DCS Mi-8: Hover Tutorial

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  • čas přidán 28. 07. 2024
  • Let's look at how to hover in the Mi-8. It's all about keeping yourself one step ahead of the helicopter and correcting before you see the effects of your own inputs.
    ---------
    00:00 - Intro
    00:50 - Quirks & Features: Forward-tilted rotor disc
    02:37 - Concepts: Translating Tendency
    05:12 - Concepts: Weathercocking
    10:41 - Visual: Cyclic Inputs
    13:30 - Concepts: Ground Effect
    16:00 - Concepts: Light On Wheels
    17:45 - Concepts: Dynamic Rollover
    21:24 - Hovering without AP
    29:20 - Hovering with AP
    ---------
    My Hardware:
    - Saitek X-56 (2016)
    - Saitek Pro Flight Rudder Pedals (The plastic ones)
    - NaturalPoint TrackIR 5
    - Blue Yeti
    Relevant Mods:
    - Mi-8 Black English Cockpit by Devrim: www.digitalcombatsimulator.co...
    - Unofficial RoughMet Patch: www.digitalcombatsimulator.co...
    - Ace Combat Erusean 3rd RGR Livery: www.digitalcombatsimulator.co...
    Flight Manuals:
    - Chuck's Guide: www.mudspike.com/chucks-guide...
    - Official Flight Manual: www.digitalcombatsimulator.co...
  • Hry

