Read one then the other. > > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
