How HIGH CAN PLANES fly? What is the COFFIN CORNER? Explained by CAPTAIN JOE

[@Spooky4815]

SR-71 Blackbird has entered the chat.

[@zerenjin3999]

SR-71 Blackbird has entered the chat while escaping the Earth :)

[@vman66441]

U-2 aka "Dragon Lady" has also entered the chat.

[@Malfehzan]

AVRO Arrows lets out a yawn.

[@Justsomegamergamingandstuff]

X-15 has entered the chat

[@mrhoffame]

Ha ha!!! Indeed it has!!

[@mr.pianist3174]

Yes guys the legend is back.

[@astaksantyna5780]

But... He was always here... He didnt even take a break.

[@sergeykoshelev4566]

Legends never go.

[@747simmer4]

he never left

[@ccm2059]

He never left

[@phillyphill6871]

Legend?!! Yeah right

[@sailplanepilotfinn6179]

The 747-400's ceiling is actually 45100 feet. Pretty high! And your slow continuous climb took 40 minutes.

[@remainblessed6432]

Yes agree! One of our 747-400 the BCF recently flew from JNB to NBO at 45000 feet. I had never seen that before. But regularly at 43000 feet especially from EZE to UIO. Indeed 45000.

[@flywithcaptainjoe]

Well done Buddy!

[@jan-lukas]

@Aditya Shaligram the restriction by the manufacturer is always lower than what can be achieved, so if a pilot flies at 43000, he has a safety margin

[@Nussholzmobiliar]

so if i understand correctly there are 4 limits: 1. max height company/flightplan 2. max height atc/faa 3. max height manufacturer 4. physical max Right??

[@thecommunist8050]

@@flywithcaptainjoe can you please explain how to operate the radios and how they work etc.

[@kaiastley]

It took you 40 mins to complete the climb (hope that’s right, I’m a bit tired so it could be wrong)

[@teelve]

4 000 ft at 100 ft/min > 40 minutes

[@ralphvanthoff]

Check out the brains! Top of the class for sure.

[@Azmythometre]

@@ralphvanthoff *Matt Parker has entered the chat*

[@ammarwafiy8650]

"DEAR FRIENDS AND FOLLOWERS" never get old

[@pilotyaya8053]

Thanks

[@SS8747]

Ikr

[@andrinaa9887]

Welcome back... the ones that still know Captain Joe from his old videos... RESPECT🖤

[@flywithcaptainjoe]

Thanks Andrina :)

[@alphaadhito]

9:45 That's why pilots are carefull not to aproach the coffin corner in the first place U2 pilots: (chuckles) *I'm in danger*

[@bradleybatt1401]

lol

[@louisballany9778]

Would the climb take around 40 minutes?

[@reyker1144]

Thanks for this sir! Ive always dreamed of being a pilot (im 9)

[@jonkessler7824]

45,100ft service ceiling for the 747-400.

[@이주연-x4x]

Cheat code to avoid a mach dive: have a delta wing.

[@aarondowden4244]

Yea captain Joe, bring those high speed aerodynamics videos

[@SocialistDistancing]

Yes, I'd like to see/know how the engineers overcame the mach 1 drag.

[@PRodent]

I'd be interested in a video on the aerodynamics of high speed flight. The insight on the blanket of air around the control surfaces which prevents a pilot from recovering was interesting.

[@bryangomes5915]

Video Request - "Power Settings On Aircraft"

[@johnmorris7815]

If you mean do we apply a particular setting to achieve a speed? Then no, the air is far too fluid also weight and trim changes would prevent that working, however like cruise control in your car our autothrottle system will change power to provide a constant speed/Mach. The only exception to this is final approach where gear down, flap25, top hat (3 degrees NU) and 1.15 EPR would have you at VREF+5.

[@neth77]

MSFS: MAX POWAH!!

[@jan-lukas]

TOGA

[@justinredford]

please !!

