cavedweller wrote in
:

On Feb 14, 9:12*pm, Bertie the Bunyip wrote:
K l e i n wrote
innews:2d099c70-cb73-40be-a62e-feb3015f5
:





On Feb 13, 3:36*pm, "Robert M. Gary" wrote:
On Feb 13, 1:44*pm, "Robert11" wrote:

Hello,

I guess de-icing is going to be a popular subject.

Question, please: *On commercial jet airliners like, e.g., a 767
o
r
7
57, is
there any in-flight deicing system for the wing and tail
surfaces, othe
r
than a leading edge pneumatic boot ?

What about the "main," large upper surfaces ?

How in general is wing de-icing accomplished on these new,
modern jets
?

Thanks,
Bob

Jets don't typically have boots. Most use hot air stollen from the
engines to heat the leading edges. Some use a "leak" system to
drip anti-freeze like solution on the tail surfaces to avoid
having to plumb the hot air to the rear, although this is less
common. I'm not sure that I woudl call the type of plane that
crashed less modern than a 767 considering by-pass jet engines
(the type in a 767) have been around longer than turbo prop
engines that were involed in this recent crash.

-Robert

The more I hear about this, the more it sounds like tailplane
icing. Take a look at
http://video.google.com/videoplay?do...60735779946for a
NASA
produced video on the subject.

Note that this flight started its plunge right at or after the
outer marker. *The outer marker is where you normally lower gear
and flaps. Lowering flaps is the thing that causes the tailplane
stall if the tailplane is iced up.

Rubbish.

Bertie- Hide quoted text -

- Show quoted text -

The NASA study on tail stall notwithstanding?

Well, OK not impossible, but Wing if anythng..


Bertie