I’ve just seen an Iberia A321 parking in front of me while spotting and focused on the nº2 engine to record how much time needed a CFM 56 engine to completely stop. Recorded at Barcelona – El Prat airport (LEBL).
Mmm. The rotation of piston engines is always noted from the front, the front pulley end, and is always clockwise. Of course, in either case, gearboxes can “reverse the trend” no?
Guess it really matters when the computer says you are #”&$D & the pilots ignore it.
Read the voice recorder analysis. Air France 441. 100% pilot error. Totally incapable of thinking out of the box. listen & you’ll agree:. A perfect aeroplane, with a minor sensor fault: Lack of training/whatever. Poor management.
the swirly stripe is to give the birds something to see, so they don’t try and go through the engine, otherwise it would just look like a black hole, something they thing they can get through, instead of diving out of the way..
the swirly stripe is to give the birds something to see, so they don’t try and go through the engine, otherwise it would just look like a black hole, something they thing they can get through, instead of diving out of the way..
thats for the ground crew,there’s a point in the fan RPMs that it looks like is not moving at all,but with that swerly paint youll always see it moving if it is,so it is just a visual clue for them to avoid be suck inside or get to close…
thats for the ground crew,there’s a point in the fan RPMs that it looks like is not moving at all,but with that swerly paint youll always see it moving if it is,so it is just a visual clue for them to avoid be suck inside or get to close…
You nut, that stripe isnt for birds , its for ground personnel so they can tell which engines are up and running while on the tarmac. They wear headphones because of all the noise and painted elipse gives them a measure of visual protection when they cant hear because of all the ground noise.
You nut, that stripe isnt for birds , its for ground personnel so they can tell which engines are up and running while on the tarmac. They wear headphones because of all the noise and painted elipse gives them a measure of visual protection when they cant hear because of all the ground noise.
I really just hope you’r joking, I cant really tell. I don’t want to go all off on you saying your dumb if you are just being sarcastic, because that not what that swirl on the fan blade is for at all…. :p
I really just hope you’r joking, I cant really tell. I don’t want to go all off on you saying your dumb if you are just being sarcastic, because that not what that swirl on the fan blade is for at all…. :p
I’m guessing that the opposite rotation after stop is the starter/generator which is always connected to the engine and is getting some kind of electrical load….help me here, experts…
I’m guessing that the opposite rotation after stop is the starter/generator which is always connected to the engine and is getting some kind of electrical load….help me here, experts…
When the engines are running, you can NOT see the swirl in the center of the engine fan blades. Once then engine is spooled down, the swirl becomes visible. The swirl is just there to give ground personnel a visual indication of when it is safe to approach an engine.
When the engines are running, you can NOT see the swirl in the center of the engine fan blades. Once then engine is spooled down, the swirl becomes visible. The swirl is just there to give ground personnel a visual indication of when it is safe to approach an engine.
I used to do ground op’s with 737’s, bombardiers, occasionally 777’s and antanov’s
the 737’s from idle to the engine off an then spooling down (clearly heard) we would count 30 seconds give or take before walking into the ingestion zone.
it was good fun throwing peoples bags
I used to do ground op’s with 737’s, bombardiers, occasionally 777’s and antanov’s
the 737’s from idle to the engine off an then spooling down (clearly heard) we would count 30 seconds give or take before walking into the ingestion zone.
it was good fun throwing peoples bags
White marking is a bird eye view to scare small bird away and on the ground is a visual reference for ground personnel just like on a propeller type airplane they have some marking as well.
