The crash in Iran was most likely due to poor weather. They most probably didn't notice they were going into Terrain before it was too late. Kobe Bryant's case is a good example why flying low in fog is not the most smart choice.
In a British context I was often employed as a passenger operating as either infra red or visual surveyor of overhead power lines back when we had to have a window open and the camera needed liquid nitrogen to cool the sensor. Our pilots were drawn from the military and they took their to their duties well. Following an overhead line at mid span height was easy for them. I do recall a positioning flight when the pilot said to we passengers [2] I have to carry out an "auto-rotation routine". Pilots always underplay the fun you are about to endure. We were in a twin engine Squirrel and the pilot just reached up with his left hand and shut down both jet engines. The aircraft felt like it dropped like a rock for twenty feet and then hit a rock and stabilized as the auto rotation took place under perfect control. We made the softest of soft landings. These pilots were so well engaged with their machines.
Neil deGrasse Tyson overrates himself. He is a legend in his own mind. I had a discussion with him after he claimed that “Zero is the same as nothing because it has no numerical value.” I tried to convince him that in fact, zero does have a numerical value. The numerical value of zero is zero. And it can conveniently be found on a number line at the zero position. He wasn’t convinced. He just got upset and angrily walked away.
he is very smart on a few things (space stuff mostly) but pretty stupid when it comes to most other things. the problem is that since he's so smart about space he's convinced himself that he's smart in everything.
he is very smart on a few things (space stuff mostly) but pretty stupid when it comes to most other things. the problem is that since he's so smart about space he's convinced himself that he's smart in everything.
I knew someone who was in a helicopter crash. They weren’t flying very high, and the pilot tried to reassure them that if the engine stops they will just float down, and turned the engine off. They dropped like a stone, all walked away and I saw a photo of the helicopter and I often wondered how they walked away. It was a military helicopter, in a war zone
An all the way down collective puts the blades exactly flat? Isn't it necessary to have a small amount of reverse pitch to keep rotor blades at speed during decent by using the decent (so rotor inertia will be available for the flare just before landing)? Inquiring mind wants to know
Yes. Collective is used to regulate the rotor speed. It is possible to over or underspeed the rotors, depending on pitch angle. This video oversimplifys auto's some.
I've always been skeptical of auto-rotation. Seems like it would be very problematic. I believe most military helicopters also have some sort of ejection, where the blades are discarded and then the pilots can eject as from an airplane.
@@KhaoticKalmvery few mil helicopters have it. The Russian Ka-52 is one, related to having a dual counter rotating rotor which probably makes autorotation less effective (?). Can’t think of any other current one.
@@joso5554 I liked one guy that said “if it’s so effective why don’t they practice in school”. While I understand it’s still a hard landing for the vehicle the question made me laugh.
Big mistake. A helicopter's rotors don't generate lift by forcing air down. They are airfoils and generate lift by moving through the air. Just like a wing.
a plank can generate lift. Airfoils are merily improvements to a plank to compromise between wing lift and drag for specific applications. Most lift comes from angle of attack. This angle of attack is what forces air downward and is responsible for most of this downward thrust.
I always wondered after the copter crash in Glasgow why copters don't have an emergency chute from the frame to at least reduce the impact of any crash. Ditto with small airplane frames.
To be able to use a parachute would require the main rotor blades to have explosive separation devices to be jettisoned, for obvious reasons. This would in turn cause major hazard around as a rotating blade has huge energy and would cause major damage on the ground. Besides, a parachute requires a significant altitude margin (easily 100m or more) to deploy, before it sustains its load. Until then, it doesn’t slow down the fall, at all. Autorotation works even for engine failures at very low altitudes if the helicopter is flying fast enough horizontally. So basically a parachute would be much less efficient and useful than autorotation, and much more dangerous for the surroundings.
It is contrary to the commonsense that the copter have to maintain the hi pitch in order to keep the lift even without power. Even the toy propeller that is hand-spun and you let it fall has pitch in blades. I think the parachute buoyancy is somehow mixed between drag and lift.
Unless you encounter LTE or the enemy shoots the hell out of your transmission and the pilot or the blades, etc, etc etc.... in Vietnam we carried extra heavy duct tape, got out of a hot LZ, set down and taped the bullet hole damage Any CFI will train you how to auto rotate.
