Fantastic helicopter ...... the pitch input at the end of the flare was late in coming, or am I missing something. Not trying to be an ass, I have been flying RC most of my life. I hope he repairs it
TOTAL DESTROYED sounds a bit sensationalist. It was not that bad, it can be fixed! Turbine, cockpit and blades seem to not have been damaged. Most important: pilot is well (lol).
As others have said, this was VRS / Settling with power, 100%. Although moving forward, the model was descending downwind which induced the VRS. The model departs into the wind which is normal. When the model impacts the ground, the dust blowing away from the crash site clearly shows the tailwind.
Seems like settling with power. The rate of decent exceeded the lift of the helicopter. Air flowing upward through the rotorblades causes the blades to develop turbulance at the tips and on top. This makes the blades stall, it loose lift and it falls out of the sky. Scale helicopters suffer the same problems like the real ones and so has to be flown like the real ones.
That was not vortex ring state, funny diagnosis. Engine failure or simple pilot error. Too much speed, vortex ring state is more a result from hovering too long in one spot. It cn not happen w/ forward flight.
it can if you turn downwind and forget to add power or add it too late, you can sink in own turbulence, these models are really heavy and underpowered with single stage turbine.. It happened to me, but because I had height I was just able to fly out of so called bad air, but it bounced on ground... he would have probably got away with it if he had kept disc level and landed like a fixed wing - slide on landing, his problem he put to much back stick in and it was a boom strike on landing, trouble is with these lamas at 1/4 scale is the machine uses a thrust engine which you have to counteract that thrust with a lot of back stick.. that's why I hate flying large scale models with a single stage, I fly with two stage turbines. This pilot turned down wind after a fast into wind flight, and tried to go from fff to a slow decent on a downwind run, it happens to the best of us, but was pilot error, and then in panic pulled too much back stick to speed up blades but run out of height and boom struck on landing.. it also may have been turbine loosing drive control which I have seen happen before, and cos the turbine is always running running you only notice when blades slow down..
slow Mo you can see the rotor stressing. maybe vortex ring state. couldn't get the power up quick enough, and didn't have enough altitude to use the Vuichard technique. Or have the state of mind to pull it off in a panic. I know when I crashed my 700, I was panicking for sure. The spirit rescue definitely helps in a panic, but would do nothing here.
Da habe ich aber echte Helis schon weit schneller runter kommen sehen die sind dann immer noch sanfter mit Autorotation (ohne Motorkraft) gelandet.Die landeten aber auch aus größerer Höhe (im Verhältnis).Ich denke die "Ablenkung" Interview durch den Sprecher war das Problem.
Got the engine too slow and did not allow for engine spool up time / lag. That or the throttle / pitch curve is badly setup. Once you get a Turboshaft too slow, the load on the driven stage can stall the gas outflow, result, no rotor mainshaft speed pickup and no future. Like trying to pull off in 5th gear.
Balboa park , ca, seen $10k 4x turbo engine plane , disappear on Maiden fly ..with insurance&co pilot lol...it's crashed into the mountains ..loss all control and went straight till the end ...less the week old
I cannot see any anomalies in the helicopter's rotor system either, it came in with a fairly high entry speed, then descended rather quick, came into the final flair but still with relative both high entry and descend speed but failed to slow down the descend rate, the only likely cause I can find then is ring vortexing. Unfortunate for such a beautifull machine.
At normal speed I can't see any flutter in the blades or shake in the body, but in VERY slow motion, a foot or so off the ground, the rotor disc does change shape from about 3/4 blade length out to the tips, an oscillation is beginning, unfortunately there wasn't time or height enough to recover. To make it out of a vortex wash, the motor needs to produce 2 times the power required to hover. THIS is NOT common, and it is very hard to get to a power to weight ratio like that. I still say you have got it right, vortex wash was the most likely culprit. Not unlike the invisible wind shear that kills aircraft all the time.........it a BITCH when you don't see it coming. The COWARD'S PUNCH of the Aviation world......
