What is reverse thrust? Explained by CAPTAIN JOE

  • Am Vor 5 years

    Captain JoeCaptain Joe

    Dauer: 05:48

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    Today´s question is another favorite of mine. What is reverse thrust and when do you use it?
    Okay, I´ll break it down for you to the absolute basics.
    Reverse thrust is used to slow down the aircraft on the runway after touchdown.
    There are three main components which slow down the airplane on the runway:
    Primary Braking with disc or carbon brakes similar to your car
    Secondary with reverse thrust
    Thrid with aerodynamical braking with the ground spoilers
    So we have two words in reverse thrust.
    “Reverse” cause the turbines output is being guided into the reverse direction and as you might not know we apply "thrust" in order to increase the braking action.
    So let´s look at this video to see what happens at touch-down.
    Here you can see engine number one of a Airbus A320. At touch-down these flaps open up, so called “reverser doors”. They act as guiding vanes in the mid section of the bypass-channel of the turbine and force the accelerated air of the fan to blow into the opposite direction.
    Now these reverser doors don´t open automatically at touch-down, no you lift up these little levers which will activate the hydraulic system to apply pressure to the actuator which then opens the reverser doors. Keeping the levers in this position only give you “Idle reverse”, but as soon as you move the levers to the aft position, the engine will spool up creating more thrust increasing the reverse output. The engines will increase thrust up to 70% which then resembles in “Full reverse thrust”. I know it´s odd to think that you would apply thrust again just after touch-down.
    You can definitely hear the difference between “Idle” and “full reverse thrust”, trust me :)
    Using the reversers significantly decrease the landing distance, varying between aircraft, weight and environmental factors. If you look at this great video of here, showing a Boeing 747 touching down and applying full reverse thrust you can clearly see how the water on the runway gets blown forwards.
    I actually experienced that myself landing on a snow covered runway, we applied full reverse thrust and you could literally see the snow blowing infront of the aircraft.
    So when do you use reverse thrust?
    Using “idle reverse” at touch-down is mandatory by many aircraft manufactures and airlines. First and far most to immediately decrease the aircrafts speed and to stabilize the aircrafts roll out plus to reduce brake usage.
    Landing on wet or snow contaminated runways using reverse thrust is absolutely vital to decelerate the aircraft and preventing it from skidding and keeping it in a straight line.
    Full reverse thrust is not permitted at some airports due to noise abendement procedures or at least restricted in between hours from here to then. Nevertheless pilots can use full reverse thrust when deemed necessary, but might have to state their decision in a report.
    Airplanes with wing mounted engines may only use full reverse thrust until slowing down to a specified speed, cause using the reverser below that speed could blow up loose gravel on the runway which could get sucked into the engine and damage the turbine. For example in an Airbus A320 you would have to reduce "full reverse thrust to idle reverse" at 70 knots, and retract the reverser at speeds below 40 knots.
    There are many different reverser types out there, but all work after the basic principle by forcing the air or even the exhaust into the opposite direction.
    So I hope I´ve answered another aviation related question for you. If you have a question that´s been on your mind, don´t hesitate to write me, therefore subscribe my channel, check out my website and spread the word!
    Farewell your Captain Joe
    Info:

    Fairly often you see executive jets using reverse thrust during taxi, to reduce break usage whilst rolling down sloping taxiways. Cause of their high mounted engines pilots don´t need to worry damaging the turbine due to gravel on the asphalt.
    And the well know MD80 with her rear mounted engines use to have a power back procedure, where they used reverse thrust to back out of a gate position. I´m not 100% if that procedure is still around? Maybe you know? To me that looks very dangerous.

Shoeb Shaikh
Shoeb Shaikh

So what does mean Idle thrust?