Komentáře • 98

  • @ErikScott128
    @ErikScott128 Před 4 lety +86

    Hi, I recently found this series on reddit, and thought I'd give it a go to learn some of the systems in the Mi-8 which I haven't really bothered to learn. I like the very slow and methodical approach you take in your videos, and the effort you make to go above and beyond with your explanations.
    I'm a helicopter engineer (Well, I was. I have returned to school for my masters degree, in rotorcraft as it happens) and there are a couple things I'd like to correct. You mentioned in your intro video that you're open to comments and corrections, so I hope this isn't totally unsolicited.
    1:40 Shaft tilt is indeed used to maintain level body attitude in forward flight. However, this is as much about reducing fuselage drag as it is about crew and passenger comfort.
    4:30 The airflow through the tail rotor isn't really the reason for the translating tendency, it's the thrust itself. Granted, thrust and inflow are linked, but I'm confused as to why you use TR thrust to describe the TR countering MR torque, but then use inflow to describe translating tendency. IMO, the best way to think about this is that the tailrotor generates a thrust far aft of the CG. This both pulls the aircraft to the left and produces a moment about the CG, the latter of which counter mainrotor torque. The lateral thrust of the TR must be countered with lateral MR thrust, accomplished by tilting the disk (and thus, thrust vector) to the right.
    5:40 The vertical stabilizer on traditional single-main-rotor (SMR) helicopters doesn't do nearly as much for directional stability as the tail rotor itself does. Air coming from "below" a rotor will tend to increase its thrust at a given collective setting. Air coming from "above" will tend to decrease thrust. In this sense, the tail rotor itself acts as a vertical stabilizer.
    7:10 Not sure what you're getting at here. ETL occurs at a sufficient translational speed of the main rotor, regardless of direction and aircraft orientation. If you fly forwards and then yaw into a sideslip, you won't suddenly exit translational lift. You may slow down as a result of the increased fuselage drag and *then* exit translational lift, but it wasn't the sideslip itself that caused this. In fact, a helicopter will require less power to hover in a cross wind then it will to hover with no wind. Granted, there are other reasons not to hover in a crosswind.
    7:46 Hovering nose-into-the-wind is almost always desirable, regardless of wind speed. This is more a question of gross weight. If you have to have a headwind to hover, you probably shouldn't be hovering at zero ground speed. Fly around at your bucket speed to burn off some fuel or perform a run-on landing.
    7:52 Hovering with your tail directly into the wind is almost never a good idea unless operational requirements dictate you do so.
    8:20 These are called "quartering winds" and can sometimes be the most difficult wind orientation to hover in. While unlikely to be modeled in the sim, mainrotor-tailrotor wake interaction can be detrimental to directional stability, and available yaw rates can be greatly reduced. In extreme cases (high gross weights and/or at high density altitudes) the tailrotor may not be able to counter mainrotor torque and maintian heading. The flight manual will usually specify wind azimuths to avoid and the maximum wind speed you can expect to hover in at a given azimuth.
    9:50 The right quartering wind you describe as favorable may be so in the sim, but know that main rotor wake blown into the tailrotor can cause loss of tail rotor effectiveness (LTE). Putting the tailrotor in a descent condition (Right side flight in the case of the Mi-8) can also put the tail rotor into VRS, which will also result in LTE.
    14:00 In ground effect, rotor inflow is reduced, which increases rotor angle of attack at a given blade pitch (collective setting) increasing thrust. Put another way, if you require a certain angle of attack to maintain lift, a lower collective setting is required. This reduces induced drag, which decreases induced torque, which reduces induced power. So, in short, you are correct that ground effect reduces power required to hover.
    15:00 "Width of the rotor blades" might be confused with blade chord, rather than rotor diameter, which is what you mean and correctly describe later. The 1-rotor-diameter rule is a good rule of thumb, but you should clarify that it's not like ground effect suddenly stops at this height. It's strongest near the ground and tapers off almost exponentially with increased height. Also note that it's rotor height, not aircraft or wheel height, that determines the strength of ground effect.
    16:55 The word you're looking for is "oleo," though I don't think many people watching this video would know that word unless they work in the industry or maintain aircraft.
    18:02 Your explanation for dynamic rollover is okay, but it's better explained in that the helicopter whats to drift right but is restrained by ground contact. The lateral force of the rotor is counteracted by an opposite lateral reaction force at the landing gear contact point. This creates a moment about the aircraft CG, increasing the aircraft's roll, increasing the aircraft's transnational force, increasing the force at the landing gear, increasing the rolling moment and so on. Eventually, you will reach a point where no control available to you will be enough to right the aircraft. There is insufficient roll moment available from the rotor. The CG rotating above and beyond contact point prevents you from reducing collective to set it down, and too much roll attitude prevents you from picking it up into a hover. This is dynamic rollover. Being light on wheels makes you particularly prone to dynamic rollover (which can occur in response to a gust or some other disturbance). In real life, you would not want to remain light on wheels for very long.
    20:52: I completely agree. For this reason, I often recommend the Huey for people getting started with helicopters in DCS.
    24:30 I have found the opposite. Focus on something distant such that you have a good feel for aircraft attitude, and use your peripheral vision to track aircraft translation. Otherwise, you'll have a tendency to over-correct. This was confirmed by a helicopter instructor I flew with once. If you can hover looking at objects close to you, that's great, but I think many people have difficulty with this. A similar recommendation is made for aerial refueling; focus on the tanker, track the basket in your peripheral vision.
    28:14 This isn't where ground effect is strongest, it's just the point where the aircraft finds equilibrium at the given collective setting. Ground effect is stabilizing in the vertical axis. (Interestingly, there is such a thing as "ceiling effect" which is unstable, but never encountered by real helicopters. )
    28:27 The rotors don't have to work hard to push air. Actually, they don't have to work as hard. Power required is reduced in ground effect, that's its whole thing.
    Nitpicks and such aside, I think I'm going to like this series. If you want me to keep detailed comments coming, I'd be happy to make them. Helicopters are very confusing and there's a lot of misinformation out there, and I do what I can to correct it when I see it.

    • @kvan27
      @kvan27 Před 3 lety +10

      @ErikScott Really good info here. I am a helicopter pilot. Usually we’re cussing out the engineers lol. Sounds like not all you guys are bad haha👍🏼

    • @shaheen-1
      @shaheen-1 Před 3 lety +1

      good stuff!

    • @Welther47
      @Welther47 Před 3 lety

      You should inform the developers about this stuff.

    • @philipmartin708
      @philipmartin708 Před 3 lety

      Thank you for all that. You're excellent at explaining such things. You should be a helicopter school ground school instructor.

    • @facethefaceandmore44
      @facethefaceandmore44 Před 2 lety

      18:02 did you mean to say that the helicopter wants to drift LEFT but is restrained by ground contact? (to port)

  • @fh4635
    @fh4635 Před 3 lety +23

    Congratulations on being mentioned and linked in Matt Wagner's "Mi-24P Hind | Hover, Taxi, and Takeoff" video! One of the greatest of achievements one can aspire for in a virtual life :-).

