I give up, after many, many years!

On May 19, 8:22 pm, Mxsmanic wrote:
Ken S. Tucker writes:
Well duh, it's a magnetic compass in a fluid.

The fluid can leak out.

Good point: ((note to Ken: wear Depends)).

Is for me.

You're brave.

Not really, it's the instrument of last resort.
Ken

On May 20, 3:22*pm, Mxsmanic wrote:
Ken S. Tucker writes:
Well duh, it's a magnetic compass in a fluid.

The fluid can leak out.


Then you would not have taken off, its a required instrument...

Cheers

Mxsmanic wrote in
:

Ken S. Tucker writes:

Well duh, it's a magnetic compass in a fluid.

The fluid can leak out.

What? Your TV screen is that realistic?



Bertie

"Ken S. Tucker" wrote in news:a15da157-a236-
:

Well duh, it's a magnetic compass in a fluid.

While flying in IMC, I had a compass seal fail 10 miles from my
destination ... gawd, smelly compass fluid all over the cockpit.

--

On May 20, 12:33 am, John Godwin wrote:
"Ken S. Tucker" wrote in news:a15da157-a236-
:

Well duh, it's a magnetic compass in a fluid.

While flying in IMC, I had a compass seal fail 10 miles from my
destination ... gawd, smelly compass fluid all over the cockpit.

When thought through, the Mag-Comp is quite the
precision instrument. That fluid needs be able to
not freeze down to what, maybe -40F. (Ron from
Alaska might know). It also sits in an Arizona sun
and can't expand to burst, though yours (John)
may have.
It also has a viscosity that keeps the thing from
gyrating all over the place, the one we used had
a slow lag while banking, so if you wanted to come
to 180 level the wings for 178 and the thing creeps
to 180.
Ken

"Ken S. Tucker" wrote in news:a15da157-a236-
:

On May 19, 6:54 pm, Mxsmanic wrote:
Ken S. Tucker writes:
I disagee. If all Instruments go dead, go to
magnetic compass for heading, even in a fog, that's
SOP.

If you have a compass, all instruments are not dead.

Well duh, it's a magnetic compass in a fluid.

Not after Ken drinks the fluid, of course.

However, that won't be enough in IMC.

Is for me.


Oh please do go out and fly instruments with just a whiskey compass,
fjukktard, Please make sure it's not a good airplane you take with you
to the grave.

Maintaining altitude is "seat of pants" thing, so
what? Set cruise RPM and feel airspeed.

That isn't possible.

Sure it is.
As long as you're not accelerating, which is something
that can be sensed by audio RPM , the magnetic
compass can operate as an artificial horizon too,
because it's like a plumb-bob.
It's of course, independant of operating systems.


Heeeee Haaaw!



Bertie

"Ken S. Tucker" wrote:

the magnetic compass can operate as an artificial
horizon too, because it's like a plumb-bob.


Good gawd.

There truly must be no saturation limit for cluelessness.


--
Dan

"Did you just have a stroke and not tell me?"
- Jiminy Glick

On Tue, 20 May 2008 06:32:27 -0500, "Dan Luke"
wrote:


There truly must be no saturation limit for cluelessness.


Thinking of what my a compass looks like in even minor bumps, much
less turbulence, I enjoyed the "compass as an AI" solution! G

Off to find a wide-awake cat and a ****ed-off duck.

Do we have to undershoot or overshoot the cat on north or south
headings?

On May 19, 8:43 pm, "Ken S. Tucker" wrote:

That isn't possible.

Sure it is.
As long as you're not accelerating, which is something
that can be sensed by audio RPM , the magnetic
compass can operate as an artificial horizon too,
because it's like a plumb-bob.
It's of course, independant of operating systems.

You haven't flown, really, have you? If you had, you'd
know that the compass, being suspended from a pivot, is kept upright
by gravity, just like the ball in the turn coordinator stays in the
bottom of its tube by gravity. However, in a coordinated turn, the
TC's ball stays centered and the compass's card stays level with the
airplane's wings, not with the horizon. If it did we wouldn't need to
spend $900 on an attitude indicator; we could use the ball and
compass.
The compass reads all haywire during turns, too, not just
during acceleration. You can't use it to roll out on a heading. Timed
turns are for that.
Both you and Mx would be awful surprised the first time you
flew under the hood or in IMC. Vertigo, or what we call "crookedhead"
around here, would get you big time in no time. It surprises all new
guys, especially guys who "have it all figured out" and are trying to
teach the teachers. They come home with their tails between their
legs, same as the know-it-all trike pilot who has just had his first
taildragger experience.

Dan

wrote in news:1e17fe82-b0ac-4819-81f7-
:

On May 19, 8:43 pm, "Ken S. Tucker" wrote:

That isn't possible.

Sure it is.
As long as you're not accelerating, which is something
that can be sensed by audio RPM , the magnetic
compass can operate as an artificial horizon too,
because it's like a plumb-bob.
It's of course, independant of operating systems.

You haven't flown, really, have you? If you had, you'd
know that the compass, being suspended from a pivot, is kept upright
by gravity, just like the ball in the turn coordinator stays in the
bottom of its tube by gravity. However, in a coordinated turn, the
TC's ball stays centered and the compass's card stays level with the
airplane's wings, not with the horizon. If it did we wouldn't need to
spend $900 on an attitude indicator; we could use the ball and
compass.


It doesn't even stay level with the airplane! Compass dip will have it
doing all sorts of tricks. Trying to keep up with one of them in a turn
is very difficult to say the least. Even turning to a north or south
heading using lead lag should almost be classed as wishful thinking.



Bertie