Frederf Posted January 23, 2009 Posted January 23, 2009 Plenty of switches are labeled A | OFF | B when they really mean A+B | OFF | B.
Sealpup Posted January 23, 2009 Posted January 23, 2009 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.
sobek Posted January 23, 2009 Posted January 23, 2009 +1 for Alpha (again :)), keep it coming :thumbup: Good, fast, cheap. Choose any two. Come let's eat grandpa! Use punctuation, save lives!
opformaster Posted January 23, 2009 Posted January 23, 2009 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: -op4 Rig Specs: AMD FX-60 @ 2.6ghz - DFI Lanparty SLI UT - 4gb Mushkin Redline Ram - WD Raptor 300gb HDD - EVGA 260GTX 940mb - SoundBlaster something Live:P - Samsung 20.1" Syncmaster 204B (Camera) and Shuttle 17" xp17 (Abris & Shkval) Flight Controls: Franken Force CH 568/Logitech Wingman Force 3D Hybrid - CH Pro Throttle - Logitech Momo Wheel Conversion to FFB pedals - Belkin N52
AlphaInfinity Posted January 23, 2009 Posted January 23, 2009 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. [sIGPIC][/sIGPIC] |Core i7 5820k@3.8ghz|ASUS X99 Deluxe mobo|16GB Corsair Dominator Platinum DDR4 2666|EVGA GTX980 SLI | 4x500GB Samsung PRO SSD|Corsair RM1000 GOLD|Track IR5|5x LG 27inch LCD| Windows 8.1 PRO
AlphaOneSix Posted January 23, 2009 Author Posted January 23, 2009 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
Frederf Posted January 23, 2009 Posted January 23, 2009 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.
AlphaOneSix Posted January 23, 2009 Author Posted January 23, 2009 The only moving part is the air valve that opens and closes. Nothing in the fairing or inlet moves.
predaeus Posted January 26, 2009 Posted January 26, 2009 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.
EvilBivol-1 Posted January 26, 2009 Posted January 26, 2009 (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 January 26, 2009 by EvilBivol-1 - EB [sIGPIC][/sIGPIC] Nothing is easy. Everything takes much longer. The Parable of Jane's A-10 Forum Rules
miguez Posted January 26, 2009 Posted January 26, 2009 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!
Esac_mirmidon Posted January 27, 2009 Posted January 27, 2009 " 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. " You must think in russian.." [sIGPIC][/sIGPIC] Windows 7 Home Premium-Intel 2500K OC 4.6-SSD Samsung EVO 860- MSI GTX 1080 - 16G RAM - 1920x1080 27´ Hotas Rhino X-55-MFG Crosswind Rudder Pedals -Track IR 4
gospadin Posted November 12, 2015 Posted November 12, 2015 " 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. Or just go into the mission editor and drop your engine life by 1% for every hour flown. 1 My liveries, mods, and missions for DCS:World M-2000C English Cockpit | Extra Beacons Mod | Nav Kneeboard | Community A-4E
gospadin Posted November 12, 2015 Posted November 12, 2015 (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 November 12, 2015 by gospadin My liveries, mods, and missions for DCS:World M-2000C English Cockpit | Extra Beacons Mod | Nav Kneeboard | Community A-4E
sobek Posted November 12, 2015 Posted November 12, 2015 The necroing is strong in you. 1 Good, fast, cheap. Choose any two. Come let's eat grandpa! Use punctuation, save lives!
gospadin Posted November 12, 2015 Posted November 12, 2015 The necroing is strong in you. haha it came up in a search result and I didn't look first, sorry My liveries, mods, and missions for DCS:World M-2000C English Cockpit | Extra Beacons Mod | Nav Kneeboard | Community A-4E
ShuRugal Posted November 13, 2015 Posted November 13, 2015 Necro thread or not, persistent airframes in campaigns would be a handy feature.
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