It certainly is, and I must admit it also happened to me in the days I was still an active pilot, windsheer on final in the flare 10 feet above the ground causing a wingdrop and a very hard landing braking the nosewheel clean off. Fortunately it was a pusher plane with the engine on top of the wing, or it would have been a schockloaded engine as well.
From the time he made a loop heli start loosing Rpm and he tried to save it by Autorotation ( I guess ) but had not enough inertia left in spinning rotor and come down to fast and hard - next thing gravity did the job. Sad cause it was nice Lama Heli
Ich sehe gerade auf DMAX den Wiederaufbau der Lama 2👍👍...
Menudo bombazo mala suerte
Party on 2:37
Geile überleitung erst mal Werbung für Essen und Getränke gemacht!
Find ich auch aber er macht jz auch eine neue bessere Lama
Some gear in the main gear train failed, he was on german tv rebuilding it.
Yes i know, Dmax
Super Video, schade ums Modell
Er hat ein neuen Heli Gemacht
2:35 Huston we have a problem!!!
RPM loss from about 2:30! Why?
Damn , I hope everyone is alright.
its not real its an rc model the pilot wasnt actually inside he was flying it remotely
Ach nein, so ein schönes Modell, tut mir wirklich Leid für den Besitzer.
5tausend Euro
Fantastic helicopter ...... the pitch input at the end of the flare was late in coming, or am I missing something. Not trying to be an ass, I have been flying RC most of my life. I hope he repairs it
No he build a new one and sell it
TOTAL DESTROYED sounds a bit sensationalist. It was not that bad, it can be fixed! Turbine, cockpit and blades seem to not have been damaged. Most important: pilot is well (lol).
As others have said, this was VRS / Settling with power, 100%. Although moving forward, the model was descending downwind which induced the VRS. The model departs into the wind which is normal. When the model impacts the ground, the dust blowing away from the crash site clearly shows the tailwind.
Gibt es dieses Jahr auch wieder ein Best crashes Video von dir?
Could just one explain what happened and what caused this crash?
Markus K. It saw someone who was helisexual and killed itself.
Seems like settling with power. The rate of decent exceeded the lift of the helicopter. Air flowing upward through the rotorblades causes the blades to develop turbulance at the tips and on top. This makes the blades stall, it loose lift and it falls out of the sky. Scale helicopters suffer the same problems like the real ones and so has to be flown like the real ones.
I thought that the ground was too close and gravity was too strong.
Looks like poor decent. Too fast and too steep. Stalled.
The Tractor Beam from the Death Star was too strong.
Settle with power ?
That was not vortex ring state, funny diagnosis. Engine failure or simple pilot error. Too much speed, vortex ring state is more a result from hovering too long in one spot. It cn not happen w/ forward flight.
it can if you turn downwind and forget to add power or add it too late, you can sink in own turbulence, these models are really heavy and underpowered with single stage turbine.. It happened to me, but because I had height I was just able to fly out of so called bad air, but it bounced on ground... he would have probably got away with it if he had kept disc level and landed like a fixed wing - slide on landing, his problem he put to much back stick in and it was a boom strike on landing, trouble is with these lamas at 1/4 scale is the machine uses a thrust engine which you have to counteract that thrust with a lot of back stick.. that's why I hate flying large scale models with a single stage, I fly with two stage turbines. This pilot turned down wind after a fast into wind flight, and tried to go from fff to a slow decent on a downwind run, it happens to the best of us, but was pilot error, and then in panic pulled too much back stick to speed up blades but run out of height and boom struck on landing.. it also may have been turbine loosing drive control which I have seen happen before, and cos the turbine is always running running you only notice when blades slow down..
I spoke w' the actual pilot, he stated the bird was under-powered{turbine too small for the application}.
Cost?