[@johnmorris7815]

B747-400 with RR RB211 G rated at 50,000lbs from after start the engine will settle at Ground idle with the thrust levers closed. The next setting will be Take off power and this is where a video would help because it’s not as straightforward as it sounds, there are four options to take off power, they are: 1 Rated power, in my case 50,000lbs 2 Assumed temp reduced thrust 3 Derated thrust 1 4 Derated thrust 2 The top two are the ones we use most as we are either going a long way in a heavy aeroplane or we are going for a flight of say 8 hrs or less even if we’re full, then assumed temp thrust reduction is the norm. The last two are pretty much only used in contaminated conditions so not very often and it’s just to artificially lower the minimum control speeds in the event of an engine failure so that you can either stop with degraded braking performance or get airborne at a lower speed than usual. Because it’s not used very much, some companies ban its use. Next is Climb power and again 3 options depending on aircraft weight or obstacles in the flight path, they are: 1 Rated CLB power virtually the same as MAX continuous thrust. 2 CLB 1 a fixed reduction from TO power. 3 CLB 2 see above but more. The rest of the flight will be in speed mode as I said in my earlier comment with CLB mode used for Step climbs that Joe talked about. During descent a combination of flight idle (higher idle setting than ground idle to reduce spool up times) VS mode or VNAV which combines all of the above owing to it taking note of altitude restrictions on route particularly in terminal areas. After flap extension (can’t remember how much and can’t be arsed to look it up) approach idle comes into force again to reduce spool up times to almost nothing should you have to use idle to control speed. After landing it is mandatory to use at least revers idle, again a high idle to avoid compressor stall, as the reverse levers are moved to the idle gate, the reverse shrouds deploy and the REVS display turns green then anything up to Max reverse can be used, there is a detent which we call partial reverse that is approximately half thrust most normally used on shorter or contaminated runways, as speed reduces so should reverse in order to be idle reverse by 80kts. When the reverse levers are stowed ground idle is back in force until you reach the gate and shut down.

[@paulwright6934]

As a Boeing engineer I witnessed a 747-400 flight test where the airplane climbed above the maneuver limit altitude (where the amber bands came together) and continued climbing until rate of climb came to zero (slowly wobbling between 50 fpm up and down). The condition was very comfortable and just felt like normal cruise. It was fascinating to see the mighty 747 reach its performance limit. Thanks, Joe, for reminding me of this experience (and many others)!

[@pilotgrrl1]

Kennedy Steve always makes me smile.

[@ahmadkatoub525]

Me to!

[@babushka2231]

Hey captain Joe, I got a video idea, talk about all the lights/callouts related to failures or other emergencies

[@aviationaccount8726]

Hey Joe loving the video consistency recently. As always providing us this quality educational and entertaining content. Keep it up bro!✈️👍🏽👋🏾

[@flywithcaptainjoe]

The next 12 weeks are set :)

[@aviationaccount8726]

@@flywithcaptainjoe YESSSSS, looking forward to the videos! You’ve been a huge inspiration to me, thank you Captain Joe :))🙏🏽✈️

[@bcgrittner]

I remember the B-58’s causing sonic booms back in the 1960’s. The were designed to go supersonic. I rode a flight years ago that cruised at 41,000 feet. It was CAVU that day. That was some view up there.

[@sergeykoshelev4566]

Extraordinary looking plane. I wonder if any still preserved. It had to be kept just for art sake.

[@mikaelbiilmann6826]

Cool looking plane.

[@mccallfrank007]

Sure you where kid

[@neth77]

Did you know a commercial 747 and a DC-10 both went supersonic (by accident). No damage was found on the 747, the DC-10 had slight.

[@bcgrittner8076]

@@mccallfrank007 The flight Captain announced our cruising altitude as 41,000 and the flight data on the cabin video screens displayed that number. As I recall the plane was an airbus A-319. 41,000 feet is well below the service ceiling of that plane.

[@MrTchou]

The U2 spy plane was one of the plane with the smallest coffin corner less than 10kts, from STALL speed to MMO at cruise altitude.

[@yasine4781]

Boeing 747-400 F Maximum Operating Altitude : 45,100 Feet or approximately 13750 meter The time taken for the slow continuous climb that has been driven by Captain Joe and the auto pilot : 40 min or half an hour and 10 min All question are responded that has been given by Joe sir : ✔️ Record and stored this video on my brain 🧠 : ✔️ And my request pls don't say I am a Robot I am human like auto pilot 😂🤣

[@adder2523]

I was actually pretty curious about absolute ceiling and it seems to be 45,000 ft for 747-8. The information on this is really scarce and the only actual mention of absolute ceiling was on doc8643.com/aircraft/B748 , but like you said, I'm not by any means sure if this is an official number or not.

