

Dirty Rotten Flieger
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Everything posted by Dirty Rotten Flieger
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Me too. If I get shot down and try to jump in my wing men's planes, 90% of the time his engine flames out and can't be restarted even if I dive and fan the engine
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Wow ill buy this twice ! I'll buy a copy for everyone at christmas even though I'm the only one who plays flight sims!
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Graphics setting for gun smoke?
Dirty Rotten Flieger replied to Flying Toaster's topic in DCS: F-86F Sabre
You can just remove the file for smoke. I did this because the smoke effect is absurdly overdone in the p51 The smoke fil is located in Eagle Dynamics\DCS World\Bazar\shaders\effects\PFXSmoke.fx delete or rename PFXSmoke2.fx -
1700 km/h needs AOA 8 degrees to fly straight (bug?)
Dirty Rotten Flieger replied to stray cat's topic in MiG-21Bis
Thats ok no offence taken. Bernoulli was the wrong effect... sorry! I noticed myself that it cruises at high angles of attack. I'll explain what I was talking about though. The symmetrical wing means at zero angle of attack there is no lift whereas an asymmetrical wing will produce a low pressure area on the top which can produce lift at zero angle attack. So a piece of cardboard can produce lift if you hold it at high angle of attack. That's what I meant saying it's like a stabilizing fin on a rocket. Rather than like a normal wing. That makes sense doesn't it? Maybe the effect is exaggerated but thats what is going on isn't it? -
Thanks for the link... that diagram of the force vectors in autorotative descent is very helpful. It surprises me that the lift vector moves further forward of the axis of rotation as the angle of attack of the blade is increased. It explains how the rotor rpm goes up while it still gives lift. I can't say I really understand why though. I would expect the lift vector to move rear of the axis of rotation as the angle of attack increases. I jumped in the Ka50 armed with my new sense of vague misunderstanding, and found it easier to fly than the last time I flew it. For example if I am flying fast and low and want to stop suddenly, I pitch up . I would have pulled up on the collective thinking that the trust of the disk would help slow me down. But this can sometimes cause a vortex ring if it is a violent enough manoeuvre . So to day when I did the same maneuver instead I pushed the collective down it reminded me of an autorotation and there was no vortex ring vibration. Much more smooth manoeuvre . Probably a terrible idea but it seemed much better than what I was doing before. What would a real pilot do with his collective in this situation? The Ka 50 seems to be impossible to over rev in an autorotation
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Unable to use comms after takeoff...
Dirty Rotten Flieger replied to Wedge's topic in DCS: Ka-50 Black Shark
I'm having this problem too. Just to make sure I understand, the normal "\" doesn't work for the Ka-50? -
Thanks. I have track IR...
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Thanks for the intel. I know very little about choppers. They scare me ... being so close to so much visible kinetic energy.. There is mysterious and unseen forces at play in all that rotation and whirling... I was doing gliding autorotations 20% fuel at first then tried straight drops and just as you say the rotor will over speed if you push too far down on the collective. You say any one chopper is set up differently to another but in general when you push the collective all the way down does the rotor blade actually tilt past horizontal . So if you had the engine at full power and pushed the collective all the way down would the disk produce thrust upward? thanks again for your insights.
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I'm still getting my head around this. As the chopper accelerates toward the ground (straight down just to keep it simple) some of the downward acceleration is absorbed by the acceleration of the rotors slowing down the sink rate OR the chopper drops and at first the airflow turns the rotors spinning them up and then when you pull the collective up it slows the descent due to thrust downward from the rotors. It seems the seconds case is what happens but then again if I do a straight drop from say 2000ft I lower the collective quite a lot but not all the way and it is enough to both accelerate the rotor and slow down the descent. Now if the rotors are turned into the airflow and are being turned by the airflow then there should be no thrust coming downward from them but they still slow the decent... Seems counter intuitive but it does make sense too. The energy to accelerate the rotors has to come from somewhere and this leaves less energy to accelerate the whole chopper toward the ground... Probably a combination of both effects with the crucial flare coming from real thrust from the E stored in the rotors
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So I just bought the Huey yesterday and I was looking for the clutch so I could disconnect the engine from the rotor and try some autorotations... Then I found this thread and learned a lot. I tried a few today and started to get the hang of it i think... Any way after a few attempts I realise that you can do autorotation recovery from a hover and land without ever gaining any horizontal velocity. So I started to wonder what the minimum altitude I could successfully do an autorotation from a hover dropping straight down? 118ft !?! lol My hovering is very amateur but the landing is perfect! I am more than a little surprised this is possible! Minimum autoroataion altitude.trk
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I just bought the Huey and I'm trying to figure out how to use the flexible sight and I can't. I noticed that the controls the training instructor tells you to use don't work and some are wrong. So can anybody explain how to fly the chopper with my right hand and aim the copilots sight with the mouse in my left hand?
