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Posted by Hein on June 17, 2010 at 11:50am

What would realistic ranges be for air pressure measured by a differential sensor during flight ?

At what realistic speed , including a head wind of what speed ?

Looking for alternative differential pressure sensor, what would the ideal range be in kPa / psi ?

Regards

Hein

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Hein June 18, 2010 at 10:14am

Found a good reference discussion here :
http://www.kansasflyer.org/index.asp?nav=Avi&sec=Asi&tab=Th...
Hein June 18, 2010 at 10:05am

@tom

Should really have looked that up myself :)

So a max 2 kPa sensor should be good up to the 200 km/hr range at sea level. What is a simple explanation for the increase in pressure not being linear to the increase in speed (v^2 ) ?
Tom Yochum June 17, 2010 at 1:22pm

press = 0.5 * rho * v^2
press = pressure in Pa
rho = density, approximately 1.22 kg/m^3 at sea level
v = velocity in m/s

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