pressure of the air, ^=head of water. Now, it has been proved experimentally that the pressurereading of the annular space equals p, and the pressure reading of the Pitot tube equals i/p-^—pvA. Hence, when the pressures have been balanced by the headof water, we have and •■■ -jpv^^J^- Pitot and… … -^pv^+p^-Pi=h. jio. 2. It has been experimentally established that the differ-ence of the pressure readings of the two tubes F and B is proportional to -^pv^, and hence, /.=K(lp.^), where K isAlso the constant for the instrument. \pv^p-p^=-^{^-pv^^ and ••• (i-:?i)=(K-i)f \p^). We see, then, that…
Airplanes
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