"Today we're gonna talk about why your landings aren't so good". That surely baited me into seeing the video. Glad it did because the information is gold. Great work.
My understanding of the forces on the airframe: Requested lift leads to needing higher AOA of the rotor (that's what you're directly controlling). Higher AOA leads to the rotor having more wind resistance and "working harder". This leads to the rotors slowing down. Slowing down is bad, because that means less lift, so the engine works harder. This leads to higher rotor RPM and higher engine RPM, which exerts force as torgue on all parts of the system (engine, transmission, shafts, etc). Added torgue needs to be counteracted by the tail rotor, which uses energy in the system (and thus, even more of max torgue). Pilots can influence the system by: - collective - anti-torgue pedal (more anti-torgue = more max torgue used. This can actually be used to help on take-offs by reducing torgue pedal, freeing up max torgue %). - throttle. Used to always stay at 100% RPM. Most likely, this is automatic. - speed over the rotors (airspeed +/- wind speed. You can actually be in ETL without any groundspeed due to wind). Is this correct? Did I miss something?
One notable addition would be that usually helicopter is powered by a turboshaft engine working at extremely high (engine) RPM, and (engine) RPM% change implies increase in thousands RPM. And considering the rotating thingies are heavy and have a lot of inertia, this can't be done very fast, meaning a few second lag in set engine RPM and actual RPM. In turn, meaning a spike in power requirement would mean a guaranteed RPM drop. So not helicoptering the thing into conditions with those spiking requirements will be good.
That was a really nice setup for the "ah-hah!" moment at 15:15 with the line through the different torque requirements. Great visual. I may or may not borrow some ideas from it :)
@@CasmoTV can you make a video showing the correct way a helo climbs and reaches the ceiling? I just started with KA-50 never flown higher than 2k m.Tx.
Love a good Principles of Flight lesson :P great vid Casmo - covering critical basics and we can push it out to new guys coming into the Squadrons and groups to help them improve their flying :)
Pedal coordination through all of this paramount. Especially keeping your pedal inputs ahead of the nose swing. Your feet need to move with your collective inputs. Don’t wait for it to start swinging. This was one of the challenges I had in flight training. I would change pitch but would wouldn’t change pedal inputs until I saw the aircraft doing something. Once I learned to get ahead of the aircraft, landings and quick stops got a lot smoother.
As someone who recently started flying the apache, I cannot fully express my gratitude in Casmo's tutorials, they really helped me a lot in understanding and improving whats at play. I can now take off, and my landings have improved a lot!
Either you can start with a bunch of hours as a fixed wing like me, and then be so confused that you have to become and Arma rotor head, spend a hundred some hours there, and then mess with the Blackhawk…. Oooooor You could watch this video
This is my rotor. There are many others like it, but this one is mine. My rotor is my best friend. It is my life. I must master it as I must master my life. Without me, my rotor is useless. Without my rotor, I am useless. Can't wait for more.
I can't seem to find it anymore but, I remember in flight school reading straight from the FAA Helicopter Flying Handbook the sentence, "rotor RPM is life." Most accurate and easy thing to understand in the whole book, haha.
As someone who frequently uses the Mi-8 while playing DCS, this is a wonderful watch to gain some theoretical knowledge behind the practical experience.
Reminds me of Wags: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rgNdeeu8ApA.html Jörgen Toll: I wanted to see Wags land that contraption without ending up in a VRS induced heap of smoldering ashes... ;) Matt Wagner: There is a reason I ended the video when I did ;) And since you're flying the Mi-8, if you haven't already, check out this great tutorial series as well: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SXoS2N3M5Mw.html
@@CakePrincessCelestia I'm very much aware of Terminus' series and watch some of his videos with joy, although I am beyond needing the tutorials to learn how to fly it :>. Good catch on the Wags stuff!
I have a lot more problems with VRS in the Hip, maybe because it's a much heavier helicopter than the Huey. But well the lead developer for the Mi-8 flew it for the Russian Army so how off can it be eh.
I think I am pretty reasonable at landings in the Huey and Gazelle, but I didn't realise why until this video popped up. Thanks. Also, I seem to recall some ex-vietnam vet telling me that those fast landings that you see on films were not the norm, and they were taught to touch down at no more than walking pace under any circumstances...not sure of the validity of that, but seems legit.
Great video. I hope you continue along this line of teaching. I also wanted to note the great illustrations. I thought I was watching a Bob Ross painting. The way you crafted those airframes, I think you may have a future in graphic design. Seriously, thanks for the video.
One of the biggest things I think that have helped me a lot in the last year or so has been just slowing down. Taking more time than I think I need to land, start slowing down and setting up earlier. Stop throwing the helo around like a fucking doggy chew toy. Once I got more consistent while going slower then I start speeding my actions back up again. Doing so let me learn the movements much more smoothly, it would probably help some folks to use the dcs function for slowing down time as well. Walk yourself thru the action at a nice easy pace before trying to do insane drops where you try to go from full speed to skids on dirt in 2 seconds.
At the very beginning, It's like you *really* know me! :) Love seeing the Bottom Line Up Front theory of military writing. There was also "no paragraph should be longer than a thumb" but you'd look silly putting your and on the monitor these days. LOL. But seriously, the BLUF style of writing has served me well in the corporate world. It's amazing how many words are wasted and how non-succinct most emails are.
I've been looking for analogies on how I should think about rotary-airfoil (helicoptor) control, especially during landing, but also because, as a non-pilot who plays sims (XPlane,DCS) and flies helicopters in them, I can see that what real helicopter pilots say about the real thing is definitely something I'm feeling when I try to fly helis: 1. Sometimes my helicopter seems to want to beat itself to death. 2. The hover button is elusive. 3. If hovering is still hard, landing is gonna be even harder. Luckily I'm just doing this for fun, and so even when my on screen aircraft is destroyed, I just get up and have a beverage and try again when the helmet fire is out.