  • @fastfiddler1625
    @fastfiddler1625 Před 2 lety +2

    After many moons of fighting myself, I finally caved and turned on "rudder trim" in the helicopter settings. Makes life so much easier. I don't like using a crutch like that, but until I can justify spending DOUBLE what I spent on my VKB Gladiator (which I love) on a piece of metal that does one thing, this will do.

  • @nooneno12
    @nooneno12 Před 3 lety +5

    Found your vid, from the DCS Hind promo by Wags. Wish I had seen this a long time ago, Thank you!

  • @CakePrincessCelestia
    @CakePrincessCelestia Před 4 lety +17

    Now that's what I'd call a proper tutorial especially since the interwebz kinda lacked those on the Mi-8 before yours appeared. Also, anyone anticipating the upcoming Mi-24P should get the Mi-8 and follow through this series.

  • @gregorypruitt5068
    @gregorypruitt5068 Před 3 lety +4

    Best tutorial on getting the Mi8 off the ground without tipping the machine over. I finally understand this module. Thanks!

  • @Mightymoose02
    @Mightymoose02 Před rokem +2

    I have flown large RC helicopters for several years and same with sims. Still found your tutorial both informative and well structured. Highly recommended!

    • @vsTerminus
      @vsTerminus  Před rokem

      I only have a micro rc heli but I find it a lot more challenging than sims, probably because keeping myself and my controls oriented when I'm not physically inside the machine is hard. What size rcs do you fly?

    • @Mightymoose02
      @Mightymoose02 Před rokem

      @@vsTerminus It was 700 size electric 3D helicopters, stopped due to the high cost (crashing 😁). Sim is cheaper and just as fun in a different way.

    • @Mightymoose02
      @Mightymoose02 Před rokem

      @@vsTerminus It was 700 size electric 3D helicopters, stopped due to the high cost (crashing…). Sim is cheaper and just as fun in a different way.

  • @HeliShed
    @HeliShed Před rokem +3

    A bit late to the party here but, 'Awesome - great tutorial' - congratulations indeed and thank you.

  • @foobar201
    @foobar201 Před rokem +2

    On the left side of the doppler radar hover thingy there's a small white triangle in a banana shaped slot, that's a copy of the VVI. Very useful so you can concentrate on a single instrument.

  • @Mandoracer
    @Mandoracer Před 3 lety +5

    So happy I found you're tutorials literally the best hip tutorials on CZcams not only do you show how you do things but the reasons why. Thank you

  • @ammarjari4214
    @ammarjari4214 Před 3 lety +9

    the most helpful mi 8 tutorial ever seen.

  • @slundal
    @slundal Před 3 lety +3

    This is some of the best tutorials I've seen on anything DCS related. Good Job!

  • @bobjackson3307
    @bobjackson3307 Před rokem +1

    Just came upon your video. Super video!. Later today going to review every one of them for the Mi-8 Tutorial for a start. Old CFS 1,2,3, Il-2 1946 I'm the Last of the FA_Fallen Angles Squad members. for all the IL-2 Years been flying under this name: FA_ZODIAC

  • @facethefaceandmore44
    @facethefaceandmore44 Před 2 lety +6

    The reason why pilots pick a spot on the horizon rather than look directly at a close spot on the ground is that it allows the peripheral vision to kick in getting an overall picture of the attitude of the helicopter by being aware of the horizon. It is less pronounced in DCS where the monitor or VR headset produces a narrower field of view, but can still be useful in calming the oscillations by not chasing that little spot on the ground.

  • @uGBU13
    @uGBU13 Před 3 lety +2

    Thank you for your videos, I have a very long way to go but thanks to your step by step approach I managed to actually hover rather than bounce all over the place.

  • @frogisis
    @frogisis Před 3 lety +2

    Great video, this is really going to help with the Hind.
    Also great choice of an Erusean machine-DCS should have you transporting more princesses.

