He fixed this problem right away without hesitation. Excellent recognition and recovery technique. Pretty smooth control and handling overall. It is obvious that the flight training this pilot received was done to a very high standard. It all goes back to one of the laws of learning that states simply that what one learns first will be what one does when a task arises. It is the founding premise that if something is taught correctly from the beginning, the student will, in most cases, learn correct procedural patterns of behavior. As a helicopter flight instructor for 28 years and still going, the single thing that I have observed is that it is far easier to teach a student correctly from the outset, rather than spend a great deal of time, and, ultimately, their hard earned money, trying to break them of bad habits and then teach them the right way to do things. This is a very good example of excellent training that resulted from excellent communication and transfer of learning to the student by the flight instructor. With few exceptions, it only gets better with a bit of time and experience. Congratulations to the student for on a very nice first solo! Well done!
Not being a helicopter pilot, I had to look up the term, because I didn't notice anything odd at first. Once I had the term defined for me, I was able to see it in the video. I found it quite interesting.
Nice job. I remember the best piece of instruction I ever got... “No matter what’s happening around you fly the plane”. The instructor continued to tell me of pilots who failed to latch the oil check door on the cowl of a 172 only to have it pop open during takeoff then crash trying to get back on the ground to close it. That advice saved my bacon my first licensed flight with my wife on board. I had never used the auto pilot in the schools plane, and on this particular flight I was using the auto pilot on our way back to our home FOB. Went through my checklist started on my downwind leg and when I turned for crosswind, the plane started fighting me. Wasn’t sure what was going on concentrated on the basics and turn final with the plane again continuing to fight me not altitude mind you only direction. Once landed and turned off of the runway I let go of the wheel only for it to rotate itself then realized I had failed to turn off the auto pilot. Touch of the auto cancel the loud piercing horn in my ear and the plane quit fighting me. Turns out because the auto pilot had been installed after the owner took delivery of the aircraft, there was no item for the auto pilot on the pre-landing checklist. Still my fault as PIC, but truly in my mind not knowing at that very moment what was going on the instructors voice popped in my head “no matter what’s going on fly the plane”. He truly did his job!
You picked up on it and responded amazingly quickly for a student pilot. There's plenty of thousand +hour Veteran pilots that would have taken twice the time to respond and lift up. Well done.
Wow. Kudos on you for promptly applying corrective action and successfully soloing. I've got 1500 fixed wing hours but have always wanted to try helicopters. I've even toyed with the idea of a gyro copter. Good luck with your flying.
I guess all the thumbs down are people who don’t know what ground resonance is. The student recognized it instantly and pulled the collective to fix it. I’m not a pilot but I’ve seen these things fall apart from severe ground resonance.
He did what was exactly right when he noticed the start of skid bouncing. He pulled up on the collective and got the ship off the deck. Ground resonance can also happen on approach by hitting the low skid hard, then bouncing to the opposite skid, then back which gets worse and repeats unless you yank the bird off the ground and try a new approach. In the 300s and 500s I flew for 3500 hours, both settled with the left skid first, we we had to be aware of any bouncing.
Wow, I am impressed. He IMMEDIATELY recognized and did an amazing job getting it under control. So easily could have gone wrong. The one’s that gave this a thumbs down, clearly have no clue about flying!
Very good recovery from what could have been the death of a helicopter. Also, i must add that the student pilot maintained very good control of hover height during the hover taxi. The only thing I question in this video is the SOP of backing up to get to the practice area. Startup procedures take anywhere from 3-5 minutes - a lot can happen behind the aircraft in that time, to act as an impediment. It's possible the pilot had ground crew spotting his 'reverse gear operation', which would make it considerably safer.
We used a common frequency to report all movement within the taxi area and used extreme caution. It's always worked out. We would transition to local controlling tower frequency once we were ready to enter the takeoff/landing run area. Tower would let us know if we were cleared or if we were expecting approaching aircraft. The airport fence and tower are only maybe 300 yards away. Class D airspace.