[@T-Dawg123a]

Probably the most interesting plane in regards to the so called coffin corner is the Lockheed U 2. It can fly at 70,000 feet but, at that height the difference between the never-exceed speed and stall speed is 12 mph or 10 knots. Sounds challenging even before considering you need to wear a spacesuit to fly (and potentially eject) at that altitude.

[@speedbird1256]

Flight level 320 to fl360 32,000 ft to 36,000 ft 4000 ft climb Rate of climb- 100 ft per minute 4000/100= 40 minutes It took you 40 minutes to climb to that flight level

[@ForFunFlyer]

Nice one, Joe! Yes, would love to learn more about high speed aerodynamics! 👍🏻

[@ForFunFlyer]

... but then again, I'm a sucker for all aeronautical physics 😉

[@OfficialDoggyYT]

I hope one day this legend here will get 4 lines and become a captain. truely deserved but ye, maybe he have to wait a bit more time before that happens

[@DecidelyUnethical]

AFAIK Joe attained Captain before when he flew for Airberlin, but he went back to being FO after he went to Cargolux. Man's got about 5k hours on the A320 family though so he's absolutely experienced enough. Company seniority's a bitch, but it is what it is.

[@boosti_alex1428]

I never learned about the coffin corner in my commercial ground school. Glad it was finally explained to me.

[@flywithcaptainjoe]

More detailed video coming!

[@davecardboard9567]

If a pilot finds themselves in coffin corner, how do they escape from it (without breaking the aircraft, stalling or dying?)

[@DavidOfWhitehills]

So, you cannot recover from a machdive/machtuck even if you cut the engine thrust to minimum? Does the dive just get steeper and steeper? Scary. So would that rip the wings off?

[@barrel6468]

FL320 to FL360 climb at 100FPM would have been approximately 40 minutes

[@aarchitshinde1268]

Question: How Concorde manages to overcome MACH still being an airline aircraft

[@15Med3]

aerodynamics and afterburner

[@norbertfleck812]

Delta wings and a shockwave adopted outline (sharp wing leading edges, pointy nose etc.)

[@oscarlamprecht1978]

Well explained as always :) Thanks for the effort! (PS: The climb took you 40 minutes. 4000ft/100ft/min= 40min)

[@HarshikaKhanna]

Sir I'm 12 years old and it's my dream to become a pilot. Your videos give me an inspiration to follow my passion and I promise that I'll study so hard and will become a successful pilot one day ❤️... I just find it so fascinating to be a pilot as Ive always had this curiousity about commercial planes and pilot... Sending you lots of best wishes From india ❤️🥰🙏

[@piyushkanthak1087]

I also want to become pilot..I am from India

[@strawberryj7186]

I just can never get over the fact planes exist! its crazy haha heavy af big massive bird can just glide through the sky full of people lol we are so smart

[@Glen.Danielsen]

Absolutely fascinating. Joe is incomparable! 💛🙏🏼

[@ThePoisond]

Would love to hear about high speed aircraft, especially how they navigate in spaces that commercial airplanes won't!

[@therealaviationnathan]

747-400F can fly at 45,100 ft. The 747-8f's absolute ceiling is 43,000

[@wellingtonaviationchannel634]

No thats the 8fs service ceiling

[@masonmccann5318]

You amaze me every time you post!! Keep up the great work! 🤙✈️

[@wvusciguy]

There are some interesting documentaries about the U2 operating very close to coffin corner

[@brianhiles8164]

(03:13) _Emergency bank left!_ ( _I´m giving it all she´s got, Captain!_ )

[@binzy9659]

Great vid one again joe. Keep up the good work buddy😁😉

[@15Med3]

SR-71 Blackbird and U-2 Dragon looking down at all these aircraft...."they look so small from up here" also...the blackbird got more efficient the faster it flew due to the RAM jet

[@nikitagolban3906]

HELLO FELLOW EARLY GANG Aka: subscribers :)

[@wesleymunene2485]

joe you are my role model seing you is my dream and im hoping to achieve it am just a little boy with a dream i hope you get this

