Re: Refrigerator monitor ideas?

[Frank Olson <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>]

E. Lee Dickinson wrote:

>
>
> Nothign about the stall indicator allows it to detect airframe icing.

That's true, and by the time you hear it it's usually too late anyway
(as Bass pointed out)


> In
> fact, when picking up ice, a mechanical stall vane is likely to have ice in
> it and no longer work as intended. A pressure-based stall indicator is
> likely to be clogged by ice and be unable to detect the drop in pressure
> that makes it function.

The "stall warning" in a Boeing 737 is also linked to the control yoke.
  It's called the "stick shaker".  I seem to recall listening to the
cockpit voice recorder for the Potomac Crash and you could hear the
shaker in the background so the "stall warning" was definitely functioning.


>
> Loss of function of the stall vane (as well as your pitot-statics, of
> course) is one of the concerns.

The pitot tubes are heated electrically.  That's actually on the
pre-take-off checklist (along with turning on the windshield heat).


>
> :-P
>
> I don't know about snap rolling a 737, but I do know you can trim them up
> for inverted flight. Doesn't even require full thrust!  This is, of course,
> assuming a certain level of accuracy in MS Flightsim.


Flightsim's are fun.  What's really cool is getting the chance to "play"
in the actual full motion simulators.  :-)