Vor 9 Tage
Jamie C
Jamie C

I find it strange the reverse air flow is more powerful than the thrust from combustion

Vor 14 Tage
tihi
tihi

I’d love to hear more about the different styles of reverse thrust and their efficiency

Vor 20 Tage
Leon Andres Rojas Martinez
Leon Andres Rojas Martinez

I think it should be more efficiente just to turn around the entire turbine, so you can apply full trust to reverse without damaging the blades. With today servomotors i think is not impossible to design the plane so the turbines can be reversed on land.

Vor 23 Tage
Russell Mansfield
Russell Mansfield

Informative but turn that annoying music off

Vor 24 Tage
Max Stallone
Max Stallone

Certainly a cure for herpes and other incurable diseases does exist with herbal cure doctorokooboh234@gmail.com.

Vor 26 Tage
Tuddec
Tuddec

Why can't you use 100% thrust with the reversers?

Vor 28 Tage
Jeffrey LaPuente
Jeffrey LaPuente

I wonder if its possible to land a 747 without the thrust reversers at St Maartin airport?

Vor Monat
ZK-APA
ZK-APA

Depends on the landing weight.

Vor Monat
Kerwin
Kerwin

When to use reverse trust? It’ll be cool to use it while flying, I wondering if the airplane can fly in reverse 😊

Vor Monat
dinga samte
dinga samte

Why am I watching this, I ain't even flying anymore in my life 😞

Vor Monat
Andrei Vinz Aguilar
Andrei Vinz Aguilar

captain joe what plane training pilot is using?

Vor Monat
ray Nic
ray Nic

I would assume that the list at 0:40 is actually prioritized in reverse.

Vor 2 Monate
Miguel Ángel López Sánchez
Miguel Ángel López Sánchez

More, Captain Joe. Concorde, DC-8, C-5 Galaxy, C-17, SAAB 37, they use reverse during flight. Why?

Vor 2 Monate
speedfreakpsycho
speedfreakpsycho

I hate that part, makes me so nervous.

Vor 2 Monate
Adrian Palacios
Adrian Palacios

Captain Joe, is it difficult to fly jet airliners, or do they handle with ease?

Vor 2 Monate
ZK-APA
ZK-APA

In terms of normal flying, even airliners behave like normal aeroplanes, but yes to handle all systems, there is a bit of complexity.

Vor Monat
Mankalaza Tsiry
Mankalaza Tsiry

Hi Captain Joe. I would like to know the minimum speed required in order to maintain an aircraft in the air. Thank you

Vor 2 Monate
inayathkhan mohammed
inayathkhan mohammed

Very useful/informative Video Captain Joe Sir 👍

Vor 2 Monate
Gowest4552
Gowest4552

Too much racket.

Vor 2 Monate
Big John
Big John

Drop the damn background music noise.

Vor 2 Monate
Basnet Sabal
Basnet Sabal

Can anyone just tell me why does the airbus a380 uses reverse thrust with only two engines? 🤔

Vor 3 Monate
Pranav Hebbar
Pranav Hebbar

Are you really pilot?

Vor 3 Monate
Conner Plays
Conner Plays

captain joe have you ever seen 24 gear?

Vor 3 Monate
MathiasCorvin
MathiasCorvin

very good explaination! very clear-thanks forupload !!!

Vor 3 Monate
wincav
wincav

Typically what % of the overall stopping effect do the reverse thrusters provide compared to braking and aerodynamic effects?

Vor 3 Monate
Banks Coleman
Banks Coleman

Is forward thrust still coming out of the compressor/exhaust when reverse thrust is activated? How much?

Vor 3 Monate
Banks Coleman
Banks Coleman

@ZK-APA i get the the bypass air from the fan is angled out of reverse thrusters...I'm talking about the air drives the combustion chamber /turbine. Is it still coming from the back when bypass air is being channeled forward from the reverser. Does that make sense?

Vor 2 Monate
ZK-APA
ZK-APA

It doesn't go through the compressor. Instead its angled out so the air is actually going around the exterior of the engine

Vor 3 Monate
Asha Raju
Asha Raju

Background music stop Pl.

