Photos of Ice on the wings of a Crj 200

On Feb 17, 11:18*am, wrote:
I took some pictures of some ice accumulation on the wings if a
Crj-200. *Its a good example of how well the wing anti-icing works on
the Crj-200. *After seeing how much ice was picked up, I was surprised
that there was no icing in the tail at all.

Dear RJ pilot,
Has it occured to you that you are violating Sterile Cockpit
procedures by using your camera on short final ? I hope this was a
ferry flight. I like the way you snub your nose at prudent operating
practices by posting this to the web. You better hope a fed (Or your
Chief Pilot ) never sees these pics.
Frank

"Darkwing" theducksmail"AT"yahoo.com wrote in
:


"Bertie the Bunyip" wrote in message
.. .
Mxsmanic wrote in
:

writes:

I took some pictures of some ice accumulation on the wings if a
Crj-200. Its a good example of how well the wing anti-icing works on
the Crj-200. After seeing how much ice was picked up, I was
surprised that there was no icing in the tail at all.

The efficiency of the anti-icing features is impressive.

Did the aircraft behave differently with this amount of ice, or were
the effects unnoticeable? How long were you in icing conditions?
What actions did you take (if any) to avoid or escape the icing
conditions?

Gonna put your monitor in the freezer now?

Bertie

Damn thats funny.


Wanna bet he tries it?


Bertie

William Hung wrote:
On Feb 17, 1:41 pm, Mxsmanic wrote:
writes:
I took some pictures of some ice accumulation on the wings if a
Crj-200. Its a good example of how well the wing anti-icing works on
the Crj-200. After seeing how much ice was picked up, I was surprised
that there was no icing in the tail at all.
The efficiency of the anti-icing features is impressive.

Did the aircraft behave differently with this amount of ice, or were the
effects unnoticeable?

I think that answer is rather obvious.

How long were you in icing conditions? What actions
did you take (if any) to avoid or escape the icing conditions?

Looks like he turned on the anti-ice stuff. Again, fairly obvious.


Wil

The 200, like most airliners, has an "evaporative" anti icing system.
The leading edges are kept very hot, well above the boiling point of
water. When supercooled water hits the LE, the drops immediately
vaporize. If the LE isn't hot enough and the water just is heated above
the freezing point, it can cause "runback ice" because it flows back and
refreezes behind the LE.

The tail doesn't use anti ice because the tail area is large enough to
generate required downforce with ice. If anti ice was used for the
horizontal tail, it could be made a fair bit smaller.

John

John wrote in
:

William Hung wrote:
On Feb 17, 1:41 pm, Mxsmanic wrote:
writes:
I took some pictures of some ice accumulation on the wings if a
Crj-200. Its a good example of how well the wing anti-icing works
on the Crj-200. After seeing how much ice was picked up, I was
surprised that there was no icing in the tail at all.
The efficiency of the anti-icing features is impressive.

Did the aircraft behave differently with this amount of ice, or were
the effects unnoticeable?

I think that answer is rather obvious.

How long were you in icing conditions? What actions
did you take (if any) to avoid or escape the icing conditions?

Looks like he turned on the anti-ice stuff. Again, fairly obvious.


Wil

The 200, like most airliners, has an "evaporative" anti icing system.
The leading edges are kept very hot, well above the boiling point of
water. When supercooled water hits the LE, the drops immediately
vaporize. If the LE isn't hot enough and the water just is heated
above the freezing point, it can cause "runback ice" because it flows
back and refreezes behind the LE.


Actually, we only use them as de-ice these days, to prevent just such a
scenario as you describe.

The tail doesn't use anti ice because the tail area is large enough to
generate required downforce with ice. If anti ice was used for the
horizontal tail, it could be made a fair bit smaller.


Yeah, but the tail doesn't really accrue ice anyway. Actually, neither
does the wing. I think I can count on two fingers the number of times
I've de-iced the wing in a 737 in flight. Still haven't used it on the
75.

bertie

"Bertie the Bunyip" wrote in message
.. .
Mxsmanic wrote in
:

writes:

I took some pictures of some ice accumulation on the wings if a
Crj-200. Its a good example of how well the wing anti-icing works on
the Crj-200. After seeing how much ice was picked up, I was
surprised that there was no icing in the tail at all.

The efficiency of the anti-icing features is impressive.

Did the aircraft behave differently with this amount of ice, or were
the effects unnoticeable? How long were you in icing conditions?
What actions did you take (if any) to avoid or escape the icing
conditions?

Gonna put your monitor in the freezer now?

Bertie
the only thing worse than mxmanix is you ruining the thread. Just ignore
him.

"aluckyguess" wrote in :


"Bertie the Bunyip" wrote in message
.. .
Mxsmanic wrote in
:

writes:

I took some pictures of some ice accumulation on the wings if a
Crj-200. Its a good example of how well the wing anti-icing works on
the Crj-200. After seeing how much ice was picked up, I was
surprised that there was no icing in the tail at all.

The efficiency of the anti-icing features is impressive.

Did the aircraft behave differently with this amount of ice, or were
the effects unnoticeable? How long were you in icing conditions?
What actions did you take (if any) to avoid or escape the icing
conditions?

Gonna put your monitor in the freezer now?

Bertie
the only thing worse than mxmanix is you ruining the thread. Just ignore
him.




Very unlikely.


Bertie