Vuichard Recovery Vortex Ring State in the Cabri G2

Hey, it's Kenny with helicopter Highland Ground school going out with Chris Hauser today in the cabaret G2 and we're going to go out and shoot some video for helicopter Airland Ground school. What we're going to do is go out and Hauser is going to demo for us the traditional method for recovering from a vortex ring state selling with power. And he's also going to do this. He's going to do the standard method first and then do the Richard recovery and just give you some insight on both how it looks and feels in the cabry.

Hey, we're going to get right back to that in flight video real quick. But first, Helicopter checkride and top 10 checkride tips. Both Amazon number one best sellers. I have PDFs below in the description box. You can click them, download them, check them out. No cost. It's a PDF. Just wanted to let you know those are down below. So let's go back and do some flying with Hauser and see how it comes out.

All right, so we're heading out today to do standard recovery and Bouchard recovery for vortex ring state slang with power. I'm gonna let Chris Hauser take over here in just a second. But I just wanted to mention Chris is one of our helicopter only ground school guest instructors. We did Chris and I did his ratings many years ago. He's been out teaching quite some time and he's getting ready to move on with his career. But right now he's teaching in the Cabaret among doing some charter work and other things. So when you're ready Chris, just kind of talk us through. You did intro this actually for me one time already and I really liked how you kind of explained everything on the old method versus the Richard method. So just in your own words, just kind of talk me through what you've observed and how you're teaching it now and your thoughts on the subject.

So we're going to fly out here, we're going to climb up to about 1800ft which gives us about 1000ft of playing room there. And what we're going to do is we're going to set up an out of ground effect hover at 1800ft which is about thousand feet AGL in the state of Indiana here if you have and we're going to demonstrate get into out of ground effect and then demonstrate a vortex ring state. As you know the U.S. used to. You kind of use vortex ring state and settlement power as interchangeably. But now we have, the US has now decided that we are going to Name it vortex ring state which will match the rest of the world. When I was doing my training there was really only one, which is what we call the traditional method. We're in out of ground effect hover. We get into vortex ring state, which we know is you got to be less than ETL. You've got to have 20 to 100% available power and you've got to have a descent rate of 300 foot descent or greater. Well, I was always taught that if you have to have all three in order to get in that, well, if you take away one then you're no longer in it. So the easiest one to take away is to build airspeed. So obviously if you're in an out of ground effect cover, you have no airspeed. All you gotta do is push that cyclic forward, build some airspeed and now you're getting out of it. Once you have a positive rate of airspeed there, then start adding collective and off you go. Here recently, within the last, I don't know, two or three years, they've started talking about this Vachard method and they've actually updated the helicopter flying handbook to include the Vachard method. I wish they went into a little bit more detail about it in the book, but they don't. They give it like a little bit of a paragraph and you gotta kinda read it opinion. You kind of gotta, gotta read it two or three times to actually understand what they're saying. Anyway, so with the traditional method, we're just going to build airspeed to get out of it and we'll demonstrate that here shortly. As soon as I get set up here, there's our 18. We're actually climbing up to 2,000. We're going to turn into the wind. So we're about two or three miles south of the airport. The wind's there, we're two eight zero. So we're going to kind of make a right turn here and kind of get ourselves situated with the into the wind. As I'm doing that, I'm going to set up for this out of ground effect hover. I'm over an open field here, I've got plenty of altitude, start bringing my airspeed back. I'm going to bring us into the hover. In order to demonstrate this with students, I usually just, I either put us in a vortex ring state or we'll just set it up from and out of ground effect hover by simulating lowering the collective to get into descent and then we push it forward. So here we are setting up, bringing the Airspeed back a little bit as I'm doing it. Adding some collective here. Don't mind me. I'm kind of talking like I'm an instructor here. Looking for that trim string to go dead. There it is. It's going limp. Showing about 10 knots of ground speed. We're barely cruising forward here. There's eight knots of ground speed, so we're pretty much in it. All right, so if we look at our power pulling 92%, I'm controlling the descent rate. We're at zero. There's ground speed showing three dashes. We're completely at zero. All right, so I'm pulling about 98% power here because there's not a lot of wind. I can be in that, in the G2. I can be in that yellow for five minutes as long as I'm under 30. All right, so I'm holding here. Now the traditional method, if we start sinking, we're going to feel some of that vibration. We're going to see the VSI come alive and then we're going to have little to no cyclic authority or even collective authority. As I lower the collective, kind of simulate us starting to sink here, I'm just going to do what we call the traditional method and I'm going to push forward. All right, so I'm pushing down, maintaining heading there. We're getting some vibration. There's 500 foot descent rate. There's 600, there's 700 building. Alright, so I need to recover here. There's almost 1,000, so I'm just going to push the nose forward. Just nice and easy, nice and gentle. Build that airspeed. There's my airspeed indicator coming alive now. I'm going to start coming up on my collective and we're going to fly out of it. This method is great if you have altitude to play with.