Vor 3 Monate
Marzieana Ab Rahman
Marzieana Ab Rahman

Ok..I might re-explained to my daughter..i said the plane doesn't have reverse gear (my mistake)..thats why the plane needs the tug to do the pushback..starting from your video Cap. i just realized that plane have reverse thrust to do the reverse operation but prohibited during taxiing..good explanation..😃

Vor 3 Monate
Thomas Rose
Thomas Rose

Does turbo propellers have reverse thrust? (A400M)

Vor 3 Monate
john adams
john adams

Thank you.

Vor 3 Monate
rakesh meitei
rakesh meitei

Do pilots use reverse thrust during mid air too in some occasions?

Vor 3 Monate
chromarti
chromarti

This really confuses me: Deceleration is provided by change in momentum. But (in my mind at least) the maximum deceleration occurs when the engine blows the air it ingests in the opposite direction that it entered the engine, i.e. the change in momentum is zero and the deceleration is zero... How can an engine provide negative momentum when it is sucking-in air from the front?

Vor 4 Monate
ZK-APA
ZK-APA

In reverse thrust, the exhaust doesn't have to be thrown 180 degrees opposite. As long as it has a forward component, it will provide deceleration.

Vor 3 Monate
Tim You know
Tim You know

Can planes use reverse thrust to back themselves up

Vor 4 Monate
AimedAxe
AimedAxe

Something i learned today✔

Vor 4 Monate
slehar
slehar

Why is the air diverted slightly forward (135 degrees?) instead of fully forward (180 degrees)?

Vor 4 Monate
GreenFace Vault
GreenFace Vault

And here I thought reverse thrust is actually reversing the engine, not just the force 🙈

Vor 4 Monate
Nadav Frayman
Nadav Frayman

Can you show us how to start up a airbua a320

Vor 4 Monate
ip alerts
ip alerts

U r boring

Vor 4 Monate
FullThrottle
FullThrottle

U r too

Vor 3 Monate
VINCENT ANDREONZI
VINCENT ANDREONZI

Thanks so much for the explanation otherwise I was wondering the tabans opens while landing

Vor 5 Monate
gornoman
gornoman

I have experienced Reverse Thrust usage inflight coming into the Grand Junction Airport on a direct flight from Chicago ORD. The pilot came on and warned us he was going to do it as we dropped over the edge of the mesa on final. My guess is it was just idle reverse thrust, but we did see the shovels rotate out behind the engines. This was back in the late seventies, I have no idea of the aircraft type. Probably my third flight ever, that's why I remember it so well.

Vor 5 Monate
Gooner 72
Gooner 72

I love it when pilots do reverse thrust, the clamshell doors open and speed brakes and flaps are all up........ It's pretty cool.

Vor 5 Monate
Prithvi Sriman
Prithvi Sriman

till now I wondered if the fan in the engine rotates in the opposite direction 😂

Vor 5 Monate
Cash Only
Cash Only

Reverse thrust is when you're finished but your bae isn't

Vor 5 Monate
c21feelchannel
c21feelchannel

Is the primarly purpose of thrist reversers to disrupt the airflow over the wings and kill the lift to give the wheels more breaking authority?

Vor 5 Monate
ZK-APA
ZK-APA

@c21feelchannel Its not really a flat plate, but rather angled much forward. Remember, reverse thrust doesn't have to be 100% opposite to the direction of travel. it just needs to have a forward component. Something like if you have a wind 45 degrees from you, it'll still have a headwind component.

Vor 4 Monate
c21feelchannel
c21feelchannel

@ZK-APA I guess they act as flat plates deflecting the airflow at nearly 90 degrees to cause drag at high speeds. But wouldn't that also disturb the airflow over the wings for under-wing mounted engines?

Vor 4 Monate
ZK-APA
ZK-APA

Nope. It just gives a forward component of thrust ie drag.