He's doing a great job, I've flown rc helis for years and was given the stick in a Robinson R 22 once, within seconds we were pitched over heading for the ground, my friend the pilot grabbed it back quickly, very tricky machines to control.
Considering this was a first solo flight the fine control and balance was exceptional. Flying a helicopter looks to be a very difficult skill to acquire and seems more difficult than flying a light aircraft. My father flew Wellingtons in WWII and he wouldn't go in any helicopter, said he hated the thought of his life depending on the integrity of just one ball-race! This surprised me considering he flew 32 bombing missions and survived.
As the head unloads and then again loads without the weight of the heli under it, they will start to violently vibrate. He saved it quickly by just pulling into a hover, if he hesitated any longer, it would have shook itself to death. Scary.
My man.. givin you a thumbs up from Florida.. Good job. I've seen ground resonance completely destroy a Schweizer.. and I mean compleeeetely destroy it. It was being piloted by an ex military chopper pilot too..
Nope, not ground resonance. That was just a little bit of PIO (pilot induced oscillation) and well handled by the pilot. PIO means the pilot puts control inputs in that shake the aircraft a bit, and the shaking aircraft shakes the pilot to keep it going. Watch the pilot's hand on the cyclic control as he lifts off, the movement is clearly shown at about 1" laterally, at perhaps 2 cycles per second.
Looks like flight school with very well maintained or very new beautiful Hughes 300 🚁's 👍🏼 Where is it and what, round about, money you need to get the private Helicopter flight-license there? With kindest regards from Germany and I really would appreciate an answer! ✌🏼‼️ PS: good Job & very mellow handling in my opinion while flying so low over ground! =]
That's a cool story in the description! I've never flown in a helicopter, but occasionally take a fixed wing lesson. Best flight was a half hour flying a WACO biplane.
Would love to be able to afford to learn to fly one.....love these brilliant man made inventions! Thanks for posting best of luck to all students. 👏👏👏👍🏴😉
I was always worried about that when checking out in the Schweizer but never saw any symptoms. I assumed the shock absorbers have a resonant frequency which can be discovered the hard way!
Wow, got squirly there as soon as the skids left the ground. Good job on getting the helicopter to come down, and proceed straight and level. I dont know much about actual helicopter. I tried to fly an rc helicopter on simulator. Damn that is hard.
He did everything perfect in this video. He was "squirlly" because he had to get the skids off the ground that instant, not half a second more, otherwise we would be watching a video of a helicopter litterally shake itself to pieces.
Hey, thanks for sharing the video. Before I read the description i thought "that looks like the flight school near acadiana regional airport in new Iberia" Are you getting your commercial license?
Good for you. I’ve never heard of or seen a helicopter get into ground resonance from a pick up to a hover. In fact, unless you picked up terribly (which it doesn’t look like you did) and the one skid on one side (because you can’t get into it with both skids on the ground right?) really scraped against the ground pretty hard and you were decreasing power while you were doing this (which you weren’t because your disc was pretty loaded, just another little bit of collective and your flying), I just don’t see this as ground resonance. Could you explain what happened and why you feel it was ground resonance? Because it just looked like your skids skidded across the blacktop just a little bit which startled you causing you to pause ever so slightly in your collective movement. Interested in your information. Overall, for your first solo flight, I’m impressed you did a fantastic job!
So, what is ground resonance? I read a wikipedia article and all I understood from it is that it has something to do with landing impacts deforming the rotors in some way?
so, if I am not missing the physics of this. he should'pull' some more pitch and go foreward, or somewhere other than a hover... like breaking the suction of a garden hose on the bottom of a 5 gallon bucket. ever lifted a bucket with a garden hose at full blast? it is my understanding that this is the same sort of thing.
My first solo flight, the instructor landed it and then said he was going to get a cup of coffee, and I should finish the lesson myself, I flew around while he was sitting next to the runway drinking his coffee, then when I came in for a landing I missed the spot by about 30 feet. The instructor came up to me, laughing, and said " The wind shifted while you were goes, didn't it "
I didn't see ground resonance as I understood it at 0:45 but there was a bit of resonance just as he was picking it up off the ground.. I always thought GR was more violent..
