Questions tagged [icing]

Questions about ice formation on aircraft, which degrades performance.

Filter by
Sorted by
Tagged with
18 votes
3 answers
19k views

How do large airliners de-ice in flight?

How do large airliners de-ice their surfaces in midair? In smaller planes like the ATR or the caravan there are deicing boots as per picture: How is this achieved on bigger aircraft, as there seems ...
Fabrizio Mazzoni's user avatar
14 votes
2 answers
6k views

Why do only some aircraft require tail anti-icing?

Why do some aircraft require anti-icing on the tail while others (Dassault Falcon Jets, Boeing 737, 747, etc.) don't?
Falconpilot's user avatar
16 votes
4 answers
14k views

How do you handle frost on a plane?

If you plan to fly on a cold morning and there is frost on the plane, what needs to be done? Do you have to remove the frost from the windows? wings? tail? fuselage? How should you remove a thick ...
xpda's user avatar
  • 5,690
3 votes
3 answers
5k views

What common forms of deice and anti-ice exist and what future alternatives are being researched?

For the leading edges of aircraft's flight surfaces, there are a few more common deice and anti-ice methods available. What are the most common systems? What are the alternatives? Is there any ...
ryan1618's user avatar
  • 14.8k
19 votes
1 answer
3k views

What's required for a plane certified to fly to Antarctica?

What special features besides the obvious long range does a plane have to have to fly to and land in Antarctica? I know not just any plane can make the trip, but I couldn't find many relevant ...
Cody P's user avatar
  • 6,725
19 votes
1 answer
1k views

Is it legal to take off with an iced windscreen?

Looking at this video on Youtube, I'm wondering if it is actually legal to take off with a windscreen iced like that? For VFR this is a no go, but what about IFR and under what conditions?
Krumelur's user avatar
  • 1,361
18 votes
2 answers
8k views

Is freezing of windows normal in airlines?

Recently I was flying on an Airbus A320. While cruising around 37,000 feet, I noticed half of the glass on the window had frozen. But it was a thin layer of ice. Was it anything to be concerned about?...
Firee's user avatar
  • 9,131
17 votes
4 answers
8k views

What would happen to a flying aeroplane if there's suddenly a brick-size hailstorm?

What would happen to a flying aeroplane if suddenly there is hail in the sky? For example, ice the size of a brick.
AmitG's user avatar
  • 403
15 votes
2 answers
3k views

Is there any disadvantage to having the de-icing system on?

I was watching Mayday S11E02 about West Caribbean airways flight 708 and the pilots turned off the de-icing system partway through the flight. It's not why it crashed, but I was curious as to if there ...
ptgflyer's user avatar
  • 2,146
14 votes
3 answers
7k views

Why is carburetor heat use discouraged on the ground?

I've been reading my private pilot books for when I start in February and Carb Heat has me stuck in a rut. I feel like I need to have a very solid understanding of this being that I live in a very ...
aaronstran's user avatar
12 votes
2 answers
561 views

Why would a canard wing be more prone to icing than a stabilizer?

Someone said a canard wing is more prone to icing than a stabilizer. If true, what would explain this?
user's user avatar
  • 536
11 votes
2 answers
5k views

What constitute "known icing conditions" and when can you fly VFR while they exist?

For flight operations conducted under 14 CFR part 91(other than subpart F) in VMC, what conditions constitute "known icing conditions"? Under what circumstances (e.g., altitude difference or no ...
J W's user avatar
  • 16.5k
11 votes
2 answers
2k views

How can ice form in an OAT of +20°?

According to a question that I came across while studying for my EASA exam on Aircraft General Knowledge, "icing" is most likely to happen in an OAT between "Between -5°C and +20°C"...
Tudor Ravoiu's user avatar
10 votes
1 answer
589 views

How was the "frozen wing flap grease" problem solved? (Antarctica, 2001 emergency evac)

In the June 16, 2016 Washington Post news article A rare, risky mission is underway to rescue sick scientists from the South Pole difficulties of flying in and out of the south pole in winter are ...
uhoh's user avatar
  • 5,758
10 votes
4 answers
4k views

How does flying below the freezing level in a thunderstorm help avoid the most critical icing?

AC 00-6A (Aviation Weather) Chapter 11 states: Do's and Don'ts of Thunderstorm Flying To avoid the most critical icing, establish a penetration altitude below the freezing level or above the level ...
jskypilot's user avatar
  • 3,809
10 votes
6 answers
21k views

Why is full carb heat recommended when reducing power below normal setting?

In my first flight lesson today, my instructor asked me to apply full carburetor heat when we had to reduce power to 1900 RPM in our Cessna 152. I was surprised by this as I didn't remember learning ...
yankeemike's user avatar
8 votes
1 answer
380 views

Can IPA be used as a FSII with MoGas, particularly with a Peterson STC?

This question established a basis for the use of 100% Isopropyl Alcohol (IPA) as a Fuel System Icing Inhibitor (FSII) in aviation gasoline systems. However, this Cessna Service Letter documents that ...
J W's user avatar
  • 16.5k
8 votes
1 answer
2k views

Does the AC-130 have de-ice or anti-ice protection for wings and surfaces?

Does the AC-130 have de-ice or anti-ice protection for wings and surfaces? Can it fly in icing conditions? Looking at many pictures I see no sign of a shiny "hot wing" leading edge nor any boots. Does ...
Pugz's user avatar
  • 3,658
3 votes
2 answers
8k views

Icing conditions temperature range: SAT or TAT?

Considering the general rule of thumb defining potential icing conditions: temperature between +10 and -40 degrees C and presence of visible moisture, is the temperature range regarding TAT (total ...
Musmus Klapa's user avatar
2 votes
2 answers
5k views

How does induction ice form in and affect jet engines?

Recently someone talked to me about the possibility of induction ice on the engine: He told me that because of conditions around fan and compressor blades (mainly because of pressure and temperature) ...
Kromen's user avatar
  • 635