Mxsmanic wrote in
:

Marty Shapiro writes:

Have you ever driven a non-turbocharged car from a low lying city up
into the mountains, like above 5,000' MSL?

I don't know. I think so, since some of the cities north of me were
around 7000'.

Also, the design of the aircraft engine is such that once it is
started, the engine driven magnetos provide the spark to keep it
running. You can have total electrical failure and the engine will
keep on running. How do you stop the engine after you land?

By cutting off fuel, but that's a simple switch or valve. It seems
that there are a lot of other complicated adjustments to worry about.

By now I would have expected that powerplant manufacturers would have
built automated systems to handle much of this; indeed, it was
possible even before the age of computers.


mixture works like this:

its a fule to air ratio. x:y... so as you climb and air density
decreases the amount of fule require to keep the ratio constant,
changes. So, the amout of fuel you send to the engine needs to be less.
Thats where the mixture controll comes in. If you don't have the Pilots
Handbook of Aeronautical Knowledge, there is a good explanation of
it....if you don't have it; you can download it from the faa website.
If you need the link Ill post it, but I have to run….