  • @PizzicatoUK
    @PizzicatoUK Před 4 lety +7

    This series is fantastic, and it's very obviously taken a huge amount of research and planning. Thanks for taking the time to pull all of this together.
    Can't wait to see the Hind edition...;)

  • @jeremy41234
    @jeremy41234 Před 3 lety +7

    This is some really great information! I professionally and I have to say I find it very hard to believe you have never flown in real life. Great stuff, I’m looking forward to flying this thing well and your videos have been awesome!! 👏👏👏

  • @AdmiralQuality
    @AdmiralQuality Před 3 lety +3

    These are excellent, looking forward to watching the rest.
    Just one thing. The rotor doesn't work harder in ground effect. It's more *effective*, but power output doesn't increase.

  • @CaptainBuzzBee
    @CaptainBuzzBee Před 3 lety +3

    Another good tutorial. Good tip regarding the trim and spring centered joysticks.

  • @Pekins
    @Pekins Před 3 lety +7

    I came to the conclusion that Helicopters are hard without good rudder pedals, you can get away with bad rudder pedals in the jets.

    • @vsTerminus
      @vsTerminus  Před 3 lety +11

      Yea, absolutely. Helicopters rely a lot more on the pedal inputs than jets do. You can fly with a twist axis if you're determined but I definitely recommend pedals if you're gonna spend a lot of time in a whirlybird.

  • @sigvar6795
    @sigvar6795 Před 4 lety +2

    I have been simulating since my 20s My first was Sub logic flight sim for the apple series of computers.
    There have been a few sims that captured the feeling of weight in an aircraft which improves the realism so much.
    Flying has to be as much about feeling the craft you are in as knowing the physics.
    I am just returning to flight sims and though I am comfortable enough with flying rotary wing craft your videos are very well done. and hugely helpful! Thank you for making them.
    I just bought this aircraft and the oilfields campaign. I wish there were more of a selection of civil aviation scenarios and craft. Fire fighting aircraft perhaps doing water bombing. I know simulating thermals over a fire would be horrendous but what a cool sim. Thanks again.

  • @khovuwamathenge9877
    @khovuwamathenge9877 Před 3 lety +2

    How you segment the videos is great...awesome content as well

  • @Ferpe2
    @Ferpe2 Před 4 lety +2

    Very good video, calm, methodical, and just the right detail level. Thanks!

  • @shadowfax9861
    @shadowfax9861 Před 3 lety +2

    Outstanding, professional video. Thx.

  • @timbrwolf1121
    @timbrwolf1121 Před 2 lety +2

    I'm new to dcs but I noticed this in both of your hip videos that I have watched. The doppler gauge does have a back light. Its the knob directly behind the pilot navigators head. I'm new and saw it on another video so I thought I would share it. You didn't point it out during the cold start either.

  • @likelike344
    @likelike344 Před 3 lety +1

    Your videos have been just recommended on official Wags channel (check DCS: Mi-24 Taxi, Hover and Take off video)

  • @johnpeters5906
    @johnpeters5906 Před 3 lety +1

    Thank you so much, I learned a lot. Its now a mather of practisch a lot. But with your explenation you knowing how you can correcting yourself, THANKS !!

  • @cerpogaming6746
    @cerpogaming6746 Před 4 lety +2

    Very interesting and well explained ! Congrats.

  • @simonedmunds8732
    @simonedmunds8732 Před 3 lety +2

    Very helpful guide 👍

  • @fortinero3361
    @fortinero3361 Před 3 lety +1

    Outstanding tutorial

  • @TheLooney1976
    @TheLooney1976 Před 4 lety +3

    The Doppler system also has a VVI and it's much more sensitive then the normal steam gauge VVI. it's to the left of the crosshair, regretfully a little hard to see but it makes life a lot easier in less visibilty or at night.

    • @vsTerminus
      @vsTerminus  Před 4 lety +1

      I *always* forget about it, partly because like you say it's hard to see. But yea, it's there and it's better.

    • @ImpendingJoker
      @ImpendingJoker Před 4 lety +2

      I've been working on helicopters and other aircraft for over 20 years, and I've never heard a Vertical Speed Indicator(VSI) referred to as a VVI.

    • @vsTerminus
      @vsTerminus  Před 4 lety +1

      @@ImpendingJoker Interesting! It's listed in the manual as the "CR-30MK Vertical Velocity Indicator" so that's what I've always gone with.
      I suppose it makes sense because it's giving you a magnitude (speed in m/s) and a direction (up or down), but I guess you could interpret the direction as positive or negative speed and then it's just giving you speed without a direction.
      That's interesting, thanks for sharing!