Ground resonance becomes increasingly violent with each rotor RPM until it gets to a point beyond being able to correct it, which is why it's so important to recognize it as soon as possible and react. Thanks for watching!
Is this resonance or just the consequence of hesitation pulling collective? I don't see any rocking back and forth that I associate with ground resonance. If you lift off slow enough, a helicopter is going to rotate about the "heavy" side.
Great job by the trainee. The resonance is subtle but could have been a lot worse I imagine if he'd handled it differently. The other instance I've viewed of this is the pilot tearing the rear section completely off the frame whereby he didn't cope nearly as well. Doubtful they keep statistics on how often this happens,, but it'd be good information to find out. I'm no pilot but it looks like one of their top nightmares when attempting to get his chopper airborne.
Yes ... a very slight GR @:47 sec .... these 269A&Bs (this is NOT a 300CBi) would very easily go into GR if the M/R blades were not phased correctly during the preflight (particularly if the machine had been relocated to a pad from hanger or similar) ... when I did my training in them (circa 1975) we trained to 'positively' get off the ground and then if necessary perform a 'Hovering Auto' to reset the blade phasing ... and then continue with the training sortie or flight as required. The cause of the issue generally was the interaction between the friction type blade dampers of the day and the sometimes soft U/C hydraulic dampers ... add to these some apprehensively clumsy student handling and you have a good cause of Ground Resonance .... having said all that the ol' 269 is a fantastic training machine .... (NB later machines ie S300 CBi etc had the Hydro/Friction blade dampers replaced by Elastomeric dampers which did a much better job of taming the GR tendencies).
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
He fixed this problem right away without hesitation. Excellent recognition and recovery technique. Pretty smooth control and handling overall. It is obvious that the flight training this pilot received was done to a very high standard. It all goes back to one of the laws of learning that states simply that what one learns first will be what one does when a task arises.
It is the founding premise that if something is taught correctly from the beginning, the student will, in most cases, learn correct procedural patterns of behavior. As a helicopter flight instructor for 28 years and still going, the single thing that I have observed is that it is far easier to teach a student correctly from the outset, rather than spend a great deal of time, and, ultimately, their hard earned money, trying to break them of bad habits and then teach them the right way to do things.
This is a very good example of excellent training that resulted from excellent communication and transfer of learning to the student by the flight instructor. With few exceptions, it only gets better with a bit of time and experience.
Congratulations to the student for on a very nice first solo! Well done!
Not the most spectacular example of ground resonance on tube, which is an entirely good thing! Thank you sir.
He did exactly the right thing to counter it: lift off! Well done.
Great reaction time, you saved the helicopter from self destruction .
Not being a helicopter pilot, I had to look up the term, because I didn't notice anything odd at first. Once I had the term defined for me, I was able to see it in the video. I found it quite interesting.
Wow, good save! That pilot was seconds away from disaster when he suddenly lifted up and prevented continued ground resonance! Whew!
He also did a pretty decent hover and low flying, let´s not forget that.
0:49
Nice job. I remember the best piece of instruction I ever got... “No matter what’s happening around you fly the plane”. The instructor continued to tell me of pilots who failed to latch the oil check door on the cowl of a 172 only to have it pop open during takeoff then crash trying to get back on the ground to close it.
That advice saved my bacon my first licensed flight with my wife on board. I had never used the auto pilot in the schools plane, and on this particular flight I was using the auto pilot on our way back to our home FOB. Went through my checklist started on my downwind leg and when I turned for crosswind, the plane started fighting me. Wasn’t sure what was going on concentrated on the basics and turn final with the plane again continuing to fight me not altitude mind you only direction. Once landed and turned off of the runway I let go of the wheel only for it to rotate itself then realized I had failed to turn off the auto pilot. Touch of the auto cancel the loud piercing horn in my ear and the plane quit fighting me. Turns out because the auto pilot had been installed after the owner took delivery of the aircraft, there was no item for the auto pilot on the pre-landing checklist.