🤔 So you only proved him participant wrong and hence he is partially correct. This only works if the system works as it should, If rotor blades stop turning then it will fall like a brick, and if the pilot does not pull the lever it will fall like a brick. I’ve seen lots of helicopters falling straight down and crash while rotors are stills spinning. I’m sure that is what Tyson was saying
Neil de Grasse Tyson really made a serious fool of himself on this topic. What a level of arrogance and ignorance. I would hope that he properly apologized for saying such pathetic BS.
I dont think this is possible in all helicopters.soo many pple like Kobe,Raisi,saitoti from kenya.also numerous militarry choppers have been crushing in kenya could not have died
Unless you're in Iran...
Too soon🙈
Or in America... you know... Kobe!
😂😂😂
Yes
The crash in Iran was most likely due to poor weather. They most probably didn't notice they were going into Terrain before it was too late.
Kobe Bryant's case is a good example why flying low in fog is not the most smart choice.
In a British context I was often employed as a passenger operating as either infra red or visual surveyor of overhead power lines back when we had to have a window open and the camera needed liquid nitrogen to cool the sensor. Our pilots were drawn from the military and they took their to their duties well. Following an overhead line at mid span height was easy for them. I do recall a positioning flight when the pilot said to we passengers [2] I have to carry out an "auto-rotation routine". Pilots always underplay the fun you are about to endure. We were in a twin engine Squirrel and the pilot just reached up with his left hand and shut down both jet engines. The aircraft felt like it dropped like a rock for twenty feet and then hit a rock and stabilized as the auto rotation took place under perfect control. We made the softest of soft landings. These pilots were so well engaged with their machines.
Your timing 💀
Lol 😂
Not at night
Neil deGrasse Tyson overrates himself. He is a legend in his own mind. I had a discussion with him after he claimed that “Zero is the same as nothing because it has no numerical value.” I tried to convince him that in fact, zero does have a numerical value. The numerical value of zero is zero. And it can conveniently be found on a number line at the zero position. He wasn’t convinced. He just got upset and angrily walked away.
He thinks he is very smart but hes not.. I never liked that person....the kind of attitude he shows is just garbage on himself...
he is very smart on a few things (space stuff mostly) but pretty stupid when it comes to most other things. the problem is that since he's so smart about space he's convinced himself that he's smart in everything.
Neil lost his scientist title when he stopped doing science and started doing TV.
he is very smart on a few things (space stuff mostly) but pretty stupid when it comes to most other things. the problem is that since he's so smart about space he's convinced himself that he's smart in everything.
I knew someone who was in a helicopter crash. They weren’t flying very high, and the pilot tried to reassure them that if the engine stops they will just float down, and turned the engine off. They dropped like a stone, all walked away and I saw a photo of the helicopter and I often wondered how they walked away. It was a military helicopter, in a war zone
If man had been meant to fly.. he would have been given wings Mr. Wint
but you may slip in the bathroom \and die it doesn't mean that you should not take a shower
One of the most underrated Bond movies
Muito interessante! Eu sou fã dos helicópteros 🌟
An all the way down collective puts the blades exactly flat? Isn't it necessary to have a small amount of reverse pitch to keep rotor blades at speed during decent by using the decent (so rotor inertia will be available for the flare just before landing)? Inquiring mind wants to know
Yes. Collective is used to regulate the rotor speed. It is possible to over or underspeed the rotors, depending on pitch angle. This video oversimplifys auto's some.
Cool graphics!👍
I've always been skeptical of auto-rotation. Seems like it would be very problematic. I believe most military helicopters also have some sort of ejection, where the blades are discarded and then the pilots can eject as from an airplane.
Not most, but you’re correct that some do
@@KhaoticKalmvery few mil helicopters have it. The Russian Ka-52 is one, related to having a dual counter rotating rotor which probably makes autorotation less effective (?). Can’t think of any other current one.
Besides, autorotation is very effective, although it requires proper and regular pilot training.
I believe the a version of the Apache has it as well but I’m not well versed on the subject.
