One of the links(Chris Good's) at my page;
http://www.elkhart.net/~miked/Ulinks.htm
has a drawing of one like this.
>
> I'm planning to have an airspeed as well as altitude sensor in a
> PIC-based R/C plane project. My current thoughts are to have a combined
> static and stagnation pressure pitot tube and mount that in the nose
> cone. The pitot would be made of two tubes, where the inner tube is open
> to provide stagnation pressure while the inner would be closed at the
> end but have drilled holes in the sides for static pressure. The static
> pressure would be fed both to an absolute pressure sensor for altitude
> and to one input of a differential sensor for airspeed.


Michiana R/C Choppers
http://www.mrcc.info
miked@mrcc.info

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