Vor 4 Monate
N124AC
N124AC

On a Boeing, the little levers that engage the thrust reversers, you can actually vary the reverse thrust depending on how much h the e little levers are pulled back.

Vor 6 Monate
Hiro The Shiba
Hiro The Shiba

I only knew one name of the reverse thrust It was the clam shell

Vor 6 Monate
Akotski1338
Akotski1338

The first time I was on a plane, they applied reverse thrust after touchdown and I thought we were going around

Vor 6 Monate
Kumar Arnav -
Kumar Arnav -

But if a car reverser had been on this hunk of metal, congratulations, a pilot’s job is now difficult.

Vor 6 Monate
Bill
Bill

Hey Joe, you forgot to mention the squat switches on the U/C which prevent R/T being selected whilst flying. Of course there are exceptions to this safety measure. 😉

Vor 6 Monate
kumar great
kumar great

What happens when full reverse thrust is used in mid Air?

Vor 6 Monate
kumar great
kumar great

@Ethan's Aviation thanks man!

Vor 5 Monate
Ethan's Aviation
Ethan's Aviation

You would fall like a rock

Vor 5 Monate
ddneb
ddneb

is the REVERSE THRUST disabled during airborne?

Vor 6 Monate
NEWKNOWLEDGE
NEWKNOWLEDGE

So that implies that the output of the engine is far greater than the input ?? The input is sucking in air, and thus is pulling the plane forward, and the reverse output is blowing air out in the reverse direction, and thus is pushing the plane backwards. I'm so confused ??

Vor 7 Monate
Specs_fn
Specs_fn

I thought it makes the plane going back word

Vor 7 Monate
JI Ioannidis
JI Ioannidis

It would be a lot better if you didn't play that retarded music. What do you think it adds?

Vor 7 Monate
Ethan's Aviation
Ethan's Aviation

Or you could just go somewhere else

Vor 5 Monate
Ka Shing R. C
Ka Shing R. C

From what I can see the reversers are covering the Fan part of a turbofan engine, when the throttle increase again, does it increase the thrust inside the turbine? Which seems to increasing the forwarding thrust? Or, the throttle used for reverse thrust is by electric and the turbines are idle?

Vor 7 Monate
ZK-APA
ZK-APA

Ka Shing R. C basically what happens is the air which is going through the fan (ie the bypassed air) is rerouted so that instead of going backwards, it goes forwards, which creates the resistance.

Vor 7 Monate
Raptorman0909
Raptorman0909

If full reverse thrust is 70% of forward thrust does that mean the engine is operating at 70% or the net reverse thrust is 70% of full forward thrust? Assuming the engine is limited to 70% thrust then net reverse thrust would be less than 70% do to losses in the reverser system putting the total reverse thrust at, perhaps, 50% or even less. Can you clarify this?

Vor 7 Monate
Nol Houtman
Nol Houtman

Thanks man !

Vor 7 Monate
Dirk van den Berg
Dirk van den Berg

With reverse thrust I always assumed that somehow pulling those levers would make the engine reverse the airflow in its entirety, so sucking in air from behind the engine and blazing it forward. Now I see only parts of the outer layer are used to reverse the wind. So the thrustlevers are used to make the thrust go idle first, and then to extend the outer flaps just like on the wings.

Vor 7 Monate
Jackie Chan
Jackie Chan

Captain joe is cool

Vor 8 Monate
Nikolas Zisoudis
Nikolas Zisoudis

2016 ma boi

Vor 8 Monate
Achim S04
Achim S04

Hello Captain Joe, I think your explanations are very nice .. thank you very much. I have now bought the Microsoft Flight Simulator 2020 and can not handle the autopilot. When do I have to switch from NAV to ILS and finally to APR? Are there any exact rules?