White marking is a bird eye view to scare small bird away and on the ground is a visual reference for ground personnel just like on a propeller type airplane they have some marking as well.
by the time birds see anything they’re already being sucked into the engine! lol, I’d say it’s more to humans to understand (such as those in the ramp) engine is active
by the time birds see anything they’re already being sucked into the engine! lol, I’d say it’s more to humans to understand (such as those in the ramp) engine is active
the swirl in the hub of the front fan, is to indicate the direction the fan is rotating, so when you attempt to start the engine in tailwind ground operator will signal the pilot that its clear to start, otherwise it may start while its turning in the wrong direction and you’ll have a hung or a hot start.
it may be to scare birds but i think its a common misconception, they could just paint the whole thing white 😀
the swirl in the hub of the front fan, is to indicate the direction the fan is rotating, so when you attempt to start the engine in tailwind ground operator will signal the pilot that its clear to start, otherwise it may start while its turning in the wrong direction and you’ll have a hung or a hot start.
it may be to scare birds but i think its a common misconception, they could just paint the whole thing white 😀
That doesnt seem right.. I’m sure the paint swirl is in place so when an aircraft has started its engines up, anyone that is walking nearby with airmuffs on can also visually see that the fans are spinning
That doesnt seem right.. I’m sure the paint swirl is in place so when an aircraft has started its engines up, anyone that is walking nearby with airmuffs on can also visually see that the fans are spinning
Actually the ‘swirly stripe’ is for a visual reference so you can see the engine is powered (for maintenance, staff, passengers, stupid people who might poke something inside it) It’s the same with aircraft with props they have the colored tips so it acts as a visual reference.
Actually the ‘swirly stripe’ is for a visual reference so you can see the engine is powered (for maintenance, staff, passengers, stupid people who might poke something inside it) It’s the same with aircraft with props they have the colored tips so it acts as a visual reference.
It’s more for ground crews to identify which engines are turning on a busy flight line. It can be hard to detirmine by sound alone, especially with hearing protection on and multiple aircraft in the area. Besides, bird strikes still happen. The frequency might be lessened, but I think that is more of a bonus than the original intent.
It’s more for ground crews to identify which engines are turning on a busy flight line. It can be hard to detirmine by sound alone, especially with hearing protection on and multiple aircraft in the area. Besides, bird strikes still happen. The frequency might be lessened, but I think that is more of a bonus than the original intent.
it’s actually for mechanics and other people working around these dangerous engines – just to see whether it is working or not. birds don’t see it anyway.
it’s actually for mechanics and other people working around these dangerous engines – just to see whether it is working or not. birds don’t see it anyway.
Okay let me make it clear to what the spiral in the middle of the engine is for.
The ground crew can’t see the spiral when the engines are on. When the engines shut down and slow down the spiral becomes visible to them and when it’s visible to them that means it’s safe to go close to the engines.
Okay let me make it clear to what the spiral in the middle of the engine is for.
The ground crew can’t see the spiral when the engines are on. When the engines shut down and slow down the spiral becomes visible to them and when it’s visible to them that means it’s safe to go close to the engines.
Excellent !! excellent !! Thank you for the patience to wait the whole action through to a complete stop. I like someone to be thorough. The main benefit was that I could see the stroboscopic effect of apparent clockwise and anticlockwise rotation in about 12 reversals/cycles. Most amazing. Check out at 1:42. The stroboscopic effect is dizzying ! The cycles reversed more quickly in the beginning, and then appeared to reverse more slowly towards the end. The stroboscopic effect is an optical illusion of apparently seeing the turbine spinning backwards at times; it is only a visual effect. Don’t be deceived if a piece of machinery looks like it’s not spinning; it may be spinning at a very high speed.
Excellent !! excellent !! Thank you for the patience to wait the whole action through to a complete stop. I like someone to be thorough. The main benefit was that I could see the stroboscopic effect of apparent clockwise and anticlockwise rotation in about 12 reversals/cycles. Most amazing. Check out at 1:42. The stroboscopic effect is dizzying ! The cycles reversed more quickly in the beginning, and then appeared to reverse more slowly towards the end. The stroboscopic effect is an optical illusion of apparently seeing the turbine spinning backwards at times; it is only a visual effect. Don’t be deceived if a piece of machinery looks like it’s not spinning; it may be spinning at a very high speed.
