The Ticketor
Topic Author
Posts: 427
Joined: Tue Oct 24, 2000 9:02 pm

Deicing Engine Inflight

Thu Jan 03, 2002 7:22 pm

Does anybody know if it's possible to de-ice an engine in-flight by injecting de-icing fluid into it? I hear about this today, but not sure if it's true. This was supposedly done by an IB MD-80 landing at ARN yesterday.
 
sudden
Posts: 3934
Joined: Fri Jul 13, 2001 5:20 pm

RE: Deicing Engine Inflight

Thu Jan 03, 2002 9:11 pm

Funny that you bring this up. I did read that article, and wonderd the same thing.
When in doubt, flat out!
 
ewr757
Posts: 354
Joined: Mon Apr 03, 2000 8:47 am

RE: Deicing Engine Inflight

Thu Jan 03, 2002 11:18 pm



Complete BS. Jet engines (frontal areas, cowl, vanes, blades) are "anti" iced by bleed air.

More proof that 99% of what is written by non aviation specific journalists is lacking any basis of fact.
 
SafetyDude
Posts: 3654
Joined: Fri Sep 07, 2001 10:02 am

RE: Deicing Engine Inflight

Thu Jan 03, 2002 11:57 pm

I know when the L-1011 wanted to deice it's wing or something, they would have to turn galley power off.
But I think that was the WING not ENGINE...hmmm now I'm wondering  Confused
-Will
"She Flew For What We Stand For"
 
L-188
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: Deicing Engine Inflight

Fri Jan 04, 2002 12:00 am

I have to go with EWR757, However there have been propeller de-icing systems that used fluid.

But that pretty much went away in the 1950's
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
 
411A
Posts: 1788
Joined: Mon Nov 12, 2001 10:34 am

RE: Deicing Engine Inflight

Fri Jan 04, 2002 1:17 am

Actually, propeller alcohol fluid deicing is still used on some models of light aircraft....and on the wing as well. The TKS system works quite well.
Jet engines use bleed air for anti-ice. However, it must be switched on in time otherwise it's DEICE time....with surprising results.
 
EssentialPowr
Posts: 1646
Joined: Wed Sep 06, 2000 10:30 pm

RE: Deicing Engine Inflight

Fri Jan 04, 2002 5:57 am

The Hawker 800 uses anti ice fluid thru tiny pores in the leading edge of the wing, called a "weeping" wing.
Engine lips/inlets are heated w/ bleed air...
 
L-188
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: Deicing Engine Inflight

Fri Jan 04, 2002 5:06 pm

Yup...I have seen a couple of Skyvans with TKS installed for deicing the tail.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
 
The Ticketor
Topic Author
Posts: 427
Joined: Tue Oct 24, 2000 9:02 pm

RE: Deicing Engine Inflight

Fri Jan 04, 2002 7:55 pm

So we agree that air was used (my theory all along), and not some fluid then?
 
Twotterwrench
Posts: 1087
Joined: Tue Jan 16, 2001 5:57 pm

RE: Deicing Engine Inflight

Fri Jan 04, 2002 11:10 pm

Hot air on every case I know of. Some cowling inlets will use a boot (Dash 8 for one) for de ice, but even these are of course pneumatically operated. Any fluid going into the inlet would be for water injection purposes.
 
Metwrench
Posts: 715
Joined: Fri Aug 17, 2001 11:25 am

RE: Deicing Engine Inflight

Sat Jan 05, 2002 1:20 pm

Too bad P&W can't make an engine with enough "steam" to actually provide for engine inlet anti-icing.
 
TimT
Posts: 168
Joined: Sun Jun 03, 2001 1:38 pm

RE: Deicing Engine Inflight

Sat Jan 05, 2002 1:21 pm

All of the heavy commercial jets I know of use bleed air for de-ice. DC-9 has 3 valves mounted on each engine from the compressor, and the same duct that feeds the packs also delivers air to the wing and tail systems. The 3 valves on the engine route air to the inlet guide vanes and the fuel heater.
 
JETPILOT
Posts: 3094
Joined: Tue May 18, 1999 6:40 am

RE: Deicing Engine Inflight

Sat Jan 05, 2002 2:33 pm

Metwrench ????

The 727 has engine TAI.

JET
 
Twotterwrench
Posts: 1087
Joined: Tue Jan 16, 2001 5:57 pm

RE: Deicing Engine Inflight

Sat Jan 05, 2002 2:47 pm

Hey Jet, long time no see...metwrench is taking a jab at the PT-6...long time Garrett guy that one is...
Yet one more advantage to the PT-6, Metwrench, is that it doesn't need anti-ice on the inlet to the engine. That's what you get when you are smart enough to put the inlet inside of the cowling where it is protected from ice.. and FOD.. and flame-out from turning on your anti-ice... need I go on...Garretts.. ha.. such a silly little engine.
 
JETPILOT
Posts: 3094
Joined: Tue May 18, 1999 6:40 am

RE: Deicing Engine Inflight

Sat Jan 05, 2002 4:15 pm

Guess I've been out of the loop too long !!!!

A kinder gentler Twotterwrench?  Smile Missed you too love muffin.

Hehehehe !!!!

JET
 
Twotterwrench
Posts: 1087
Joined: Tue Jan 16, 2001 5:57 pm

RE: Deicing Engine Inflight

Sat Jan 05, 2002 6:11 pm

I know it's hard to believe Jet, but they actually branded me a trouble maker. Little ol me? So, tough as it is, I am trying to be a little less "antagonistic" at least in the tech and civil forums. Those weenies in non-av still get to "feel my wrath" when they say something stupid, but I enjoy the rest of the site so I am trying to behave myself....it's tough...
 
VC-10
Posts: 3546
Joined: Tue Oct 26, 1999 11:34 am

RE: Deicing Engine Inflight

Sun Jan 06, 2002 5:43 pm

SafetyDude,

I know when the L-1011 wanted to deice it's wing or something, they would have to turn galley power off. - WHAT?????????? I find that impossible to believe.
 
Metwrench
Posts: 715
Joined: Fri Aug 17, 2001 11:25 am

RE: Deicing Engine Inflight

Mon Jan 07, 2002 4:59 pm

Oh Twotterwrench, you silly Man.

Why not just put the inlet up front and do away with all those ice deflectors, actuators and ducts? Build a motor with enough steam to extract some "hot" bleed air to anti-ice the inlet in the first pace?

Oh! Silly me! Someone already did it! It's called a Garrett!

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