Vor 8 Monate
crying freeman
crying freeman

Thumbs down for music... and that kmart watch. U should have a breitling, air king or at least a flighty 👎

Vor 8 Monate
Robot Man
Robot Man

awesome videos! But Please get a better microphone

Vor 8 Monate
Michael Polignano
Michael Polignano

I thought captains had four stripes

Vor 8 Monate
Nishan Riar
Nishan Riar

Captain joe? More like captain Joe mama Jk lol

Vor 8 Monate
Zane___ K
Zane___ K

Mentor pilot once said it was to keep the brakes cool....

Vor 8 Monate
Arun Rajendran
Arun Rajendran

Out of many pilots channel you are the best as far as i have seen. More knowledge and clarity in explanation.

Vor 8 Monate
gonzalo moreno andonaegui
gonzalo moreno andonaegui

How to calculate the minimum thrust needed for any aircraft in order to stay airborne and out of the stall speed ?

Vor 8 Monate
Wandell Passah
Wandell Passah

Yes mr Am it was same with me especially 20 years ago when old system had an old round. steel very dark in colour due to engine smoke of years of use i thought. part broke

Vor 9 Monate
Wandell Passah
Wandell Passah

Thank you friend My question how much percentage does reverse thrust play in braking the air craft to a halt

Vor 9 Monate
Gireesan Ppm
Gireesan Ppm

SUPER VIDEO

Vor 9 Monate
JOEGE
JOEGE

No one gonna ask why is the aspect ratio like that?

Vor 9 Monate
Ray X
Ray X

Is Captain Joe using "Love on a Real Train" from Risky Business as his music?

Vor 9 Monate
Jerry Gundecker
Jerry Gundecker

I wish I could have put reverse thrust on my wedding day. I would have landed a lot more smoothly in this world.

Vor 9 Monate
Jesus Christ
Jesus Christ

What is the net at the thrust reverser

Vor 9 Monate
LegalDogecoin
LegalDogecoin

So the vacuum cleaner becomes a fan.

Vor 9 Monate
Thomas Salois
Thomas Salois

And also prevents wear and tear on the on the wheel brakes

Vor 9 Monate
Venkat Gurram
Venkat Gurram

still didnt get it, Joe

Vor 9 Monate
Stephen Anderson
Stephen Anderson

Started working at an airport and see planes landing all the time, 757 767 777 Airbus 300/310 MD10 and MD11 and all of them I've seen have used reverse thrust and the sounds it makes is heaven, it's like taking off from a standstill but slowing down and it's so cool

Vor 10 Monate
Frank Peck
Frank Peck

Hello Captain Joe...Always very informative and interesting, watching your videos. Regarding the use of reverse thrust to back away from the terminal...I'm in agreement with you...not only because you're backing up blindly, but you'd think that much debris, would be blowing, and possibly causing serious injury, especially if hit in your eyes. Leave backing the aircraft to the Tug Operators...they're the experts, in that department! Thank you!🌴

Vor 10 Monate
HasseBrasse
HasseBrasse

This is why the tesla roadster will be so amazing

Vor 10 Monate
Lee Barros
Lee Barros

Tangerine Dream - Love on a Real Train (Background Music)

Vor 10 Monate
Jonna Rose Fresco
Jonna Rose Fresco

HEY everyone this cracks me up captain joes background is a white board hahahahahahaha.

Vor 11 Monate
Cyrix
Cyrix

It’s simple it’s tsurht esrever

Vor 11 Monate
amyi
amyi

Yeah i was sitting beside engine seat n while reverse thrust i thought the engine cover part has broken,,,seems silly😂

Vor 11 Monate
Don Dash
Don Dash

My first flight on a 737-200 had me wondering what was happening to the engine. It was strange but the rain on the runway made it clear what was happening.

Vor 10 Monate
David Nuttall
David Nuttall

2:50 Ah, the wonders of an aircraft-induced blizzard!