[@chanute4041]

Hi Captain Joe! I always love watching your videos, as I’m a student pilot and I plan to get a degree in aerospace engineering. Even though I’m at the PPL level I still love to learn about topics more relevant to commercial/ATPL ratings since I think it gives me a better understanding of aviation as a whole and helps my flying. I’ve always been interested in supersonic flight and I’d love to watch a video about how flight dynamics change In the transonic and supersonic range. I’ve also always wanted a good explanation of why hypersonic and supersonic are referred to separately. I’ve heard that at hypersonic speeds the air along the leading edges of the aircraft can chemically decompose and cause aerodynamic issues but I’ve never understood it well.

[@johnfitzpatrick2469]

G,day Captain Joe from Sydney, Australia. Q1. 747 performance FL320 -360. @100 ft per min 4000 ft to climb = 40mins It took me quite some time deduce that answer. Nevertheless, great instructional with new terminology. Appreciation, thanks 🌏🇭🇲

[@mdc048]

Me: sees the title *coffin* My brain: starts playing the coffin meme song

[@susanosborne8641]

Same

[@OfficialDoggyYT]

the max altitude of a Boeing 747-400F, arround 45 000 to 46 000. atleast I think it is, correct me if it isnt int he comments.

[@MrTtyl554]

Waiting for that “high speed aerodynamic” video

[@stargazer2504]

I feel like, in 2021, the only danger should be maybe the coffin corner. Other than that, the flight computers should keep the speeds safe. Otherwise, let's just go back to the 1970's.....

[@hueyrosayaga]

6:43 Rules can't stop me, I climbed to 2,800,000,000 feet in FSX once!

[@andrewmurray1550]

Ha ha. 2,800,000 000 (are you sure that's right....) That's twice the distance of the moon from earth.... 2,800,000,000 ft = 530,303.0303 miles, more than twice the distance of the moon to earth. (The moon is only ~238,855 miles from earth (on average). In reality, the upper limits of the earth's atmosphere is about 47,520 ft. (that coffin corner thing....).....Unless of course you're Maverick in Top Gun, he'll try anything.

[@StinkyScript]

welcome to steam edition

[@chesstrickswithbjc3146]

➡️ The maximum altitude of Boeing 747-400F 41000 feet . ➡️ Boeing 747/8F ceiling43,000 ft (13,000 m)

[@stealthtomcat4739]

Service ceiling of 45,000 feet is pretty impressive for a commercial plane. As most fighter planes have service ceiling of 50,000 feet.

[@johnp139]

Or 60,000

[@stealthtomcat4739]

@@johnp139 Yes like in f-15

[@fieldlab4]

The flight envelope of the SR-71 from the original flight manual has been posted online. It's extremely narrow. It is prevented from going supersonic below about 25,000 ft. due to aerodynamic stress. On the other hand is prevented from GOING SUBSONIC above 40,000 ft, and can't exceed Mach 2 below about 50,000.

[@Phanuel-Peace]

How was concorde able to operate in such extreme limits

[@stonent]

Wing characteristics (delta shape), supersonic engines, afterburners, and being a relatively thin plane all helped it do some amazing things with height and speed.

[@SuperFlyCH]

Wind resistance goes up exponentially as speed increases and in order to fly the speeds that concord needed to fly and still maintain a respectable fuel range, they needed the air to be as thin as possible, hence the high altitudes. The rest of the plane was then designed to fly at those altitudes.

[@neth77]

Moving faster means you can fly in thinner air and still get lift.

[@XTR_NEELAN]

She is faster rider than anyone

[@wrightmf]

@@stonent and a lot of money from British and French govt

[@crystals5132]

If you go from flight level 320 to flight level 360 that gives a total climb of 4000 feet and with a climb rate of 100 ft/min the equation looks like this: 4000/100=40. This means that it took you 40 minutes to do a slow continuous climb from fl 320 to fl 360 :)

[@ThePulmentinum]

Is there a maximum flight level ATC can clear you to? Or as long as you are within the limitations of your plane you can be cleared as high as you'd like?

