Mooney successfully belly's in

"G.R. Patterson III" wrote in message
...
If the engine won't stop with the mixture cut off, it won't stop with
the
mags grounded.

Not necessarily true.

What makes you say that? What motivating force are the magnetos providing
that keep the engine windmilling with just the mixture cut off, and which is
absent when you ground the mags?

Pete

Peter Duniho wrote:

"G.R. Patterson III" wrote in message
...
If the engine won't stop with the mixture cut off, it won't stop with
the
mags grounded.

Not necessarily true.

What makes you say that? What motivating force are the magnetos providing
that keep the engine windmilling with just the mixture cut off, and which is
absent when you ground the mags?

Windmilling? I took you to mean that the engine that continued to run with the
mixture at cutoff would also continue to run with the mags off.

Yes, if it's windmilling at idle cutoff it'll windmill with the mags off.

George Patterson
None of us is as dumb as all of us.

"G.R. Patterson III" wrote in message
...
Windmilling? I took you to mean that the engine that continued to run with
the
mixture at cutoff would also continue to run with the mags off.

Since we're talking about cutting the engine prior to a gear-up landing, I
didn't think it necessary to point out the obvious context. I had even
specifically referred to the context in my own post.

Peter Duniho wrote:

"G.R. Patterson III" wrote in message
...
If the engine won't stop with the mixture cut off, it won't stop with
the
mags grounded.

Not necessarily true.

What makes you say that? What motivating force are the magnetos providing
that keep the engine windmilling with just the mixture cut off, and which is
absent when you ground the mags?

No motivating force, however the mag switch in most planes works by grounding
(short circuiting) the magnetos, not opening a circuit. A grounded magneto has
a much greater load than a magneto happily humming around producing a spark.

"Jack" wrote in message
...
No motivating force, however the mag switch in most planes works by
grounding
(short circuiting) the magnetos, not opening a circuit. A grounded
magneto has
a much greater load than a magneto happily humming around producing a
spark.

Are you seriously trying to claim that the additional load will make the
difference between the windmilling engine stopping or not? (Even assuming
your claim of increased load due to grounding is valid...seems to me, the
load is caused by the generation of electricity, which happens either way,
to the same degree).

Pete