Still my fault as PIC, but truly in my mind not knowing at that very moment what was going on the instructors voice popped in my head “no matter what’s going on fly the plane”. He truly did his job!
You had good training, it didn’t let you down.
You picked up on it and responded amazingly quickly for a student pilot. There's plenty of thousand +hour Veteran pilots that would have taken twice the time to respond and lift up. Well done.
Good job recognizing! Hard to believe its his 1st solo.
Nice job correcting that quickly and moving on to complete your first solo. Congratulations!🎊🎉
Wow. Kudos on you for promptly applying corrective action and successfully soloing. I've got 1500 fixed wing hours but have always wanted to try helicopters. I've even toyed with the idea of a gyro copter. Good luck with your flying.
I guess all the thumbs down are people who don’t know what ground resonance is. The student recognized it instantly and pulled the collective to fix it. I’m not a pilot but I’ve seen these things fall apart from severe ground resonance.
Excellent recovery! He will be a fine pilot💪🏻👍🏻
Wow awesome first solo! You’re a natural!
Very quick thinking.
You won't forget how that feels in a hurry. Congrats on the solo, a very big milestone.
He did what was exactly right when he noticed the start of skid bouncing. He pulled up on the collective and got the ship off the deck. Ground resonance can also happen on approach by hitting the low skid hard, then bouncing to the opposite skid, then back which gets worse and repeats unless you yank the bird off the ground and try a new approach. In the 300s and 500s I flew for 3500 hours, both settled with the left skid first, we we had to be aware of any bouncing.
Wow, I am impressed. He IMMEDIATELY recognized and did an amazing job getting it under control. So easily could have gone wrong. The one’s that gave this a thumbs down, clearly have no clue about flying!
Very good recovery from what could have been the death of a helicopter. Also, i must add that the student pilot maintained very good control of hover height during the hover taxi.
The only thing I question in this video is the SOP of backing up to get to the practice area. Startup procedures take anywhere from 3-5 minutes - a lot can happen behind the aircraft in that time, to act as an impediment. It's possible the pilot had ground crew spotting his 'reverse gear operation', which would make it considerably safer.
We used a common frequency to report all movement within the taxi area and used extreme caution. It's always worked out. We would transition to local controlling tower frequency once we were ready to enter the takeoff/landing run area. Tower would let us know if we were cleared or if we were expecting approaching aircraft. The airport fence and tower are only maybe 300 yards away. Class D airspace.
He's doing a great job, I've flown rc helis for years and was given the stick in a Robinson R 22 once, within seconds we were pitched over heading for the ground, my friend the pilot grabbed it back quickly, very tricky machines to control.
That may have been the ideal time to experience and correct ground resonance. The video is a very nice demonstration.
Good for you and congratulations on your first solo!
Great Video and awesome you published it! Very quick on the pick-up once it happened nice job! I hope all helo pilots watch this.
I don't know anything about helicopters, but this looks like a wonderful flight with excellent stability.
Picked it up immediately as soon as he recognized it. Good job.
Considering this was a first solo flight the fine control and balance was exceptional. Flying a helicopter looks to be a very difficult skill to acquire and seems more difficult than flying a light aircraft. My father flew Wellingtons in WWII and he wouldn't go in any helicopter, said he hated the thought of his life depending on the integrity of just one ball-race! This surprised me considering he flew 32 bombing missions and survived.
As the head unloads and then again loads without the weight of the heli under it, they will start to violently vibrate. He saved it quickly by just pulling into a hover, if he hesitated any longer, it would have shook itself to death. Scary.
My man.. givin you a thumbs up from Florida.. Good job. I've seen ground resonance completely destroy a Schweizer.. and I mean compleeeetely destroy it. It was being piloted by an ex military chopper pilot too..
... GREAT REACTION TIME & INSTINCT TO ACT IMMEDIATELY ... YOU KNEW JUST WHAT TO DO ...
