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Date: Wed, 11 Feb 2009 18:30:02 -0600
From: Charlie England <ceengland@bellsouth.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Now that the thread is reactivated, how about *indicated* airspeed? I'm 
thinking basic flight instrument backup: AS, ALT (with baro) & maybe 
vertical speed.

Charlie

Tracy Crook wrote:
> That came up in an earlier topic.  I had decided to have a second TAS 
> readout option so you could put a static probe (sponge covered tube, 
> etc) in front / behind various heat exchangers so you could see the 
> relative pressure recovery.  I'll just use the same sensor as the main 
> TAS pressure sensor. 
>
> You can convert the mph reading back into pressure if that was needed.
>
> Tracy
>
> On Wed, Feb 11, 2009 at 5:45 PM, Monty Roberts <montyr2157@alltel.net 
> <mailto:montyr2157@alltel.net>> wrote:
>
>     Tracy,
>      
>     I was mostly thinking about air pressures. Like plenum, after
>     radiator etc. I'm not sure what the best type of transducer would
>     be, but my guess is the MAP sensors are the least expensive way to
>     go. Most of the lab grade transducers with a pedigree are just
>     ridiculously overpriced. If they work with 0-5 that would be perfect.
>      
>     Unless you know of something better in which case, I'm all ears. ;-) 
>      
>     Monty
>      
>      
>     Hi Monty,
>        What kind of pressure are you thinking of?  Air, liquid, what
>     pressure range, etc?  I could have some gen purpose  0 - 5 volt
>     inputs that can be calibrated to whatever units you wanted.  You
>     would have to use a sensor that put out voltage in this range though.
>
>     Tracy
>
>