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Posted
It's a 3 position switch [anti-Ice/off/Dust] both can't be on at the same time and the indicators tell us that also. Besides what situation would require both? If your landing in unimproved areas then you need dust protection. If your flying in the mountains or its freezing and snowing then anti-ice. I knew it affected engine power in anti-ice. Just wasn't sure about dust protect. Guess I'll make it a habit to turn this to off after takeoff.

 

Thanks for the reply ALpha

 

Actually, I would think you would need the 'dust' protection features with anti-icing to prevent pieces of ice being injested into the engine.

 

May not seem like ice flakes could do much, but you would be surprised how much damage a solid piece of something can do to a turbine engine, no matter how small that something is.

Posted

+1 for Alpha (again :)), keep it coming :thumbup:

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Posted

At first I was thinking that the compression and heat would melt the ice as it entered. So i did a search and found this article , its about how freezing drizzle can damage jet engines. It has also got some good pics of iced engines. enjoy:book:

 

 

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Posted

Thank you very much for the documention! I guess my question is:

 

Is damage caused to the engines by dust modeled in the game? I honestly have never used the dust protectors in-game and I have never lost an engine (that I know of) due to dust. I have lost an engine due to icing, but never dust.

Posted

Damage to engines from dust is modeled, but I think you have to hover in a dust cloud for some time to notice it. It's difficult to really do well, since in a real heicopter, damage from dust (erosion) is something that happens over time, and we don't have persistent airframes in a flight sim (yet).

 

With regards to the anti-ice and dust protection being off or on... I am pretty sure that when the switch is in the dust protector position, you just have the dust protector, and when it is in anti-ice, you have both. In other words, some portions of the inlet are heated using bleed air from the engines. This same bleed air is what creates the vacuum effect for the dust protectors to work. When you switch to anti-ice, that bleed air stays on and your dust protectors continue to operate, but you have the addition of electrically heated surfaces on some portions of the inlet and dust protector fairing.

 

I have attached another PDF (I wish I had the jpg exporter for Acrobat, sorry) showing the anti-ice for the Mi-17 engines, which may or may not be identical (I would expect them to work in a very similar fashion, considering the Ka-50 uses the same dust protectors and the same engines).

PZU-Heat.pdf

Posted

I had a feeling that anti-ice was both systems on. The power drop was just too severe for only electrically heated surfaces.

 

Is the dust protection system variable geometry (as in does it mechanical deploy and retract)? It seems like full power would require an unrestricted inlet air flow.

Posted

ha cool, thanks for the documentation. I always thought those things were protective armor for the engines on Hinds. Nice to know what they really are and how they work.

Posted (edited)
Damage to engines from dust is modeled, but I think you have to hover in a dust cloud for some time to notice it.
Actually, the dust cloud will dissipate in the simulation if you hover over the same point for more than a few seconds.

 

To experience engine erosion from dust ingestion, you need to keep moving slowly at minimum altitude, preferably at maximum weight.

 

Regardless, thanks for all your insights, A16!

Edited by EvilBivol-1

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Posted
Actually, the dust cloud will disseminate in the simulation if you hover over the same point for more than a few seconds.

 

To experience engine erosion from dust ingestion, you need to keep moving slowly at minimum altitude, preferably at maximum weight.

 

Now THAT is realism!

Posted

" persistent airframes "

 

This could be a wonderful feature, one of the best things ED could made for better realism. A must in any wish list.

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  • 6 years later...
Posted (edited)
Actually, the dust cloud will dissipate in the simulation if you hover over the same point for more than a few seconds.

 

To experience engine erosion from dust ingestion, you need to keep moving slowly at minimum altitude, preferably at maximum weight.

 

Regardless, thanks for all your insights, A16!

 

What's the max engine wear you can experience in this condition? If I just did a very slow ground-effect moving hover for a full tank of fuel (2.5 hours?) how much engine capability would I lose? 1%? 3%?

 

edit: sorry for the zombie thread resurrection!

Edited by gospadin
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