  • @ereztison
    @ereztison Před 3 lety +2

    Thanks a lot man, great videos!

  • @Power5
    @Power5 Před 2 lety +1

    great tutorial.

  • @prichardgs
    @prichardgs Před 3 lety +2

    Well done, well done! You get a subscribe

  • @jean-michelguiet6081
    @jean-michelguiet6081 Před 3 lety +1

    Great pedagogic teatcher !

  • @hmleao
    @hmleao Před rokem

    Many already said this, but I'll add to the pile: your videos are excellent. I'd like to understand something. Why when the helo is "heavy on wheels" is necessary to give left rudder pedal and "light on wheels" right rudder pedal? I understand that right rudder is necessary because of the direction the main rotor spins, but what bugs my head a little bit is why it turns right with little collective.

  • @peterwassmuth4014
    @peterwassmuth4014 Před 4 lety +2

    ThX very much! Just bought her 10 min ago
    I hope Warthog and Thrustmaster TPR Pedal will do the job
    and extra buttons for her with Ferrari Wheel ;)
    Can you direct me to a good video how to set up
    her properly with warthog buttons etc, etc ?
    ThX in advance. And ThX for your excellent
    tutorial.

    • @davefloyd9443
      @davefloyd9443 Před 4 lety

      Good decision. Stalin bus is the best helo........I'm trying to learn the "her" too. I have a cobbled together hotas as well using Logitech G27 racing wheel pedals for rudders, the wheel part sits upside down, unused, on top of my pc cos the pedals connect through the wheel to the pc. Struggling with finessing the cyclic as the joystick wants to centre after every input.
      Join here, ask questions, have fun & go far:
      tacticaldcs.com/

  • @vasilisroukis1108
    @vasilisroukis1108 Před 3 lety +1

    you rock!

  • @josvanberlo2644
    @josvanberlo2644 Před 2 lety

    Vs Terminus, could you please reveal your cyclic and collective settings and the curviture that belongs to the pitch roll yaw and collective settings!? I really like your tutorials! Great to follow and understand. Regards! Jos.

    • @vsTerminus
      @vsTerminus  Před 2 lety +1

      All zero :) I don't use any curves or axis adjustments at all anymore.
      When I started learning I used a +15 curve on cyclic pitch and cyclic roll but eventually found I didn't need them anymore.

    • @josvanberlo2644
      @josvanberlo2644 Před 2 lety

      @@vsTerminus Thanks for the response!!! I'm afraid my inputs are too big at the moment, because it is very hard for me to get it into a steady hover. Most of the time even not possible. I use a thrustmaster Tflight hotas. No rudder pedals but the tumble switch on the throttle/collective... But I also need more practice. Seeing you go into a hover looks so easy, but I can't reproduce it yet!!!

    • @vsTerminus
      @vsTerminus  Před 2 lety +1

      That's very common! It took me a while to learn to make smaller inputs. You should try those +15 curves and see it if helps. Also remember to trim and use that autopilot center channel.
      Oh and try defueling your helicopter to about 60% or so. You don't need 100% fuel and it will make hovering a little easier as you're not so heavy.
      Keep at it, you'll get there!

  • @energiam880
    @energiam880 Před 3 lety

    by far the most comprehensive video on the topic!
    Btw, is it normal to use full engine throttle all the time? By engine throttle, i mean the two levers that can be adjusted to three positions, idle, minimum and emergency.
    I find the hip a bit sluggish/underpowered vertically in the middle throttle position. Whereas the max power setting feels much more capable, and less vulnerable to generator failure

  • @craigmoran893
    @craigmoran893 Před 3 lety

    Bloody Hell, I was trying to take off with the brakes on!!!

  • @flex5002
    @flex5002 Před 3 lety

    Most difficult maneuver is how to stop quickly in a air from angle attack, get balanced straight hoover on target, where is helicopters rotor disc hand control for level it out?

  • @CrazyRussianPilot
    @CrazyRussianPilot Před 2 lety

    👍👍👍👍👍👍

  • @anonymoushuman3575
    @anonymoushuman3575 Před 4 měsíci

    Do you use any control axis curve or tuning for better control?

