I've been asking myself how a plane takes off ...I've a simple answer now

Awesome explanation, thanks! But I wonder why Engine #2 is started with the help of Engine #1. I know it may be technical difficult but in case of some emergency (Engine #1 fails) we cannot start Engine #2 anymore. Why is there no backup from the APU possible for both engines?

Get rid of the damn music. It gets tiresome after the first few minutes of it.

I think you are wrong. It works according to Bernoulli's principle that states that in fluid dynamics an increase in the speed of fluid occurs simultaneously with a decrease in pressure or decrease in the fluid's potential energy1 This is what creates the lift for the plane!

Bring an extra key just in case

4:00 not koanda, here mainly surface tension.

arent some engines running in reverse while starting up? i remember someone saying that reverse pulls in fuel or something

Excellent tutorial. 👍

Huh. I always figured there was a starter motor similar to a car to spin up the main engines. I had no idea the APU used waste gas to spin up the mains. That’s really cool. So there are fluid lines from the APU to each main engine? How big are they?

What about the Ground Power Unit and when is it used?

If the Tempratiure gets high enough to melt metal, why doesnt the engine melts ?

very good explanation, very informative

Brilliantly explained mate!...Thanks for that.

Thanks mate!...In all my years I never wondered how jet engines really worked!...Thanks so much. Clear concise and well narrated!

I wish the narration wasn't too boring, the guy could be a little more excited so to speak, instead of a dead pan

The presenters accent is so so cool 😎 plus the amazing explanation has got me reverted

i can barely even explain how a turbofan/turboprop works without explaining how it starts.

There's some clever people out there, for sure.

Wow! Loved the explanation and the sounds.

Amazing 😍 and LOUD engine sounds

Amazing 😍 and LOUD engine sounds

Holy cow! I can hardly keep my bicycle turning at 15 rpm!

Very helpful, you answered my curiosity.

I want more videos like 5:46

At 4:35 engines are labeled backwards. Engine 1 is aircraft left and engine 2 is aircraft right

Suck Squeeze Bang Blow

Thanks. I always wondered how airliners started their engines. Very informative and easy to understand.

I often though the added droning noises where bearings especially in older engines.

Wow, nice!

Excellent.

Focus on the exhaust of the engine when the ignition starts, you can see the heatwave in the background

Italian Leonardo da Vinci had already found answers to many of these questions over 500 years ago.

Awesome thanks !

This is incredible to know, as scared as I am looking into a jet engine when i board a plane, it still is fascinating

I died of boredom after 2 minutes.

I’m an airline captain…and this is a pretty cool video… However, starting the 2nd engine with air from the first is NOT a normal procedure… With normal APU operation, both engines are started in the same manner… Cross-bleeding works fine(using air from the 1st to start the 2nd), but it’s not the norm….

Great explanation but one sound missing. I could not hear the igniters cracking. I always enjoyed hearing that when near a turbine starting.

Very informative . Thanks.❤

What happen if engine start st first stage only, will the sir flow to the other egde.

at 4:33 the #1 engine is #2 and 2 is 1

0:09 747 GANG

how come

Very nice video. Well explained for beginners like me, who are aviation enthusiasts. Thanks for sharing.

"How do airplane engines start?" Generally reliably.

Great explanation of the start sequence on the ground. What about the engine restarting process in the air?

No such thing as centrifugal force. Centrifugal motion yes, but not a force. You’re referring to centripetal force.

No one knows, it’s just magic

Starter shutt off valve is the valve that opens when pilot selects "start" to allow the APU air to hit the air turbine starter motor mounted at around 6 PM position on each engine. Starter shutt of valve is a butterfly type valve mounted in the air ducting between APU and the air turbibe starter, it is electrically controlled. Air turbine starters are high speed low torque units, however a built in reduction gear system converts this high speed low torque to low speed high torque which is capable of rotating engine through a gearbox, also mounted on the engine. Leave me a note if some one is interested to learn more. Any topic, airplane related.

This is enough to scare the daylights outta ya' if you're about to get on a flight.

Did you ever notice there are NO atheists on a plane when it hits turbulence?