Cuarto día del Área de Simulación de la Campus Party 2007
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They generally don’t build the internals of jet engines out of either steel or aluminium – mostly it’s titanium alloys.
Mmm. The rotation of piston engines is always noted from the front, the front pulley end, and is always clockwise. Of course, in either case, gearboxes can “reverse the trend” no?
Guess it really matters when the computer says you are #”&$D & the pilots ignore it.
Read the voice recorder analysis. Air France 441. 100% pilot error. Totally incapable of thinking out of the box. listen & you’ll agree:. A perfect aeroplane, with a minor sensor fault: Lack of training/whatever. Poor management.
thumbs up if you were looking at the white swirly paint
thumbs up if you were looking at the white swirly paint
0:44 SUCKED IN!
0:44 SUCKED IN!
Low friction bearings, and completely balanced. Amazing!
Low friction bearings, and completely balanced. Amazing!
Why do they feel the need to add white swerly paint?
Why do they feel the need to add white swerly paint?
the swirly stripe is to give the birds something to see, so they don’t try and go through the engine, otherwise it would just look like a black hole, something they thing they can get through, instead of diving out of the way..
the swirly stripe is to give the birds something to see, so they don’t try and go through the engine, otherwise it would just look like a black hole, something they thing they can get through, instead of diving out of the way..
thats for the ground crew,there’s a point in the fan RPMs that it looks like is not moving at all,but with that swerly paint youll always see it moving if it is,so it is just a visual clue for them to avoid be suck inside or get to close…
thats for the ground crew,there’s a point in the fan RPMs that it looks like is not moving at all,but with that swerly paint youll always see it moving if it is,so it is just a visual clue for them to avoid be suck inside or get to close…
so you can see which way it is spinning
so you can see which way it is spinning
It is also a visual idicator for people on the ground that the engine is running.
It is also a visual idicator for people on the ground that the engine is running.
the white swirly stripe is to calm down the birds as they fly in the engine, they look at the stripe and get hypnotized so they fly in ……… LOL jk man!
the white swirly stripe is to calm down the birds as they fly in the engine, they look at the stripe and get hypnotized so they fly in ……… LOL jk man!
why am i watching this? how did i get here?
why am i watching this? how did i get here?
why dont they paint the whole leaves in that design then??
why dont they paint the whole leaves in that design then??
You nut, that stripe isnt for birds , its for ground personnel so they can tell which engines are up and running while on the tarmac. They wear headphones because of all the noise and painted elipse gives them a measure of visual protection when they cant hear because of all the ground noise.
You nut, that stripe isnt for birds , its for ground personnel so they can tell which engines are up and running while on the tarmac. They wear headphones because of all the noise and painted elipse gives them a measure of visual protection when they cant hear because of all the ground noise.
I really just hope you’r joking, I cant really tell. I don’t want to go all off on you saying your dumb if you are just being sarcastic, because that not what that swirl on the fan blade is for at all…. :p
I really just hope you’r joking, I cant really tell. I don’t want to go all off on you saying your dumb if you are just being sarcastic, because that not what that swirl on the fan blade is for at all…. :p
i dont think a bird has a choice. if it gets that close to see the swirly stripe, they would just get sucked in.
i dont think a bird has a choice. if it gets that close to see the swirly stripe, they would just get sucked in.
good to know
good to know
interesting
interesting
something is wrong with the engine! it like rotates very slowly and then suddenly it rotates the other direction!
something is wrong with the engine! it like rotates very slowly and then suddenly it rotates the other direction!
They’re not RR’s.
They’re not RR’s.
Not quite…it’s an optical illusion. You’d see almost the same exact thing if you saw it in person.
Not quite…it’s an optical illusion. You’d see almost the same exact thing if you saw it in person.
