Pitot PSID

[Scott Spencer]

Does anyone have information on the pressure differential (PSID) produced in a pitot tube in the 0 ? 200 knot speed range. A graph and or simple equation is what I?m looking for.

Thanks.

[jclark]

Originally Posted by Scott Spencer

Does anyone have information on the pressure differential (PSID) produced in a pitot tube in the 0 ? 200 knot speed range. A graph and or simple equation is what I?m looking for.

Thanks.

In a hurry at the moment so no specific answer, but take a look through these articles on Kevin Horton's site:

http://www.kilohotel.com/rv8/phplinks/index.php?&PID=1

I think you will find what you need.

James

[Alex]

dynamic pressure (pitot-static) at 200 kts at sea level on a standard day comes out to 0.9409 psi. Here's how I got that:

q= 1/2 * rho * v^2
q = 1/2 * (0.002378 sl/ft^3) * (200 kts*1.68fps/kts)^2 / 144 in^2/ft^2

[Scott Spencer]

J. Clark, Thanks for the info. The links on kevins site are very useful.

Alex, Thanks for the formula.