  • @McSniffle
    @McSniffle Před 4 lety +1

    Whenever i try to hover, there's definitely multiple sections of attempts where the helo starts doing that rattling and vibration. Any idea what causes that stress?

    • @CakePrincessCelestia
      @CakePrincessCelestia Před 4 lety +2

      I think that's where the ETL kicks in or vanishes, so basically somewhere around 16-24kts. Nothing to worry about, but certainly an indicator to check your vertical rate, because that's where you might be within a VRS just a brief moment later on when decelerating.

  • @DruidicMender
    @DruidicMender Před 3 lety +1

    It's a little struggle for me. I can hover sure but I use a TM Warthog with no extensions. Are there any axis settings one could use to mimic perhaps the real Mi-8MTV? My hover results in more or less a dance.

    • @vsTerminus
      @vsTerminus  Před 3 lety +1

      You're in a tough spot, that's not an easy stick to work with for helos.
      Two things you can try:
      1. Set X and Y axis curves of about +15. Use that as your starting point and adjust as necessary.
      2. Don't trim for takeoff, just pull some aft stick and hold it. You'll be limited by arm fatigue, but you won't have to fight the center detent and will be able to make small movements more precisely.
      Personally I would look into an extension, or moving to a Virpil base (since they are compatible with your grip already)

  • @rubensosabetancor687
    @rubensosabetancor687 Před 3 lety

    Hi gentleman
    could you please let me know which airfield is that?
    Amazing footage good content

    • @rudelchw
      @rudelchw Před 3 lety +1

      Looks like one of Normandy's airfields, but not sure which.

  • @rafaelaldana1503
    @rafaelaldana1503 Před 4 lety

    👍

  • @longriflem14
    @longriflem14 Před 4 lety

    Terminus- videos are outstanding best on HIP ever. I have 2 questions
    How do you arrest your descent rate I hear you talk about here and landing.as well as others, keeping if under 3. But how are we doing this?? I have been told too you have t" catch it"I can keep it like at 2 nice and easy and steady somewhat. and then boom crash.
    And second ? What are your control settings. I am 0,100,100 and zero. Because I've got cussed at all up and down the forums and discord. Asking this. I have a Warthog on a 20cm extension. But I am all over the place like the Gazelle. I have probably over 150 hours in this. And still cannot hover or get into hover on landing.

    • @vsTerminus
      @vsTerminus  Před 4 lety

      1. Manage your altitude with the Collective. Add collective to either climb or slow your rate of descent. Reduce collective to either descend or reduce your rate of climb.
      2. I use default settings, no curves, no saturation changes. With my X-56 I have roughly a 5% deadzone because of slop around the center. It should actually be more like 8-10% now I think. That will depend on your hardware.
      3. Transitioning into hover when landing is one of the most challenging things because so much happens all at once. You can slow time in the game and practice in slow mo, it might help you a bit. Here are the steps, in order, that you'll need to get into a hover:
      - Aft cyclic to reduce your airspeed => This will also cause you to climb
      - Reduce collective to eliminate the climb and hold a steady altitude or even descend a bit
      - As you reduce that collective you will need less right anti-torque pedal input
      - When you slow to about 30kph and the helicopter starts shaking and buffeting, add collective. Do it *before* you start descending faster.
      - Now is a good time to reduce your aft cyclic to bring the nose back down and get ready to move into a hover => This will also cause you to descend
      - Add more collective to keep your altitude
      Finally, adjust your *speed* with the *cyclic*, and adjust your *altitude* with the *collective*. Watch your vertical velocity indicator and try to keep yourself within +/-2 m/s climb or descent throughout the entire maneuver.
      Good luck!
      (I do plan on making a "basic helicopter flight controls" video at some point which might help with this)

  • @dart_q8
    @dart_q8 Před 3 lety

    Hi, hind is released make videos on hind please , take off/landing tutorials & hover in all weather conditions.

  • @colinboyd9121
    @colinboyd9121 Před 4 lety

    Surely it makes more sense to have the tail rotor on the right to counteract clockwise torque? You said the export Mi-8 puts it on the left - weird.