I’m guessing that the opposite rotation after stop is the starter/generator which is always connected to the engine and is getting some kind of electrical load….help me here, experts…
I’m guessing that the opposite rotation after stop is the starter/generator which is always connected to the engine and is getting some kind of electrical load….help me here, experts…
When the engines are running, you can NOT see the swirl in the center of the engine fan blades. Once then engine is spooled down, the swirl becomes visible. The swirl is just there to give ground personnel a visual indication of when it is safe to approach an engine.
When the engines are running, you can NOT see the swirl in the center of the engine fan blades. Once then engine is spooled down, the swirl becomes visible. The swirl is just there to give ground personnel a visual indication of when it is safe to approach an engine.
I used to do ground op’s with 737’s, bombardiers, occasionally 777’s and antanov’s
the 737’s from idle to the engine off an then spooling down (clearly heard) we would count 30 seconds give or take before walking into the ingestion zone.
it was good fun throwing peoples bags
I used to do ground op’s with 737’s, bombardiers, occasionally 777’s and antanov’s
the 737’s from idle to the engine off an then spooling down (clearly heard) we would count 30 seconds give or take before walking into the ingestion zone.
it was good fun throwing peoples bags
White marking is a bird eye view to scare small bird away and on the ground is a visual reference for ground personnel just like on a propeller type airplane they have some marking as well.
White marking is a bird eye view to scare small bird away and on the ground is a visual reference for ground personnel just like on a propeller type airplane they have some marking as well.
Camera stroboscopic effect.
Camera stroboscopic effect.
by the time birds see anything they’re already being sucked into the engine! lol, I’d say it’s more to humans to understand (such as those in the ramp) engine is active
by the time birds see anything they’re already being sucked into the engine! lol, I’d say it’s more to humans to understand (such as those in the ramp) engine is active
Nope, he is right. aircraft mechanics have told me that it is for birds. However it is also for ground crew to see that it rotates.
Nope, he is right. aircraft mechanics have told me that it is for birds. However it is also for ground crew to see that it rotates.
Hey I just met you
And this is crazy
So here’s my comment
So thumbs up maybe
Hey I just met you
And this is crazy
So here’s my comment
So thumbs up maybe
Its for both…
Its for both…
the swirl in the hub of the front fan, is to indicate the direction the fan is rotating, so when you attempt to start the engine in tailwind ground operator will signal the pilot that its clear to start, otherwise it may start while its turning in the wrong direction and you’ll have a hung or a hot start.
it may be to scare birds but i think its a common misconception, they could just paint the whole thing white 😀
the swirl in the hub of the front fan, is to indicate the direction the fan is rotating, so when you attempt to start the engine in tailwind ground operator will signal the pilot that its clear to start, otherwise it may start while its turning in the wrong direction and you’ll have a hung or a hot start.
it may be to scare birds but i think its a common misconception, they could just paint the whole thing white 😀
That doesnt seem right.. I’m sure the paint swirl is in place so when an aircraft has started its engines up, anyone that is walking nearby with airmuffs on can also visually see that the fans are spinning
That doesnt seem right.. I’m sure the paint swirl is in place so when an aircraft has started its engines up, anyone that is walking nearby with airmuffs on can also visually see that the fans are spinning
You are all wrong, The white swirly thing is to make the wind dizzy so it can’t focus on slowing the plane down !
You are all wrong, The white swirly thing is to make the wind dizzy so it can’t focus on slowing the plane down !
sure did. took your suggestion and gave the video one
sure did. took your suggestion and gave the video one
it is called a spinner
it is called a spinner
Actually the ‘swirly stripe’ is for a visual reference so you can see the engine is powered (for maintenance, staff, passengers, stupid people who might poke something inside it) It’s the same with aircraft with props they have the colored tips so it acts as a visual reference.
Actually the ‘swirly stripe’ is for a visual reference so you can see the engine is powered (for maintenance, staff, passengers, stupid people who might poke something inside it) It’s the same with aircraft with props they have the colored tips so it acts as a visual reference.
Reminds me of the snake’s eyes in The Jungle Book.
Reminds me of the snake’s eyes in The Jungle Book.