Nope, not ground resonance. That was just a little bit of PIO (pilot induced oscillation) and well handled by the pilot. PIO means the pilot puts control inputs in that shake the aircraft a bit, and the shaking aircraft shakes the pilot to keep it going. Watch the pilot's hand on the cyclic control as he lifts off, the movement is clearly shown at about 1" laterally, at perhaps 2 cycles per second.
Looks like flight school with very well maintained or very new beautiful Hughes 300 🚁's 👍🏼
Where is it and what, round about, money you need to get the private Helicopter flight-license there?
With kindest regards from Germany and I really would appreciate an answer! ✌🏼‼️
PS: good Job & very mellow handling in my opinion while flying so low over ground! =]
At least he had the presence of mind to get it in the air once the GR started.
Excellent film footage and sound.
Looks minor from the outside, but after I watched it a few times, I could see where that could turn bad very quickly. Good save.
Good detection and prompt recovery.
and he kept his calm and got out off it great!
That's a cool story in the description! I've never flown in a helicopter, but occasionally take a fixed wing lesson.
Best flight was a half hour flying a WACO biplane.
Thanks. I've done a few flights in a Stearman and it's some of the most fun I've ever had. Old bi wings are a blast!
You did make it to RUclips. Luckily for the right reason
Saved that just in time, well done
Reminds me of when I was learning to hover an R/C model helicopter. When transitioning from ground effect into hover shit can happen in a millisecond.
great job re-adjusting man!
Good thing he popped it into the air. What causes that outside of unbalanced rotors? Negative pitch on the rotors at operating RPMs?
You were very lucky. Great job in a quick thinking recovery!
Would love to be able to afford to learn to fly one.....love these brilliant man made inventions! Thanks for posting best of luck to all students. 👏👏👏👍🏴😉
I was always worried about that when checking out in the Schweizer but never saw any symptoms. I assumed the shock absorbers have a resonant frequency which can be discovered the hard way!
Great recovery, seen several videos that didn't go so well.
Probably first time he every felt that little bird fly alone...haha. We all remember that first pitch pull.....
Wow, got squirly there as soon as the skids left the ground. Good job on getting the helicopter to come down, and proceed straight and level. I dont know much about actual helicopter. I tried to fly an rc helicopter on simulator. Damn that is hard.
He did everything perfect in this video. He was "squirlly" because he had to get the skids off the ground that instant, not half a second more, otherwise we would be watching a video of a helicopter litterally shake itself to pieces.
well done ! handled like a pro ! safe flying mate!
0:54 Was that ground resonance? It didn't look bad at all.
Hey, thanks for sharing the video. Before I read the description i thought "that looks like the flight school near acadiana regional airport in new Iberia"
Are you getting your commercial license?
That guy was quick and did exactly the right thing.
Advantage of Bell rotor: no ground resonance. Disadvantage: mast bumping. This guy got it off the deck sharpish, just as he'd been trained to. Nice.
Good for you. I’ve never heard of or seen a helicopter get into ground resonance from a pick up to a hover. In fact, unless you picked up terribly (which it doesn’t look like you did) and the one skid on one side (because you can’t get into it with both skids on the ground right?) really scraped against the ground pretty hard and you were decreasing power while you were doing this (which you weren’t because your disc was pretty loaded, just another little bit of collective and your flying), I just don’t see this as ground resonance. Could you explain what happened and why you feel it was ground resonance? Because it just looked like your skids skidded across the blacktop just a little bit which startled you causing you to pause ever so slightly in your collective movement. Interested in your information. Overall, for your first solo flight, I’m impressed you did a fantastic job!
Err... what's ground resonance?
Ground Resonance ??? I looked closely and some how missed it.
MacGyver saves the day again. Good job not destroying yourself, the helicopter, or the people around you.
Also, you uploaded this on my birthday. =p
So, what is ground resonance? I read a wikipedia article and all I understood from it is that it has something to do with landing impacts deforming the rotors in some way?
Looks like so much fun, I wonder if the VA vocational rehab has helicopter pilot school?
Wow! Handled very well!
that looks like a super fun little helicopter.