@@joso5554 I liked one guy that said “if it’s so effective why don’t they practice in school”. While I understand it’s still a hard landing for the vehicle the question made me laugh.
Tanks will split & fuel will spill most of the time & that will kill. Better ways to store fuel are required.
Big mistake. A helicopter's rotors don't generate lift by forcing air down. They are airfoils and generate lift by moving through the air. Just like a wing.
Sorry but lift does ultimately push air down. Can’t prevent it.
a plank can generate lift. Airfoils are merily improvements to a plank to compromise between wing lift and drag for specific applications. Most lift comes from angle of attack. This angle of attack is what forces air downward and is responsible for most of this downward thrust.
I always wondered after the copter crash in Glasgow why copters don't have an emergency chute from the frame to at least reduce the impact of any crash. Ditto with small airplane frames.
they do ..look up on here plane with parachute
To be able to use a parachute would require the main rotor blades to have explosive separation devices to be jettisoned, for obvious reasons. This would in turn cause major hazard around as a rotating blade has huge energy and would cause major damage on the ground. Besides, a parachute requires a significant altitude margin (easily 100m or more) to deploy, before it sustains its load. Until then, it doesn’t slow down the fall, at all. Autorotation works even for engine failures at very low altitudes if the helicopter is flying fast enough horizontally.
So basically a parachute would be much less efficient and useful than autorotation, and much more dangerous for the surroundings.
Yeah ! In Europe maybe every helicopter has a parachute and air bag 😉😅
1:20 Why "airresistance"? Is'nt it the windmill-effect which generates lift?
It is contrary to the commonsense that the copter have to maintain the hi pitch in order to keep the lift even without power. Even the toy propeller that is hand-spun and you let it fall has pitch in blades. I think the parachute buoyancy is somehow mixed between drag and lift.
Now repeat the autorotation in fog with icing.
Unless you encounter LTE or the enemy shoots the hell out of your transmission and the pilot or the blades, etc, etc etc.... in Vietnam we carried extra heavy duct tape, got out of a hot LZ, set down and taped the bullet hole damage Any CFI will train you how to auto rotate.
Only theory on paper.
Actually is not working when accident happening.
🤔 So you only proved him participant wrong and hence he is partially correct. This only works if the system works as it should, If rotor blades stop turning then it will fall like a brick, and if the pilot does not pull the lever it will fall like a brick. I’ve seen lots of helicopters falling straight down and crash while rotors are stills spinning. I’m sure that is what Tyson was saying
It was a very bad idea to release this video when there was a tragedy in Iran.
Absolutely
If it doesn't mean anything to you, it doesn't mean that you have to be impolite. When 9/11 happened, the whole world was with the United States.
@@zico3239 Read more Western media.
Come on, what has Iran to do with explaning a theory, that does not work.
They didn't get the memo about the maple seed theory 😮
Regarding 🚁 news from Iran, it is all part of God's plan. 🙏
No auto rotation when foggy😔
Where Was Kobe Bryant Maple seed ? 🧢🧢🧢🧢 That Engine Go !! Bye bye miss American pie ……..
No total engine failure for the KB crash. Controlled flight into terrain in foggy conditions.
Your stupid. It was due to the fog and terrain. They crashed head on.
Neil de Grasse Tyson really made a serious fool of himself on this topic. What a level of arrogance and ignorance. I would hope that he properly apologized for saying such pathetic BS.
What happens after death, this q comes in my mind after listened the death news of Iranian PM and Foreign minister?
Who is here after reading news about death of Iran president???
Yeah, but there's a considerable difference between losing engine power and slamming face first into a mountain peak.
Tyson also said men can be women. In so many words. Basically folding because he knows speaking literal common sense threatens his livelihood
Heavily.
not for the Iranian president
I dont think this is possible in all helicopters.soo many pple like Kobe,Raisi,saitoti from kenya.also numerous militarry choppers have been crushing in kenya could not have died
If the engine fails your dead. Simple. Don't try to sugarcoat it because of a handful of miracles that happened in history.
This is an extremely stupid comment
Badly and in bits.
Better use traditional parachute
On a helicopter ?!? 😂😂😂😂😂
@@joso5554 why not can try