Vor 11 Monate
johnymarder Dixon
johnymarder Dixon

That was a brilliant explanation. THANKS. (frequent flyer and massive aviation fan)

Vor 11 Monate
sam nyc
sam nyc

https://youtu.be/GNRXAHasFvk

Vor 11 Monate
Saira Rafique
Saira Rafique

so just a hypothetical question as a layman. if the plane is about to hit anything? can reverse thrust help protect it? or maybe reduce the impact.

Vor 11 Monate
TheDosenbier
TheDosenbier

Hallo Captain Joe, Umkehrschub ist eine Sache die ich physikalisch einfach nicht verstehen kann. Ich war bisher der Auffassung, dass der Schub durch die Fans und zum Teil durch die Turbine erzeugt wird. Wenn sich die Fans durch die Luft schaufeln und der Luftstrom rückgelenkt wird, sollten sich nach einer Vektorgrafik die Schübe doch negieren? Zumal die Turbine ja in dem Fall immer noch Vorwärtsschub erzeugt, dann dürfte doch eigentlich keine rückwirkende Kraft existieren? Kannst du mir bitte in kurzen Worten sagen, wo mein Gedankenfehler liegt? LG

Vor 11 Monate
Sharifullah Muhammad
Sharifullah Muhammad

Love you Mr. Joe

Vor 11 Monate
Guessagain KK
Guessagain KK

Any commercial airliners uses Drogue parachute for emergency landing?

Vor 11 Monate
Murali Bhaskaran
Murali Bhaskaran

Please post a video on aircraft engine power settings for idle, breakaway, taxiing, take-off thrust. Also send by email to me the power settings of aircraft. vbm178616y@gmail.com. tnx. Murali

Vor 11 Monate
the occupier
the occupier

Dump the Fucking Music

Vor 11 Monate
Phil D
Phil D

What are wing mounted engines? And what is the other?

Vor year
DIDIER Debaere
DIDIER Debaere

Hello Joe, Can you explain in a video how the "Florence Kit" works (Upwards deflection of Ailerons) on the A319/320/321 Thank you

Vor year
Thomas Mortimore
Thomas Mortimore

The ‘Florence Kit’ is a set of modifications developed first on the A319 to improve landing performance at Florence airport in Italy. This kit is now also available on the A318. It consists of: • Using the ailerons as spoilers on the ground (upward deflection) to improve braking efficiency • Defining an alternate forward centre of gravity limit that enables decrease of the approach speed, thus improving the landing performance

Vor year
Random Thing CH
Random Thing CH

Is turboprop reverse thrust work same like this?

Vor year
Random Thing CH
Random Thing CH

@ZK-APA thx

Vor year
ZK-APA
ZK-APA

Random Gaming CH slightly different. In props the prop blade angle changes so that it pushes air in the opposite direction

Vor year
Sonam Sawant
Sonam Sawant

Sir make a video on types of Thrust reversals

Vor year
rollvideo
rollvideo

https://vm.tiktok.com/cNrXk9/

Vor year
taha muhammad
taha muhammad

I have a question in my mind that is really hard to search on the internet,How do you know when to switch frequency and to what?

Vor year
taha muhammad
taha muhammad

@MikeP bro thank you so much really appreciate the effort

Vor 11 Monate
MikeP
MikeP

Basically the air traffic is divided into departures, arrivals, and overflights. When aircraft move in and out of the certain airspace, they are handed off to the next appropriate control, and you will switch to that ATC frequency. This can be a control tower, an en-route control, or an approach control. Depending on where you are on your flight route (or if you are departing or approaching an airport) you will switch to frequency belonging to that relevant ATC service which is responsible for the flight at that time. The ATC also will give you instructions: for example the ATC can say: "Contact xxx Approach on 124.5" or "Contact xxx Center on 128.55" or "Contact Tower on 120.95".

Vor year
Bally46
Bally46

Did he just say "aerodynamical" ???

Vor year

Nächster

What if the reversers OPEN in flight?!

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