[@EinChris75]

4:11 I wonder if I should feel relaxed when I see that the good old unix tool a2ps is used to create the printouts of the flight plans or if I get the impression that flight security relies on 40 y/o tools.

[@Kojan5876]

4:59 It took you 40 minutes to do the slow continuous climb?....

[@andersongeorge4653]

*Joe u took 40min to get from fL320 until fL360* !!

[@KoenvanderKouwe]

I hoped you would explain hou to get out of the coffin corner. Reduce power to the engines maybe?

[@geofs_yt_pursuer6976]

I think the best solution is to not even try to approach the coffin corner?😂

[@KoenvanderKouwe]

@@geofs_yt_pursuer6976 yes off course! But that’s not the answer to my question is it? He said do not climb because of stall and do not descend because of increasing airspeed. So what do you do?

[@TheOwenMajor]

@@KoenvanderKouwe You descend at a constant speed by reducing thrust accordingly. With an autopilot with autothrottles, it isn't hard to do.

[@KoenvanderKouwe]

@@TheOwenMajor Thanks Owen

[@geofs_yt_pursuer6976]

@@TheOwenMajor yeap. controlled descent.

[@missionaviation2907]

Isn't the the rate of climb 100fpm at the service ceiling ??

[@TheRealEnglishTeacher]

4:58 - The answer is 40 minutes.

[@tedferkin]

I know it has nothing to do with airliners. But it might have been worth mentioning that the U-2 spy plane, due to it's extreme altitude flying, actually cruised in a "Coffin corner" state. This was one of the reasons only the best pilots were used, it also meant that they were very vunerable to SAM, as they had very little ability to maneuver. In fact they put them in this situation because they thought they flew too high to be affected by SAMs, and believed it was safer to be above the effective altitude of the AA missiles than be able to dodge them at lower altitudes.

[@beedified4894]

Captain Joe Squad!🔥🤟

[@FlyGuy1]

It took 40 minutes approx to climb from FL320 to FL360

[@Dr_Lad]

*I was pondering over this question last week...*

[@BaggioVL15]

Captain, the audio quality really sucks, I'm not the one to judge you, I've just written this comment and switched to another video.

[@luiscota1039]

I need a job, I have applied to my nearby airport but they never call me even when they need workers :(

[@Alexander_l322]

Maybe you need to try again by re applying with them.

[@Alexander_l322]

@Great playz gaming loser

[@Turbo_S_Em_funf]

@Great playz gaming Stupid fool

[@Turbo_S_Em_funf]

Understood. I take back the term I addressed you with. I thought you mocked the person in need of a job because it sure seemed like it. I guess it's all a huge misunderstanding then. My sincere apologies for that.

[@Flywithhamdan]

@captainjoe It will take you 40 min to climb from FL320 to FL360 at 100ft/min climb rate

[@dibdab0]

6:35 Beautiful engine/wing shot 😍

[@sudhanwankumar2269]

5:06 40 mins 36000-3200=4000ft required to climb 1 min=100ft x min=4000ft 100x=4000(cross multiply) x=4000/100 =40

[@TheAviationChannel]

9:22 *My first officer Joe hit the coffin corner of this voice there*

[@TheAviationChannel]

@tester123532456 Of course I wasn't using standard English here. I'll change it then. 😅

[@GeordieBoy69]

@@TheAviationChannel at least you got his proper title right. 😂😂😂

[@elishajenkins6436]

It took between 5-7 hours to clime in you slow continuous climb !!

[@justayoutuber1906]

We bought my grandpa's casket at the Coffin Corner. They have great prices.

[@Shabon67]

Oooh jealous. I tried to get an authentic CC casket for my grandpa, but in the end it was just a mach-off.

[@veronikaannakovacs]

As an air traffic controller I just wonder, with 100ft/min climb, there has to be no opposit traffic for 20 minutes. 😅 At night maybe. Love your videos!

[@tayet6875]

That Kennedy Steve Intro tho!

[@SandaruHettiarachchi]

If the Service Ceiling is 43100ft then why does the autopilot allows you to select a flight level more than that as shown in the footage.

[@nightSkyacc]

First officer Joe 😎😎

[@GeordieBoy69]

Correct. Def not a captain hence 3 stripes.

[@Angel_Underscore]

That mach tuck thing is terrifying, you might as well be a passenger when the control surfaces stop working.