    • @ImpendingJoker
      @ImpendingJoker Před 4 lety +1

      This is not always the case. The reason for the change is due to tail rotor blanking where the vertical stabilizer reduces the thrust by being in the way, these are often called, tractor configuration where the tail rotor thrust "pulls" the tail to counter act torque. When placed on the other side of the vertical stab, in this case the left, it is now in a pusher configuration, and this all but eliminates blanking by the vertical stab. This change is seen in the Bell 205 on export and civilian versions as the effect was better understood, but it would have too costly to convert the ones in the US Army so they just left them. Most helicopters today in a conventional configuration use a pusher tail rotor for better tail rotor authority in all phases of flight. Another way to reduce this blanking can be seen on many surplus UH-1Hs where they have a mod called a Fast-Fin. This has a portion of the trailing edge of the vertical stab removed to reduce the amount of blanking caused by the helicopter having a tractor tail rotor, though this is sometimes seen in pushers as well because it creates less drag. Another phenomena that has been studied, is dissimilar airflow over the tail boom. As the retreating blades move towards the tail boom they create a faster airflow down one side, thus reducing static pressure and creating a certain amount of lift to that side, which in turn pulls the tail boom to that side. This has been eliminated in a lot of older helicopters and included from the outset in new helicopters by fins running down the tail boom, call strakes. These act as spoilers and keep the air from moving down the sides of the tail boom and keep the differential pressure difference to a minimum. In case you can't tell, I've been around helicopters for a very long time in real life.

  • @khovuwamathenge9877
    @khovuwamathenge9877 Před 3 lety +1

    What material helped you to understand working of helicopters...i find the dcs PDFs are not sufficient

    • @vsTerminus
      @vsTerminus  Před 3 lety

      Unfortunately this is not an easy question to answer in the confines of a comment, but I'll try.
      The Mi-8 manual has some good diagrams, but you're right that it's not always the best place to get an understanding of more general concepts.
      For that I've frequently turned to materials made available by the FAA and by Transport Canada. Sometimes Wikipedia has articles that are helpful, and other times I find myself just reading through posts on various aviation forums because someone has a way of explaining things that just clicks for me.*
      * Be careful with that last one, it's also a good way to get a lot of bad information. If it doesn't jive with what you're reading from more official sources it's probably sus.
      The key point here is to not rely on any one single source, but to find as many explanations as you can and then look at what is common across all of the explanations.
      Also you need to consider - especially with the Mi-8 - that most of the material you find online will be for Wester, counter-clockwise rotating helicopters and a lot of what they write will be backwards. The diagrams too. It's an added layer of challenge for us English-speaking Westerners to find good information on Eastern helicopters.
      Sometimes I have to see things to understand them, and CZcams can help with that. For example, understanding how the gyro-based turn indicator works was something I had to see for myself and sure enough CZcams has some great videos of it where they demonstrate how forces act on it and how it responds.
      The hardest part for me was when I would notice something that I couldn't explain and to figure out what was causing it. It's easy when you just want to look up concepts, but tracing behaviors back to concepts was hard.
      Anyway, good luck! It's a rabit hole and several times it has left me wishing I could afford to just take lessons and get some formal education instead.

  • @AndrewH428
    @AndrewH428 Před 3 lety

    A question, you seem to have your throttle at half for this entire video, and I'm not sure if I missed you talking about it or what, but is that your recommended level for hover? In general?

    • @vsTerminus
      @vsTerminus  Před 3 lety +1

      So the throttle ("corrector") should be full-right all the time and the governor will handle managing the engine RPM.
      Your collective will depend very much on how heavy you are and what the wind is like. For example, on a windy day with no payload and low fuel you could lift off with just two degrees of collective. While loaded heavy with no wind you might need 10 degrees to take off. "Normal" is probably somewhere in the 5-7 degrees range, but you shouldn't be looking for a specific number every flight.

  • @manchiviri
    @manchiviri Před 3 lety +1

    Don´t use the doppler gauge. Use your pilot skill to mantain the hovering steady.

  • @kvan27
    @kvan27 Před 3 lety +1

    Hey Terminus, helicopter pilot here. Really enjoy your videos on these complex DCS aircraft. I noticed you keep calling the gauge the “VVI” (Vertical Velocity Indicator) the actual name for it is “VSI” (Vertical Speed Indicator) just a clerical thing I noticed. Also the VSI is measured in feet in just about every country besides China, Russia, and Korea contrary to the metric system. Each tick on the VSI is a hundred foot gain or loss, not meters. And I’m stressing that because a meter is around 3 feet I believe (correct me if I am wrong) whereas 100 feet is somewhere near 30 meters. A meter or 2 meter decent is negligible and wouldn’t be even considered gaining or losing altitude. Otherwise, seems like you did a good bit of research and understand heli dynamics fairly well and do a good job explaining them. Keep up the good content!

