<... against calibrating anything in inches....>
Of course I meant psi .... :o(
Jim S.

Jim Sower wrote:

> Rino,
> I'm not Tracy or Ed, but I'd advise against calibrating anything in inches.
> I would display MAP since that's what the engine sees.  The engine doesn't
> know or care what caused the pressure (low altitude or high boost).  Tracy
> can speak to this better than me, but I'm certain his fuel control measures
> MAP and most likely in inches Hg.  That has been the aviation standard since
> boost got invented in the '30's.
> Eliminates a lot of confusion .... Jim S.
>
> Rino wrote:
>
> > I have a question for Tracy and/or Ed. on pressure gauge calibration.
> > I am confused when it comes to calibrating the instruments
> > I have the Motorola MPX 4250 pressure sensors for my intake manifold and
> > turbo pressures.
> > I want to calibrate the gauges in inches.
> >
> > The Question:  Do I start at sea level at (29.92") or at Zero
> > I think that the confusion comes from the automotive vacuum gauges that
> > start at zero at sea level pressure and get 30" at full vacuum.
> >
> > Thanks
> >
> > Rino
> > Getting closer to first flight
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>
> --
> Jim Sower
> Crossville, TN; Chapter 5
> Long-EZ N83RT, Velocity N4095T
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

--
Jim Sower
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T