I don't want to undermine your video, for practical purposes it all still holds true, but what you're describing and attempting to prevent isn't VRS, it's Overpitch. VRS is bandied around way too much, it rarely happens. Overpitch happens all of the time. What's the difference? In a nutshell Overpitch is when the engines can't power through increased rotor blade pitch, so RRPM goes down. This is what is demonstrated in each of your crashes. VRS is when the tip vortices recirculate and tip lift (which accounts for the majority of lift due to tip speed) decays. RRPM is basically unaffected and the engines aren't struggling. The results look very similar but one is an aerodynamic phenomenon and the other is a lack of power. There's a lot more to this, but hope that provides some tid bits of info.

Just started flying in DCS World, picked up the Mi-8 and fell in love. Your tutorial series is simply the best KZfaq has to offer. Cannot say thank you enough!

Oh man! You and your channel are a real treasures of the DCS world. God bless you for being talented enough to be able to explain things nobody else can. You just told me all the needed principles and connections that is needed to successfully pilot this simulator. Thank you dear sir, I was struggling for more than a year and a half to understand this. And, yes I have read the manuals for several helicopters modules but it was too hard to get it all in one whole understanding. Thank you once again, have a great time.

What an absolute goldmine this channel is!

Found your t00bs after picking up the Mi 8. Had the Hind for a while and slooowly getting there with short take off/landing - struggling with hover. Got the Mi 8 today and love it AND found your channel which has already shown me heaps. Thanks dude =]

TL;DW - Those jackwagons on Facebook telling you the Mi-8 flies better heavy, and you need to learn that way, are mostly full of nonsense. Excellent video. Thank you for providing the mission file. A lot of people making tutorial videos totally skip this for some reason but Being able to start and fly the exact same route often helps a lot. I've watched most of your Mi-8 videos at this point and one thing I don't think you ever addressed is when and how to use the throttle on the collective. Some people say you shouldn't ever move it but you're clearly upping it for things like takeoffs and landings rather than leaving it right in the middle. I've noticed in the Mi-8 it makes a difference but not really in the Hind so far. Maybe a short video on the collective throttle and engine throttles?

I usually hate long videos, but yours are a very nice exception... cant see it on a single sitting though.. real life gets in the way :) thanks for still adding to this series.

Thank you so much for this, very much appreciated vsTerminus! I looove the Mi-8 in DCS, have spent a lot of time enjoying her. I am a Hipster 😁

Went and bought this beast recently. Now I can't stop myself from joining S&R servers. I'm surviving about 80% of the VRS/overpitch situations, she always bites me when I think I've calmed her. I still don't slow down as smoothly, either too soon and I take a long time getting to the landing site, or overshoot then have to go-around. Not even started using weapons yet. A "this is how you pick up peeps using ropes in search&rescue servers" video would be good. I can hover, but when you've got a few in the water, it's damned hard making sure your alt is correct and stay straight over the swines! Keep up the good vids.

Praise the lord a new vsTerminus upload ! I have to say, your videos are one of the reasons I have over 1500h on DCS now. Hopefully they get more people to fly the Magnificent eight !

Love that you are talking about those often overlooked basics like weight and balance! Keep up the great work