    • @vsTerminus
      @vsTerminus  Před 3 lety +1

      Hey Kyle, thank you for the comment! I'm always very surprised to find out that real world pilots are getting something out of my videos and enjoying them. It's really encouraging, so thank you.
      Regarding why I call it a VVI, the manual refers to it by both names depending which page you are looking at. I saw VVI first and it made sense to me (because you're getting both a magnitude and a direction, thus a vector) so I stuck with VVI. My understanding is that either name is generally accepted, or at least that's what Google tells me.
      I am aware that normally a VSI is measured in feet per minute, however again looking at the Belsimtek manual (Section 5.4.4 on page 97) "It displays the helicopter’s rate of ascent/descent in a range of ±30 meters per second (m/s) on a scale graduated to 1 m/s." Keeping in mind this is *per second*, so 2m/s actually translates to almost 400 feet per minute.
      Without having any formal classroom training I am limited to the information I can find on the Internet and help from people like you, but the fact that I am able to recreate the majority of it and it behaves almost exactly like my research says it should is definitely a testament to the work by the team at Belsimtek. I have really high hopes for the Mi-24P they are working on now.
      I've got more content in the works, I hope to see you in the comments again in the future! Have a good one

    • @kvan27
      @kvan27 Před 3 lety +1

      @@vsTerminus Ahh that's interesting that it says meters per second. I could be wrong. I am a pilot in America and we're generally taught the majority of the world goes by feet per second. That also pertains to non-North American helicopters as well with clockwise rotor systems. But again it is a Russian model and that could be correct for a Russin built aircraft.

  • @dog_house875
    @dog_house875 Před 4 lety

    How did you get the English cockpit

    • @lucasjeandidier4046
      @lucasjeandidier4046 Před 3 lety

      I think you need to go to the dcs menu=>module=>mi8=>options and then you should have a "cockpit language" somewhere

    • @rudelchw
      @rudelchw Před 3 lety

      He is using a modded cockpit "Mi-8 Black English Cockpit by Devrim" link on the video description.

  • @hansloyalitat9774
    @hansloyalitat9774 Před 2 lety

    my helicopter always moves no matter what cant hover at all

  • @wahdansalem4277
    @wahdansalem4277 Před 3 lety

    What’s the name of this game please?! Thanks in advance

    • @vsTerminus
      @vsTerminus  Před 3 lety

      DCS

    • @wahdansalem4277
      @wahdansalem4277 Před 3 lety

      @@vsTerminus can I play it without a joystick?!

    • @vsTerminus
      @vsTerminus  Před 3 lety +1

      Yes, but I don't recommend it long term. You can play with mouse and keyboard or with a controller but you will find it quite challenging without a joystick.

    • @wahdansalem4277
      @wahdansalem4277 Před 3 lety +1

      @@vsTerminus thanks a lot for replying

  • @craigmoran893
    @craigmoran893 Před 3 lety

    Ha! That's why she wants to lay on her left side.

  • @horstweihrauch1
    @horstweihrauch1 Před 2 lety

    I skipped to @21:24 :]

  • @nekonekolen
    @nekonekolen Před 3 lety

    Just me or is that a Erusia skin?

    • @vsTerminus
      @vsTerminus  Před 3 lety

      It is! The link is in the description if you want to download it.

    • @nekonekolen
      @nekonekolen Před 3 lety

      @@vsTerminus it was dead link when i tried

    • @vsTerminus
      @vsTerminus  Před 3 lety

      @@nekonekolen Oh no! Looks like it got removed :( I had no idea, thanks for telling me.
      I've re-hosted it for you on GDrive, I'll have to go update my video descriptions later.
      drive.google.com/file/d/1-x2M7zrF8eFtHsU95IPsb6mmMUKg6JTL/view?usp=sharing

  • @williamw6827
    @williamw6827 Před 2 lety

    Very informative..Thx..But not in the MI-8s native language of Russian...ha ha