[@ericimi]

Guess my stocks are not a plane because they went straight to the moon .

[@gooner72]

The engines are the key here, the clever engines on the SR-71 allowed it to climb and fly at such an unbelievable altitude. 747-8 is just over 43,100 feet, Highest flying commercial aircraft was Concorde at 60,000 feet. Highest EVER was the SR-71 at a mind boggling "over 90,000" which means it's still confidential unfortunately.

[@stanislavguretskiy7022]

Also, I think it`s called "coffin corner" because of the shape of the graph( this curve and peak reminds the edge of the coffin) which illustrates relation of speed and altitude P.s. I lost my job as a commercial pilot because of the virus, it`s really shocking for me. But I really hope, the situation will recover)

[@CombatIneffective]

It took you 40 minutes to reach the top of the slow climb from 320 to 360 at 100 ft per minute.

[@lindah6954]

And when you get up there, don't try coming down too fast. The plane can decent at over 700 knots.

[@martyb7554]

When a plane stalls at a High altitude, do the passengers feel it fall is if in an elivator? i am thinking of the Air France accident

[@hariseldon2450]

Very good question! Air France 447 stalled and fell from 38000 feet in 3.18 minutes! I wonder if the passengers were aware of what happened? I still can't understand how they managed to crash that Airbus!

[@jurgenkreibich2149]

I can confirm the outstanding performance of a B747-400! We started our flight in Frankfurt in December 1997 heading to Bangkok. The route we flew was over Moskow (we booked a flight to Thailand???) through half of Russia reaching a top speed because of the Jet Stream to 1230km/h for really some hours and the pilots ascended then to 43000ft 1500km before arriving to Bangkok. Great experience to fly 13100m above the earth with this speed! I'll always remember this flight! Sadly I don't have any photos from the inflight entertainmaint showing this experience...

[@atharv_savarkar]

Please make a video on electric planes for pilot training (flying schools which have these)

[@CheddaChief]

747-400F max certified operating ALTITUDE 45,100.

[@smk4902]

Finally someone explaining what a coffin corner is in simple terms.

[@adwiktrm7249]

It took 40 mins to complete the climb and the 747-400F i think is 45100 feet

[@Genshi54697]

Captain Joe- How high can planes fly Me- It depends on the pilot 😂 Jokes a side it depends on the air if you go higher in altitude the air gets thinner thus there is a point that the engine dont get enough air for thrust in the air and can't go above that point I HOPE THIS IS RIGHT CAPTAIN JOE I HOPE YOU SEE THIS COMMENT🙏

[@Genshi54697]

Now obviously I don't know everything about aviation because a good pilot is always learning ☺️😊 BTW I AM 13 ONLY😀

[@sagarthik1085]

Please make these kind of technical stuff from the field of aerodynamics and propulsion

[@coolname545]

I'm 2:55 in, so far two engagements for commenting as well as two merch plugs. In my humble opinion, this is a bit much tbh.

[@jannikbelz4002]

My class and me are studying for the exam in Braunschweig, can you make a video about INS & IRS, we all think it's a difficult topic.

[@lordplaton4065]

l am very impressed and interested of your high calcification in your job, you hipnotizeze every body with your presentation, l learning much about the plaine how they works and fly, but l have a question wich burning my brane the last 60 years; ls the earth flat or not????? l weithing for your profesional anser and l don't accepted liars

[@AlexFoxthrot]

No, it is not.

[@quistsciencestation]

Sir, just curious; what altitude was the Virgin Galactic HSPJ proposed to fly at? At age 11 and aviation and space is my passion. You might be getting more questions from me! :)

[@ChrisZoomER]

The highest I’ve flown was in a fully loaded 777-300ER at 41,000 feet. Fun fact: the bigger an airliner is, the higher it’ll typically fly.

[@Gsoda35]

Fly too high and you might hit the ceiling and knock out the big lightbulb and get lost in the dark.

[@EKC2024]

As always! Love your videos, and rule Concorde!🇬🇧✈️

[@SiddhantRKadam]

Video request... Aerodynamics of high speed flight

[@Mooza1]

Comment below if you want me to comment below so that I can comment below and comment below. Comment below.