Right.

So right now I just lost 500ft. I just lost 500ft right there. Recovering in the traditional method. Alright, so now what we're going to do is we're going to set up and I'll demonstrate the Vachard method. So I think each recovery technique has its time and place. If you have altitude, I would always go with the traditional build airspeed. If you have altitude to play with, then you get into vortex ringing state, then just build airspeed to get out of it. The problem is some of those guys, some of those pilots, due to the nature of their work, are hovering in kind of in the height velocity diagram, the dead man's curve there, where they don't have Altitude, and that's because of the nature of their job. They're hovering at 200ft doing line work or they're doing whatever. Hovering at 200ft, where, you know what? I just lost 500ft recovering there. Well, at 200ft, obviously I don't have 500ft to recover from. So they may want to look at the Vachard method. Okay. In this aircraft, in the G2, due to the clockwise rotating system, the Vachard method, I'm going to raise collective, the recovery technique, the corrective action is I'm going to raise collective as I'm adding right pedal, and then I'm going to sidestep to the left. I'm going to actually put cyclic input to the left, and I'm going to sidestep. Now it's just not a little push of the left cyclic. It's a good input of left cyclic. To get out of that, what you're doing is you want to get rid of, get out of that downward column of air and completely get out of that. So your rotors are in that nice, clean, undisturbed air. Four one, zero.

Tail is about four miles to the west.

Inbound, landing Scotia. The good thing about the Vachard method is that you don't lose a lot of altitude. You may lose only 50 to 100ft or even less, depending on how fast you set it up or how fast you recover from it. So here I'm back at my 2,000ft. I'm setting up into our out of ground effect hover again. So the Vachard method is nice if you don't have altitude to play with. The one downfall about the Vachard method is since you are sidestepping in one direction, you better be aware of what's on your side that you're sidestepping to. So those guys working on power lines or towers or whatever, if they need to sidestep, they really need to make sure that there's no obstacle to your side, to that side. So on the clockwise rotating system like the G2, we're sidestepping to the left in the counterclockwise instruments, bells, MDs, you're gonna be sidestepping to the right. So here we are holding. We're about 2,000ft here. Trim string is dead. There's my ground speed's dead. So in order to kind of simulate this, I'm going to put us down on, push down a little bit on collective. Now again, to recover from this, I am going to raise collective, add right pedal, and then a Good input on left cyclic. All right, here we go. So I'm just going to lower collective a little bit, kind of simulate us sinking. Keeping my heading with the pedals. There's a sync rate, there's our vibration, so I'm going to come up right and left, pull us out of that.

Now.

As you can see, I've only lost 100ft on that one. And then I'll push forward and build some airspeed. Still kind of descending a little bit. There's 200ft. So again, we'll set it up again here. So I think again, as I was talking about, we'll do it one more time here. We're at 2000ft indicated. That's about 1200ft off the ground here in Indiana. I'm into the wind. I'm setting up for out of ground effect hover here at a little bit of airspeed still. Alright, so we'll be at 1900. That's where we're going to be and that's where we're going to start. Alright, trim string is dead. Ground speed is about six knots, Pretty darn close to zero. All right, so I'm just going to lower collective a little bit, kind of simulate us getting into vortex ring state. There's 500 foot descent rate. There's our vibration. I'm coming up right to get out of that column. And again you're losing about 50 to 100ft. As a recap, I think there's a time and place for each, for each maneuver. The traditional method, if you have altitude, just push the nose forward, build that airspeed and then get out of it. If you don't have altitude to play with, then the Vachard method might be the recovery technique that you want. However, just be aware of what your side stepping into. Make sure there's no obstacles to your left or right side, whichever side you're stepping into. And there you go.

Awesome.

What do you think?

Great, great presentation. I'm ready to turn the camera off and practice a little bit, so.

All right, maybe you should turn it on just for leaving on and I'll get you for a little bit flying and then we'll turn it off.

I don't know. Okay, maybe sure if I'm ready for that yet.

All right, go ahead and turn it off when you're ready and then I'll give you the controls.

All right, more to come from Chris Hauser in the Cadbury.

This is our hour number three.

I'm going to do two more. So I have my five hours. We're getting ready to next week do a pre flight in the Hog Studios. Howser's gonna bring the Cadbury down. We're gonna do that video for you. People are really enjoying the Cadbury videos, so subscribe to the channel. Click the bell when you do so you'll be notified of our other new videos coming out. Comment below and we'll see you in the next video. Peace out. All right, that one went. We turn this thing off, I get rid of it on the floor, see if the GoPro is still recording or not.