Sorry, I'm going to have to make a couple comments on this one (or write another essay, we'll see how it turns out). I know this video probably took a lot of work to put together, so I'm not trying to be a jerk, just trying to be constructive. 9:45 I would argue that a change in pressure (and density) altitude constitutes a change in conditions. Also note that the temperature will decrease with altitude (I think DCS implements the international standard atmosphere or something roughly equivalent, but probably not much more complex than that) so your estimate at Kerman would likely be a bit conservative (not that that's a bad thing). 15:12 No, it's not to do with the blade design. All helicopter rotors (except possibly some really terrible ones, like an air screw) will see a decrease in power required as forward flight increases. 15:38 No, the blades are absolutely designed to be efficient in a hovering condition, especially in a utility helicopter like the Mi-8 which is designed to carry heavy loads. It's true that there's a tradeoff between hover efficiency and forward flight efficiency when it comes to blade design, but it's not nearly as drastic as you're making it out to be. A high efficiency hovering rotor will still require less power in forward flight. 16:57 This is a bit of a pedantic point, but there's no "horizontal inflow." Inflow is defined as being the component of velocity that is normal (perpendicular) to the rotor disk. Inflow can be induced (as it is in hover) and also due to translational motion such as from an axial climb, or the forward flight velocity if the disk is tilted down. 17:20 I really don't know what you mean by "all of the air." There is no single point where the air passing through the rotor is completely horizontal or "in-plane" (unless there's no thrust or you're in some unusual transient condition). Yes, the wake will skew back (and quite quickly) with airspeed, but as long as the rotor's thrusting and the disk has zero or negative angle of attack, there will always be a downward component to the rotor inflow. Overall, the whole discussion of ETL is very simplified at best or largely misunderstood at worst. The general idea is there, but characterizing it as "some air is vertical, some is horizontal" is simply the wrong way to go about it, in my opinion. What you really need is to show a power required curve. Here's one from one of my rotorcraft classes found using basic (uncorrected) momentum theory and aerodynamics: i.imgur.com/QZezsnV.png. The induced power (Pi) decreases as forward flight speed increases. This is what you're getting at. The power required eventually goes back up largely due to the parasite power Pp (power required to overcome airframe drag) but also due to some increase in rotor profile power P0 (essentially blade airfoil drag). But at about 80 knots or so, you'll reach the "bucket speed" or best endurance speed. 18:00 I really dislike the term "transverse flow." It's not a term we use in engineering; I've only heard pilots use it. Basically, it's a misleading term for the longitudinal inflow gradient from the leading to trailing edges of the disk (there's nothing "transverse" about the flow). Basically, as edgewise flight speed increases, the wake skews aft, and the forward edge of the disk experiences less induced inflow and the aft end of the disk sees increased induced inflow. The gradient between these two extremes is pretty linear. It was first proposed by Glauert in 1926 to explain discrepancies between measured and predicted lateral forces on autogyro rotors (This is briefly covered in NASA TM 102219). If you normalize the gradient by the total mean inflow, the gradient will actually increase with forward flight velocity, but because the total induced velocity decreases with forward speed, the actual dimensional difference in induced velocities at the forward and aft ends of the disk decreases after reaching its peak. The inflow due to forward speed and disk angle of attack dominates at higher speeds, which is why you only see the effects of so-called "transverse flow" (namely, the lateral cyclic requirement) in the low-speed transition region. 23:30 In real life, your airspeed indicator will be unreliable at low airspeeds. It certainly wouldn't be providing good information by the time you're at a speed where you risk entering VRS. 24:08 This is something every simulator gets wrong, but in real life, there's a noticeable lag in the vertical velocity indicator (on the order of seconds). It will show you trends, but not an instantaneous speed. If you're in a descent and the descent rate is increasing significantly, you may be over your ~4m/s descent maximum before the indicator tells you. There are instantaneous indicators (which are augmented by accelerometers to supply the high-frequency information), but I'm not sure if that's what would actually be a typical Mi-8. 24:52 Why the Russians don't make the nominal RPM 100% is beyond me. 25:26 That's another little Russian idiosyncrasy. I don't really know why you need to have that gage. A main rotor torque indicator would be much more useful, I would think. 26:30 Now for something positive! This section is really well done. I'm not exactly sure how engine RPM can move somewhat independently from rotor RPM; on most western helicopters, the needles remain together unless the rotor is autorotating. Could be a different Russian engine or transmission design thing. Regardless, it's a good demonstration of how the governor has a lag. You should also note that pulling up hard on the collective may over-torque the rotor and potentially damage the transmission. That's another reason it would be nice to have a torque gage in the cockpit. 39:35 Something DCS does poorly is show the rotor disk. During my one helicopter lesson, the instructor mentioned that you want to use the visual distance between the rotor disk and the horizon to judge the attitude, and as you get more proficient, you learn to associate that attitude with a speed (ie, you could hold a 50 knot attitude). Because of the lack of a good visual rotor disk blur, this feedback in DCS is pretty poor. Granted, in the Mi-8, you're seated proportionally much farther forward below the disk than in an S-300, so the same visual cues may not apply. 41:38 No, again, it's not half the air is horizontal, half the air is vertical. It's more complicated than that. I think it would be enough to say that you're on the edge of losing ETL. 42:39 I don't think pilots spend much time in that "shudder" simply because it's quite uncomfortable. They're usually either above or below it. You can air taxi at low speeds "below" the shudder. Probably a better question to ask an actual pilot though. Anyway, that's what I've got for this video. Hope you are able to find it useful. I'm happy to discuss everything in more detail, if you're interested, as well.

The Royal Guards skin returns!

Outstanding work, thanks! There's sooo much new information that other KZfaqrs didn't mention. I didn't know ab out the power loss with anti-ice and dust filters turned on.

Wow. Incredibly production quality. I haven't watched the entire thing yet but I can tell you worked hard on this.

I know this video is an hour and fifteen minutes long. And I know I could find out all this information on my own. But, it would have taken me a whole lot longer than one hour and fifteen minutes. Thanks for making this and saving me (and everyone) all that time and frustration.

This is going to be fundamental, can't wait to get back in the hip. Definitely spent most of my landings in a burning crater, but there are some key things about coming out of ETL that I definitely was not paying attention to.

Excellent video as always. Thank you very much for these tutorial series! I know it takes a lot of time to produce this quality YT video, and even more time to master these things to be able to teach them. Helicopter flying is so much harder than fixed wing, and so much more fascinating because of that, and you're helping bridge the gap. YT needs more people like you :-)

Oh. My. God! Thank you so much for this video! I was struggling "mightily" with my transitions to hover (I can confidently say that I never executed a good one actually). Then I watch your video from start to finish (the whole 1:20:00-ish... 😊), went into DCS to try it on the Huey and completed 2 successful transitions back to back!! Like almost perfect! Amazing what careful, detailed explanation of the theory and do's and don'ts can do! Thanks a million for taking the time to make this video, it's just plain fantastic! (As my many, many uses of exclamation marks in my comment may indicate...)

