[simpits-tech] Using real instruments

[Ken Trager]

Craig

You will need a pressure and vacuum hook up.

As you rise the bellows will expand (Less air pressure outside then inside)
and as you sink the bellows wil move together (more air pressure outside
then inside).

Good luck

Ken Trager


> Before you modify your altimeter, you might want to consider using vacuum.
> VVI(VSI) would also use the same vacuum signal.  The VVI measures the rate
> of change of the barometric pressure.  I'm pretty sure it's a pneumatic
> gauge, most are.