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Pressure at speed (+head wind) - kPa / psi

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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Replies

  • 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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