Well done. I can't fly one, but Wikipedia says you did it right.
so, if I am not missing the physics of this. he should'pull' some more pitch and go foreward, or somewhere other than a hover... like breaking the suction of a garden hose on the bottom of a 5 gallon bucket. ever lifted a bucket with a garden hose at full blast? it is my understanding that this is the same sort of thing.
great quick reactions, well done!
It was a nice pick up for a first solo flight!
Awesome job! Exactly as you’re supposed to do.
Flying backwards without a clearing turn to check what is behind?
beautiful recovery !!!
Looks like he did the right thing and pulled clear of the ground.
I don't know much about helicopters. Did the student do anything wrong? Did he hover to low or something?
My first solo flight, the instructor landed it and then said he was going to get a cup of coffee, and I should finish the lesson myself, I flew around while he was sitting next to the runway drinking his coffee, then when I came in for a landing I missed the spot by about 30 feet. The instructor came up to me, laughing, and said " The wind shifted while you were goes, didn't it "
good save and a good lesson as well as well trained
I didn't see ground resonance as I understood it at 0:45 but there was a bit of resonance just as he was picking it up off the ground.. I always thought GR was more violent..
Ground resonance becomes increasingly violent with each rotor RPM until it gets to a point beyond being able to correct it, which is why it's so important to recognize it as soon as possible and react.
Thanks for watching!
Was it during the initial lift-off? Cuz, not being a helicopter pilot, I had trouble seeing the ground resonance.
you rocked it. ill call you 'Chickenhawk'
Good recovery!!
I'm sure that was exciting, but I would have never noticed if you had not told me when and where to look. Perspective I guess.
Was that a good job! ? From nc
Why didnt you set it down or attempt a take off where it may have evened out ? Was it a mechanical faliure ?
Pretty good pilot for first solo!-John in Texas
Is this resonance or just the consequence of hesitation pulling collective? I don't see any rocking back and forth that I associate with ground resonance. If you lift off slow enough, a helicopter is going to rotate about the "heavy" side.
Why would half the viewers put a thumbs down on this? Did they expect to see an accident?
Awesome flying , great control
He did good; picking up as quickly as he did. I Love the ‘300!
Exactly, what is ground resonance?
How much does it cost to get a pillow license , for helicopters....
Anyone?
I trained in 300s and never had this issue, but you solved it very nicely - get it off the ground!
Great job not becoming a "youtube" video. I have started my journey in rotorcraft flight as well.
Nice looking helicopter
Excesso PR Air to damppers of Lansing gear, note to mucjh extrended the schokers, Meeting overhauj to 4 units
How many hours usually to first solo? I
Nice bit of flying. Good job my son, good job.
Great job by the trainee. The resonance is subtle but could have been a lot worse I imagine if he'd handled it differently. The other instance I've viewed of this is the pilot tearing the rear section completely off the frame whereby he didn't cope nearly as well.
Doubtful they keep statistics on how often this happens,, but it'd be good information to find out. I'm no pilot but it looks like one of their top nightmares when attempting to get his chopper airborne.
Excellent response when lift off
It looks to me that he had time before liftoff to just dump the collective and start over, instead of carrying the resonance into the hover. Or not.
That was wild! I didn't know such a thing could happen. I imagine things could go sideways rather quickly as fast as that started.
Yes ... a very slight GR @:47 sec .... these 269A&Bs (this is NOT a 300CBi) would very easily go into GR if the M/R blades were not phased correctly during the preflight (particularly if the machine had been relocated to a pad from hanger or similar) ... when I did my training in them (circa 1975) we trained to 'positively' get off the ground and then if necessary perform a 'Hovering Auto' to reset the blade phasing ... and then continue with the training sortie or flight as required. The cause of the issue generally was the interaction between the friction type blade dampers of the day and the sometimes soft U/C hydraulic dampers ... add to these some apprehensively clumsy student handling and you have a good cause of Ground Resonance .... having said all that the ol' 269 is a fantastic training machine .... (NB later machines ie S300 CBi etc had the Hydro/Friction blade dampers replaced by Elastomeric dampers which did a much better job of taming the GR tendencies).
Great save bruh!
Nicely done!