Awesome production man. Love that you include mistake videos. Teaching hands on trades during Covid has taughtm me that making something like this takes an INCREDIBLE amount of time. These tutorials have helped me so much with the Mi-8! Cheers

Absolutely superb video! Most helpful. Thank you.

Excellent information and tutorial. Thanks, much appreciated.

This helped a great deal in regards to helping me learn how to land, thank you

I love your style of videos. Glad you decided to leave in the end part and glad you take your audience into account when you're deciding what type of videos to make. This was a great video and makes me want to get into my hind and try out these techniques.

I wish I could smash likes 1000 times . Great video! I loved your Mi8 campaign playthrough too!

Great instructional video. I’ve been flying the Bell 47 in MSFS recently and had forgotten how much fun this module can be 👍 Both have excellent flight models. Keep up the good work 😉

great vids best tutorials ive seen

Excellent vids hope you come back soon

simply beautiful, thx homie

Wow! I thought I was good at this, but I was doing quick stops all the time :\ no wonder there was so much pain... thanks for a great video vsT!

18:40 You were wondering how much the transverse flow shaking is present in a real Mi-8/17. Here is a real Mi-17 transitioning to hover: kzfaq.info/get/bejne/rbJ5icxq2LbTmKc.html The shaking and noise is there but imo not as strong as in DCS.

This is good stuff!

Boy! I really need to get into 1440 monitors. The clarity of your video is outstanding. As to the tutorials, where are an amazing set of training tools. These have given me much more understanding of flying the Mi8 in DCS. Will you do something similar for the Mi24 and the AH-64?

not gonna lie school bus livery on the hip would look good

I watched your very good and useful video thinking of the Hind who needs a good amount of pitch up to slow down :-) But I would ask you how is important using good/expensive stick (maybe with an extension), throttle and rudder pedals to get better control of the helicopter? It could be useful referring to a 1 - 10 scale rating. Thx

Love your vids, is there a plan to do one for employing weapons ?

I'm looking for a helicopter to buy as my first heli. I got a new account so I got the 50% discount but not on the hind so that's not an option anymore and i'm going to wait for the apache if I want a gunship so i'm kinda iffy about the KA-50, I don't like the huey that much but than I tried the Hip and I kinda fell in love really unexpected! I thought it would be bulky and slow but it's actually pretty fast for its weight and handles great. I also love the firepower it has while still being able to do the search and rescue and the transport roll! How did you get your graphics that good? Is it a Reshade preset or are you using anything other than the normal graphic options? What are your settings?

Good stuff. I know most of these tactics, but need so much more practice as I forget the must hit numbers when things start going sideways. What are your curve settings for your controls? I have a hard time with small corrections, but I do not want to deaden the center area too much as that would teach bad habits vs real life setups. I mean I have to be prepared when the SHTF and I find a random abandoned russian chopper to fly my family to safety. But obviously the stick in an IRL chopper has so much more throw than my VKB NXT.

Hello Please why is the best sitting Défaut, central or third Trim on lacet or not ? Thanks very Mitch and sorry for me bad inglish👍👍👍👍👍👍if you Can a little vidéo for that i would be very thankful

Does DCS model weather to that degree? Such as colder temps, like flying in the winter, are much better for generating lift because cooler air is denser, thus flying on a very hot day is bad for performance. Same with altitude. Taking off from 5k feet is much different than sea level. Does DCS take all that into account? Even baro pressure? I will try some different scenarios to see but I would like to know if you know how far they took it.

ahhh help, i use the central position trimmer mode but it behaves like its in default trimmer mode when i press the trimmer button after making small corrections

The colors of your game look amazing, could you share how you got it like that?

I know, it‘s off topic, but can you elaborate on the weather and time settings, used in this mission, and if you use any other enhancements like reshade? thank you!

Hello, how did you mount your VKB base without desk mounts? Can you put screws through plate you get with VKB base? One more question, do you have ultimate edition of VKB III grip? Is it worth it buying VKB Ultimate edition or its just fine to go with VKB non ultimate version? I heard its just a build quality? Ultimate is built of metal and non ultimate is built of plastic? Can you give me some suggestions on those questions? Sorry for long comment. Thank you.

There was this tutorial on landing the Su-25 that I watched a while back: it either slows down, or goes down, but not at the same time. It just clicks in my head: for something as heavy as a Hip, I really want to either slow down or go down

hey vsTerminus how is your lighting wayy better than other youtubers is it a filter?

What spring setup do you use for helicopters?

Could you share your reshade settings in the description, please/

Nice video. What are your pc specs?

Great video, really informative. However, its not pronounced huvver.......really irritating :)