The F-18 fin movement, while technically a 'flutter', sustained by aeroelasticity, was initiated by the vortex coming off the wing strakes at high alfa, note the quick pushover.
You are mixing flutter with some which are not flutter. The F-18 for instance was just the case of disturbed air (due to the wings high angle of attack) hitting the vertical stab.
The problem in the Bermuda Triangle is traffic volume. The “triangle” is located in one of the busiest shipping and flying lanes in the world. Statistically, there is no difference in the number of successful flights to bad ones compared to anywhere else in the world. Don’t believe me? Check into insurance prices there compared to other areas of the world. Noooooo real difference because it’s not any more likely you’ll crash there than anywhere else
@@TGears314 they tried to make up an ‘alaska triangle’ theory, too. Same scenario. The triangle just encompasses 90% of the state’s population and tourist destinations.
@@windowsxseven Ya r8 the more lifting tips u provide the more tip vortices but even simply square off tips on 10:1 length:width simple wing lose only 20 % effciency against ideal infinitly long wing in subsonic flight. Modern winglets & tapering wings reduce this lose to even 7% ..Inherrent stiffness of bi-planes itself reduces weight by 7%. Hence in biplane u get a safer plane with no flutter or vibration issues with same effective efficiency
@@engineerahmed7248 no, I'm not talking about induced drag, I'm talking about parasite drag (which is predominant in the high-speed low-lift flight condition airliners spend most of their time in), it's much more of a problem mainly due to the increased surface area
Cause flutter is easier to say, plus most people use flutter instead of anything more complicated that could possibly confuse others that don't know as much about planes as them.
Because flutter and resonance are different things. Flutter is an aeroelastic phenomenon in which wing bending and torsion are coupled in such a way as to generate self-excited, unstable vibrations. Unstable flutter conditions are mostly related to the phase angle between the bending and torsion vibrations, rather than proximity to the natural frequency of one vibration mode. P.S.: if you're associating what is displayed in this video to resonance because of the classic Tacoma Narrows bridge example, it's because the bridge collapse was caused by flutter, and not resonance. Teachers and textbooks who say the bridge collapse was due to resonance are mistaken.
Don't worry the plane is just flapping it's wings for extra lift
Xd
The F-18 fin movement, while technically a 'flutter', sustained by aeroelasticity, was initiated by the vortex coming off the wing strakes at high alfa, note the quick pushover.
Awesome compilation. Now, let me go and check my calculations just one last time...
In the old days, flying the B-727 when you were in the higher Mach numbers you'd get aileron buzz.
Oh really...lmao
This stuff is as scary as it is fascinating :)
If you've ever had an RC model suddenly 're-kit' itself in midair, this is often why it happens.
PUT YOUR HANDS UP IN THE AIR, WIGGLE WIGGLE WIGGLE
The pilot calls the operator: Pan pan pan, Wiggle wiggle wiggle, just a little wiggle.
Haha plane go _wiggle wiggle_
Needs more struts
Guys look its a dacing 747 in 3:25
I lost a few rc gliders cause of flutter... scary shit
What speed were they flying at?
You are mixing flutter with some which are not flutter. The F-18 for instance was just the case of disturbed air (due to the wings high angle of attack) hitting the vertical stab.
hehehe i seen that that day ....cool to c it on the net
You'll Know what's Fluttering when it comes off!
Playing
Steve Miller Band's fly like an eagle in my head
watch those planes boogie!!!
funny
There's a video of this happening to a B2 spirit. Looked like the wings were gonna break off.
Being the pilot or passenger of one of those planes will give me anxiety
You’d be OK as a steward or purser though?
Un-nerving bit of video 😲
AKA, Twerking
one of the best videos i've ever seen, thanks. Dreadful
2:18 isn't that the rc Zero from the video where it crashes into a helicopter?
Yes, it is
My First Guess is that flutter is caused by harmonics.
Hohner says, "Take that back!"
Scary but CUTE.... 0:37
Thank you
Fluttershy?
no, go away.
zenith ch601 had this issue
3:29 - that was insanely cute! =^_^=
Just a happy plane!
Very Interesting. It is my guess that if my wife saw this video, she would never fly to Vegas to see the grand Kids Again.
3:22 plane goes dance
No sound?
Considering how much Kevin Macleod and anime OSTs and heavy metal bullshit there is on TH-cam... I find the silence relaxing.
Scary stuff, feels like all hell is breaking loose. #AerodynamicResearch
Can anyone tell me what type of jet that is starting at :50
pretty sure it's C-141
@@turboromy yeah its def the C-141 starlifter. I figured it out a couple min after posting but thanks anyways.
Its a military transport and cargo plane
Tá lôcooo, não sabia ....!
That one at 3:10 ... poor guy didn't stand a chance.
Yep. th-cam.com/video/nRit6tcNT4s/w-d-xo.html
Could this be the problem on bermuda triangle?
No, this doesn't depend on the place
The problem in the Bermuda Triangle is traffic volume. The “triangle” is located in one of the busiest shipping and flying lanes in the world. Statistically, there is no difference in the number of successful flights to bad ones compared to anywhere else in the world. Don’t believe me? Check into insurance prices there compared to other areas of the world. Noooooo real difference because it’s not any more likely you’ll crash there than anywhere else
@@TGears314 they tried to make up an ‘alaska triangle’ theory, too. Same scenario. The triangle just encompasses 90% of the state’s population and tourist destinations.
~ㅇ~
Noice
Scary
1:24 speed? Imagine a plane traveling at that speed towards a building! 406 knots!
Yeah, imagine a completely different airframe, under completely different flight conditions, responding in a completely different manner! Crazy!
El flameito 🤣
Pfff.....very dangerous..
That is why you don't flying into turbulent...
Y not biplanes. stiffer shapes. They never experience flutter
Engineer Ahmed ... Usually control surface flutter first. But ya they do if the dive exceeds the drag.
Bridges have experienced flutter. Google galloping bridge. Your engineering teachers failed.
because they have shitass parasite drag coefficients
@@windowsxseven Ya r8 the more lifting tips u provide the more tip vortices but even simply square off tips on 10:1 length:width simple wing lose only 20 % effciency against ideal infinitly long wing in subsonic flight. Modern winglets & tapering wings reduce this lose to even 7% ..Inherrent stiffness of bi-planes itself reduces weight by 7%. Hence in biplane u get a safer plane with no flutter or vibration issues with same effective efficiency
@@engineerahmed7248 no, I'm not talking about induced drag, I'm talking about parasite drag (which is predominant in the high-speed low-lift flight condition airliners spend most of their time in), it's much more of a problem mainly due to the increased surface area
=o
Bu ne
*s i n*
???
Could be cos...
I don't know, there's a good possibility it might be tan
Umm...i guess.....but it seemed cosec to me
is flutter just resonance?
why are we making up new words for an existing concept, causing confusion?
I think you're the only one who's confused.
Cause flutter is easier to say, plus most people use flutter instead of anything more complicated that could possibly confuse others that don't know as much about planes as them.
Because flutter and resonance are different things. Flutter is an aeroelastic phenomenon in which wing bending and torsion are coupled in such a way as to generate self-excited, unstable vibrations. Unstable flutter conditions are mostly related to the phase angle between the bending and torsion vibrations, rather than proximity to the natural frequency of one vibration mode.
P.S.: if you're associating what is displayed in this video to resonance because of the classic Tacoma Narrows bridge example, it's because the bridge collapse was caused by flutter, and not resonance. Teachers and textbooks who say the bridge collapse was due to resonance are mistaken.
@@VIctorAbicalil thanks!
I feel like your first question should have just been a sentence since you had already made up your answer.