How is icing simulated in prepar 3D v3 , plus ASN?

It's simulated but you won't see any visual indications of it. You'll get like pitot icing and other things but it can be combatted by turning on your probe heats.

I know that the A2A C182 actually simulates foggy windows, if that helps.  Bascially, the windows are sensitive to temperature so you have to use defrosters and heat to clear the windows.  On point though, it may be up to the individual model to display, show, simulate such conditions but as Warriorpilot stated, your immediate and noticeable indications would be through gauges and/or computer readouts.

 

-Jim

Im doing an IFR flight over the cascades at 15 F degrees and there should be ice, but airspeed still shows.

Any other indications?

Reduction of speed? Feeling or heavy airplane?

I use FS Captain and it's weather system works with ASN to produce one of the best simulations of icing and de-icing (including ice on the taxiways and runways, making your plane slip and slide if you are not careful).    While there is still no way for it to show ice visually you do get an indication of how much ice, in lbs, has accumulated on the wings and it will effect the flying characteristics of whatever aircraft you are to the point of killing you if you don't take care of it with proper de-icing procedures, either on the ground or in the air.   Even simulates ice getting into the engines..  that sucks when your #2 cuts out because of ice choking.... @_@

Im doing an IFR flight over the cascades at 15 F degrees and there should be ice, but airspeed still shows.

Any other indications?

Reduction of speed? Feeling or heavy airplane?

 

I know that carburator ice is simulated in the core of P3D.

 

Not sure if other types of icing are (wing / propeller).

 

Some of the add on aircrafts simulates this by its own. Once, I got wings icing in Twin Otter Extended and I could barely fly straight without stalling.

Im doing an IFR flight over the cascades at 15 F degrees and there should be ice, but airspeed still shows.

Any other indications?

Reduction of speed? Feeling or heavy airplane?

 

Not so. Icing is a function of temperature, humidity and pressure, not a single factor.

 

At that temperature you are actually below the major point for icing. Key point for formation of ice is actually at around 8-10 ° C down to around zero. But it does depend on the type of accretion

 

http://www.skybrary.aero/index.php/In-Flight_Icing

I use FS Captain and it's weather system works with ASN to produce one of the best simulations of icing and de-icing (including ice on the taxiways and runways, making your plane slip and slide if you are not careful).    While there is still no way for it to show ice visually you do get an indication of how much ice, in lbs, has accumulated on the wings and it will effect the flying characteristics of whatever aircraft you are to the point of killing you if you don't take care of it with proper de-icing procedures, either on the ground or in the air.   Even simulates ice getting into the engines..  that sucks when your #2 cuts out because of ice choking.... @_@

Hi, Brian, sorry a bit of topic, but could you point me to the post in which you set your 'ASN SETTINGS'. With the upgrade to v3 I forgot to make a note of them before installing asn new package.

bob

Not so. Icing is a function of temperature, humidity and pressure, not a single factor.

 

 

Yes. It really comes down to the amount of supercooled liquid water in the cloud (usually found in updrafts). With that said, glaciation of the cloud water usually takes off below -10 C, but ultimately it depends on whether there is enough lifting of air to condense the water in the first place. Doesn't take much though (2-3 m/s) to condense 0.6 grams of liquid water per cubic meter, which I think is a threshold for hazardous icing (if exposed long enough to those conditions).

Yes. It really comes down to the amount of supercooled liquid water in the cloud (usually found in updrafts). With that said, glaciation of the cloud water usually takes off below -10 C, but ultimately it depends on whether there is enough lifting of air to condense the water in the first place. Doesn't take much though (2-3 m/s) to condense 0.6 grams of liquid water per cubic meter, which I think is a threshold for hazardous icing (if exposed long enough to those conditions).

 

True and then one must consider the localised pressure variation across the exposed surface, its prior ambient temperature and time duration of exposure.

 

It's probably far too sophisticated a concept to be represented properly in the P3D world, without additional programming. However we can simplify our answer, seeing as how motoadve also posted the same question in the A2A 182 forum, here's the advice:

 

Don't fly a GA aircraft in icing.

 

As with many things exceptions exist. The Cessna 182 isn't one of them...  :Shame On You:

Actually this is what simulators are for.

I want to use it in the simulator to see how affects an airplane.

Same as practicing failures, or IFR approaches under minimums ect.

I've never experienced structural icing in FSX or P3D, but have in X-Plane often... that might be a better bet for you as it's modelled in the default sim.  But, having said that as a fellow real world pilot, avoid ice unless properly equipped.  As ice accumulation is so random it's not like anything in the sim would help you real world... it might only create a false sense of security.  That crap can build in no time to a point where you are only headed to your crash site.

 

But, having said all that, P3D needs to model structural icing by default as I try not to mess with X-Plane....

Hi, Brian, sorry a bit of topic, but could you point me to the post in which you set your 'ASN SETTINGS'. With the upgrade to v3 I forgot to make a note of them before installing asn new package.

bob

 

Oh... wow... ummmm...  I have no clue how to go find my old post.

 

The biggest settings to set are    Min/Max cloud draw distance and viewing distances.        For clouds I use  83 miles for both min and max.    For the visuals I use 0 for min at ground, 50 max at ground and 80 miles in the air.   This, to me, gives the most realistic view of the world from the cockpit based on what I see in the real world when i fly.

For clouds draw I use 90 min 110 max, 

 

Visibility, Ground min 0 max 15 miles, upper 110 to match max cloud draw.

 

Works perfect with auto gen etc.

Actually this is what simulators are for.

I want to use it in the simulator to see how affects an airplane.

Same as practicing failures, or IFR approaches under minimums ect.

 

Then as the aircraft is an addon from a particular developer, you need to get the answer from them as to how much they choose to model a set of circumstances under which the real aircraft would never operate in real life.

 

A2A aircraft typically mist over the windscreen, freeze the pitot tube, but do not provide any visual cues to ice propagation so you are stuck with the default effects, which are simply not representative.

 

I'm pretty sure they don't model anything that far beyond the standard dynamics for the very reason I mentioned - in real life you don't fly in icing unless you have an IFR license, suitably equipped aircraft, and some pretty accurate METAR or onboard telemetry to show you when you're getting in over your head. Ice can turn to hail in cloud in seconds, and that can easily knock an airplane out of the sky, damage its intakes or engines, or cause massive accretion issues that can upset CoG, lift and control surface response. 

 

The practice for a real world pilot is to recognise incipient icing and take immediate and effective action to remove the aircraft from the risk. EVEN if it is equipped to deal with it. De-ice systems are designed to mitigate the effects of icing while the PIC seeks the above. Typically by climbing above, or descending below the ice layer.

 

So you won't be `simulating` anything. If that is what you are looking to achieve then perhaps take Brians' advice about FS Captain, or look at other aftermarket addons.

 

The Majestic Dash 8 Q400 does have an effective representation of icing.