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Mig-21 SPS system, or the magic of blown flaps
Dirty Rotten Flieger replied to fable2omg's topic in MiG-21Bis
You keep a log book! wow ! thats cool :) -
When the RWR is detecting radar scans I get limited direction information... the four quadrants. But when they lock on me, all four quadrants light up and I now don't know which direction the lock is coming from. Is there a technical reason for the RWR losing the direction the enemy radar is coming from or was this simply a bad design choice by the original soviet designers
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1700 km/h needs AOA 8 degrees to fly straight (bug?)
Dirty Rotten Flieger replied to stray cat's topic in MiG-21Bis
I have wondered about this myself. I read that the wing has a symmetrical profile so there is no benoli effect. The wing works more like a fin than a wing... I wonder if that is why it has to fly with high angle of attack. Maybe it is a bug as you say. -
I adapted the Mig29 campaign to Mig21bis. here it is if you want it. https://www.digitalcombatsimulator.com/en/files/895430/
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Adjusting the Fw190 aileron trim tab...
Dirty Rotten Flieger replied to Anatoli-Kagari9's topic in DCS: Fw 190 D-9 Dora
OMG thanks you so much! -
I've noticed also that when I get killed in a mission and try to jump into my wingmans plane to continue the fight ...engine flames out. Every time no matter the G, or speed or AoA... can not take control of AI Mig21bis with out flame out
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Gee It's really baffling to me why our allied flights of Mig21 are attacking the enemy planes in mission 1. I played all the missions at least once before I uploaded and mission 1 I completed at least twice with no problem but now you mention it and I test it to see, sure enough the allied flights attack every time failing the mission... I deleted the allied flights in mission 1 to stop this problem.
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Cockpit with SPS-141 flare disperser panel
Dirty Rotten Flieger replied to Devil 505's topic in MiG-21Bis
Just so you know, when you don't have the SPS-141 pod you can still load countermeasures onto the RATO mounting points. You can then fire them with the drop RATO button which is under a red cap next to the throttle. Don't forget to power them up first though on the right side panel next to the AC power switch... Hope his helps -
Hi As the title says... I gave everyone weak missiles Aim9p, Aim7m, no Aim120 Enemies are turkish F5E, F4E, F16C All missions have AWACs and recons flights. I also increased the flight size from 2 to 4 Mig21. Send your second flight in first and this helps with sighting the enemy... This campaign works really well for the Mig21bis. Thanks to who ever made the original Mig29 version ! Every mission is a cold start too. I have been practicing getting it into the air as quickly as possible by just leaving the weapons and some of the avionics cold till i'm up. Trying to find out what the bare minimum system you need to take off is... The recent patch which got rid of the R-60A missile. kinda broke the campaign because I gave this missile to all the mig21bis in the campaign. The patch deleted all their loadouts... Anyway I fixed all the load outs and also fixed the problem with mission 1 and mission 5 objectives . Ps I forgot the link https://www.digitalcombatsimulator.com/en/files/895430/
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Steering/braking: Current, simplified behaviour or realistic?
Dirty Rotten Flieger replied to Corrigan's topic in MiG-21Bis
I've been using the analog stick on a dual sho9ck controller for all planes with a brake lever on the stick. Works quite well but the curve has to be edited to use it properly as the duel shock stick is centred in the middle. -
DCS: Mig-21bis - High altitude blackout
Dirty Rotten Flieger replied to jackmckay's topic in MiG-21Bis
I think the Devs have acknowledged that a bug exists with the O2. You start to get hypoxia when the O2 tanks still reads 50... -
can anyone point me to the dots mod? I hate icons really but I should try the dots mod and see ...
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Mig21 and fighter maneuverability in todays terms
Dirty Rotten Flieger replied to Dirty Rotten Flieger's topic in MiG-21Bis
The authors suggest that the Mig21 operators missed an opportunity to upgrade their Mig21bis so they can fire R-73 with a helmet sight. I wonder how many Mig21bis upgraded like this it would take to beat a flight of F15c armed with AIM120c? 4 F15c could carry 16 AIM120c I guess so assuming half hit you would need at least 8 Migs to even get in range of the R-73. Maybe 12 Mig21bis with helmet and R73 would challenge 4 F15c with AIM120c? So many variables it hard to calculate. I have often seen that quote by the "expert" saying Mig21 can beat F35 in a dogfight. I always thought this was total bull shit but now at least I can see why he would say this. Even if it is a simplification to say so.