It’s more for ground crews to identify which engines are turning on a busy flight line. It can be hard to detirmine by sound alone, especially with hearing protection on and multiple aircraft in the area. Besides, bird strikes still happen. The frequency might be lessened, but I think that is more of a bonus than the original intent.
It’s more for ground crews to identify which engines are turning on a busy flight line. It can be hard to detirmine by sound alone, especially with hearing protection on and multiple aircraft in the area. Besides, bird strikes still happen. The frequency might be lessened, but I think that is more of a bonus than the original intent.
it’s actually for mechanics and other people working around these dangerous engines – just to see whether it is working or not. birds don’t see it anyway.
it’s actually for mechanics and other people working around these dangerous engines – just to see whether it is working or not. birds don’t see it anyway.
The name of the plane is Penis Cola *guffaw*
The name of the plane is Penis Cola *guffaw*
Peñíscola! I’ve rode this bird from Lisboa to Madrid. 🙂
Peñíscola! I’ve rode this bird from Lisboa to Madrid. 🙂
Okay let me make it clear to what the spiral in the middle of the engine is for.
The ground crew can’t see the spiral when the engines are on. When the engines shut down and slow down the spiral becomes visible to them and when it’s visible to them that means it’s safe to go close to the engines.
I hope that cleared things up.
Okay let me make it clear to what the spiral in the middle of the engine is for.
The ground crew can’t see the spiral when the engines are on. When the engines shut down and slow down the spiral becomes visible to them and when it’s visible to them that means it’s safe to go close to the engines.
I hope that cleared things up.
more jet engine full stop
more jet engine full stop
1:57 Dat cone flip doe
1:57 Dat cone flip doe
The swirl in the center of the engine makes the aircraft to a swirly-bird! 😀
The swirl in the center of the engine makes the aircraft to a swirly-bird! 😀
sometimes the wind keep the engine spinning, makes it annoying to inspect so I gotta hold on to the spinner and get it to stop.
sometimes the wind keep the engine spinning, makes it annoying to inspect so I gotta hold on to the spinner and get it to stop.
Excellent !! excellent !! Thank you for the patience to wait the whole action through to a complete stop. I like someone to be thorough. The main benefit was that I could see the stroboscopic effect of apparent clockwise and anticlockwise rotation in about 12 reversals/cycles. Most amazing. Check out at 1:42. The stroboscopic effect is dizzying ! The cycles reversed more quickly in the beginning, and then appeared to reverse more slowly towards the end. The stroboscopic effect is an optical illusion of apparently seeing the turbine spinning backwards at times; it is only a visual effect. Don’t be deceived if a piece of machinery looks like it’s not spinning; it may be spinning at a very high speed.
Excellent !! excellent !! Thank you for the patience to wait the whole action through to a complete stop. I like someone to be thorough. The main benefit was that I could see the stroboscopic effect of apparent clockwise and anticlockwise rotation in about 12 reversals/cycles. Most amazing. Check out at 1:42. The stroboscopic effect is dizzying ! The cycles reversed more quickly in the beginning, and then appeared to reverse more slowly towards the end. The stroboscopic effect is an optical illusion of apparently seeing the turbine spinning backwards at times; it is only a visual effect. Don’t be deceived if a piece of machinery looks like it’s not spinning; it may be spinning at a very high speed.
What plane is this?
What plane is this?
What do you call that visual phenomenon that you see the fan blade reverse direction even though it doesn’t
What do you call that visual phenomenon that you see the fan blade reverse direction even though it doesn’t
THİS ENGİNE FOR BOİNG 737-800
THİS ENGİNE FOR BOİNG 737-800
Guys chatting in Spanish in the background all the time! Los tíos hablando al fondo todo el tiempo!
Guys chatting in Spanish in the background all the time! Los tíos hablando al fondo todo el tiempo!
It does look like CFM56-5A engines like those
It does look like CFM56-5A engines like those
i didnt know that the engines spin that slow