"Hey guys, I'm Casmo and today we're gonna talk about why your landings aren't so good!" - Best intro for this, cheers! I'm glad though that I've watched at least some of vsTerminus's tutorials already - and that I'm flying in VR which makes them a lot better. 0:45 Are you by chance watching JayzTwoCents? That channel has exactly the same stumbling-across-words-edits, and I love them! :D 4:59 And then the Huey is redlining at just 50%... 14:17 "beat the air into submission" - that's what these things do :) 14:45 Sikorsky S-66 entered the chat and tilts its tail rotor by 90° to turn it into a pusher prop. 27:29 GITSUUUUUUUM! :D
I remember my first few flights with the black shark and man it was eye opening... You have to be slow and gentle, small corrections, constant cross checking gauges, just a hand full at first...... much different than the ol' a-10 :)
Greatly explained! The most common mistake I see in Huey videos is that people fly it like it had a FBW control system and all they get is a swinging aircraft. But the Huey and probably other large helicopters of that time have a hydraulic/mechanic control system that needs its time to follow the cyclic. Therefore every fast movement is only swinging the aircraft around. Slow and anticipating control inputs is key in the Huey and the relaxter the movements are the preciser and better is the landing.
I do suck at landings it's why I'm here to learn from a professional it's why your videos invaluable. Keep up the good work on the channel. I can see when the ah-64 comes to DCS there's going to be a great deal of Internet looking for this type of knowledge 👌
Great vid. I love these lessons. ;) Especially because,. fixed or rotary, I'm a bloody awful pilot! Oh and I see you've moved from your frankenT16000M to a Gunfighter with the extension. It's great isn't it? Have you tried the clutches yet? If not, and you want to keep the springs in, it I'd recommend a teensy bit of Nyogel 767A on tightened clutches, gives a lovely damped feel, or at least it does to me anyway. ;)
What a fantastic video, explains some things in the UH-60L. I cruise at around 61% to 65% TRQ in level flight, and now I know why all of a sudden when I get lower and lower, my sink rate increase dramatically Thanks Casmo
Thanks for this info Casmo I understood it all went and tried and my landings went from crap, splat, drat to the most controlled I've ever had it at. Still need to practice but it's great now I'm practicing the right things with the right info.
you are literally the only channel on youtube i subscribed AND clicked on the bell! just cant wait for new videos! keep the good work up :) excited for new apache videos
I really surprised myself the first time I auto-rotated a DCS chopper after I was messing around on the keyboard trying to find a keybind and turned off the aircraft.
Thanks casmo learned a lot from this. I fly the mi8 mainly which teaches you fairly quickly not to yank the collective as you lose the generators. Still find landings quite tough but will put this into practice 👍
Thanks for this free lesson. My question is, for example in KA-50, do you manage the yellow throttle levers basically to get "ahead" of losing torque, such as in landing when you pull collective the engine is going to lose some? Do you pull the levers up a bit just before raising the collective or how?
I don't mean this to sound insulting in case it comes off as insulting at all. You sound a hell of a lot younger than you are. Back when you were still flying for the army, did you ever have problems of people not believing you were who you said you were over the radio since you presumably sounded even younger back then?
This video would save close to a 100 DCS helicopters had I seen it sooner. I've always had trouble with the descent so thanks for explaining this in so much detail. I have a question about autorotation though - does the rotor spin in the opposite direction when gravity pulls you down?
So here's a Q for you Casmo, Doing a bit of research, found that the Huey we have in DCS is modeled after the AB-212, which uses a P&W PT6T, which would technically make the huey we have a UH1N (as it is a twin, it uses two PT6A's to form a "twin-pac") not a UH1H (which uses a Lycoming T53). Do you think the Huey is over performing? I've seen some *wild* shit from some of the dudes who mainly fly just the huey. Some of the charts are a bit off from what I've seen in game as well. Also, is the "Mast bump" over modeled? Seems like it would definitely take damage from doing something like that, but would it instantly snap like it does?
I enjoyed the lecture. I don't know much about helicopters, but the bit about the engine's power band and the rotor's modus operandi seems similar to the mixture control and propeller pitch used by the old warbirds.
Graphs are useless if you don't explain what we see on the x-axis and what's on the y-axis. Also, in the beginning (first graph) you speak about RPM but then all of a sudden speak about "percentage of torque" multiple times while you meant to say "percentage of RPM"? Very confusing to me
Thanks for the video, but how can you differentiate between riding the shudder vs a vortex state ring. And how can you avoid a VSR while descending / hovering? So how relates a VSR to your descend rate / Torque and RPM.
Came for the video, stayed for the aerodynamics review! :D Hopefully one day I'll be watching Torque % but, I only have experience with manifold pressure (reciprocating engines) R22 for the time being. Can you do a video on how to know the difference and conditions between the rumble vs. VRS (Vortex Ring State) or Settling with Power. I'm interested in your way of explaining it. Thanks again for the entertaining and now educational videos!
This is hands down the most informative info and probably most helpful to every new rotor pilot on DCS. It all makes sense now. Going to see if I can apply it.
As a former 68D/15D Drivetrain Technician, I spent day in and day out doing M/R & T/R track and balances. The Huey was the toughest the Blackhawk was the easiest. I never did an Apache or 58D but I did do a bunch of 58Cs, and they are about the same as the Huey. I did the most on the Huey though(Sinai MFO 99-00).