Wow someone that loves rc boats..like to C, a build W ,rc large cat boat , with one those small turbines engine
th-cam.com/video/ljEaTyauQMU/w-d-xo.html&ab_channel=Dimitry
that will buff right out
slow Mo you can see the rotor stressing. maybe vortex ring state. couldn't get the power up quick enough, and didn't have enough altitude to use the Vuichard technique. Or have the state of mind to pull it off in a panic. I know when I crashed my 700, I was panicking for sure. The spirit rescue definitely helps in a panic, but would do nothing here.
The speaker mumbles in german language i do hardly understand anything and even the subtitles are nonsense see 2:39 "putin" instead of "turbine"
Da habe ich aber echte Helis schon weit schneller runter kommen sehen die sind dann immer noch sanfter mit Autorotation (ohne Motorkraft) gelandet.Die landeten aber auch aus größerer Höhe (im Verhältnis).Ich denke die "Ablenkung" Interview durch den Sprecher war das Problem.
Got the engine too slow and did not allow for engine spool up time / lag. That or the throttle / pitch curve is badly setup.
Once you get a Turboshaft too slow, the load on the driven stage can stall the gas outflow, result, no rotor mainshaft speed pickup and no future. Like trying to pull off in 5th gear.
Nope. Rate of decent exceeded the lift. Classic stall.
"FUCK. . . . . .!!!" Was the R/C pilot trying to flair in for a landing or pull an auto rotation???
I'd wanna be able to fly in it if I spent as much making and fixing this thing.
Rookie mistake.
可惜了，降得太猛了
и не говори...
No wonder it crash. there was no pilot in the heli
"Sorry about that 10 grand."
Das wurde nicht günstig🤧
Ca. 5 Tausend Euro
It looks like vortex ring state.
It also sounds like the pilot was being interviewed during flight, thus a little bit distracted.
Balboa park , ca, seen $10k 4x turbo engine plane , disappear on Maiden fly ..with insurance&co pilot lol...it's crashed into the mountains ..loss all control and went straight till the end ...less the week old
If you fly RC you better be ready to lose it all on the very first flight, no guarantees at all.
heart breaking I bet.....
These things seem really boring to fly, I prefer faster fixed wings...
Terrible stuff, I hope it sees the air once again!
oh shit
Ring vortex due to too high descend speed.
That is entirely possible, although I cannot see any irregular blade movement before the impact. I do think your onto the likely cause.
I cannot see any anomalies in the helicopter's rotor system either, it came in with a fairly high entry speed, then descended rather quick, came into the final flair but still with relative both high entry and descend speed but failed to slow down the descend rate, the only likely cause I can find then is ring vortexing. Unfortunate for such a beautifull machine.
At normal speed I can't see any flutter in the blades or shake in the body, but in VERY slow motion, a foot or so off the ground, the rotor disc does change shape from about 3/4 blade length out to the tips, an oscillation is beginning, unfortunately there wasn't time or height enough to recover. To make it out of a vortex wash, the motor needs to produce 2 times the power required to hover. THIS is NOT common, and it is very hard to get to a power to weight ratio like that. I still say you have got it right, vortex wash was the most likely culprit. Not unlike the invisible wind shear that kills aircraft all the time.........it a BITCH when you don't see it coming. The COWARD'S PUNCH of the Aviation world......
It certainly is, and I must admit it also happened to me in the days I was still an active pilot, windsheer on final in the flare 10 feet above the ground causing a wingdrop and a very hard landing braking the nosewheel clean off. Fortunately it was a pusher plane with the engine on top of the wing, or it would have been a schockloaded engine as well.
From the time he made a loop heli start loosing Rpm and he tried to save it by Autorotation ( I guess ) but had not enough inertia left in spinning rotor and come down to fast and hard - next thing gravity did the job. Sad cause it was nice Lama Heli
may i know when he made the loop ? as i can't find it in the video, thank you
🤦🤦🤦🤦🤦
Autorotazione
😂
Don’t know what went wrong there cause it sound like the engine was still running and he flew straight into the ground.
Lol