WHAT DO YOU DO if your FLAPS DON'T EXTEND??? Explained by Captain Joe
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Welcome to our in-depth exploration of the Boeing 747's flaps system and its backup options. In this video, we delve into the intricate workings of one of the most iconic aircraft in aviation history.
The Boeing 747's flaps play a critical role in ensuring safe takeoffs and landings, providing additional lift and drag reduction during various phases of flight. However, like any complex system, backups are essential to ensure safety in the event of a failure.
We discuss the primary flaps system of the Boeing 747 and then delve into its secondary mode, which serves as a backup in case of primary system malfunction. Understanding how this secondary mode functions is crucial for pilots and aviation enthusiasts alike.
Moreover, we explore the alternate mode of the flaps system, another layer of redundancy designed to maintain control and safety in unforeseen circumstances. Delving into these backup options offers valuable insights into the engineering marvel that is the Boeing 747.
Whether you're a seasoned pilot, an aviation enthusiast, or simply curious about the inner workings of aircraft systems, this video provides a comprehensive overview of the Boeing 747's flaps system and its backup options.
Your "Captain" Joe
Intro Song:
Lounge - Ehrling: www.youtube.com/watch?v=a5ImN...
Outro Song:
Joakim Karud & Dyalla - Wish you were here www.youtube.com/watch?v=UXrxB...
ALL COPYRIGHTS TO THIS VIDEO ARE OWNED BY FLYWITHCAPTAINJOE.COM ANY COPYING OR ILLEGALLY DOWNLOADING AND PUBLISHING ON OTHER PLATFORMS WILL FOLLOW LEGAL CONSEQUENCES
@CMW__ Місяць тому
Glad you’re back Captain Joe!
@flywithcaptainjoe Місяць тому
Thanks buddy! Had to take a break from it all. But have a great line of videos coming :)
@mickeysmiths Місяць тому
@@flywithcaptainjoe When MH370 was gliding to the surface of the ocean with the captain controlling it in the cockpit, & only RAT power available (but batteries too), at which point (e.g. 10,000ft) would he have tried to set the wings' flight surfaces (via the centre electrical system) to slow the plane as best he could for the ditching? Would the available flight surfaces take longer to set, due to being on the secondary power grid? I think he was aware of the slowness of the secondary power grid as he would have simmed it, so he was prepared for the delay to set those surfaces. What do you think? Thanks
@jimboberington Місяць тому
Wow!! Two Captain Joe uploads within a week!!
@flywithcaptainjoe Місяць тому
More to come!
@salvadoroliveira6632 Місяць тому
Joe, I'm a retired ATCO and I want you to know and spread this warning to pilots who you know that fly to Brazil: in June, some idiots build and release huge hot air balloons, mainly in the southeastern region of Brazil. You should ask for the main aeronautical authorities to contact INFRAERO for example, to discuss what can be done to prevent accidents that are " waiting to happen ". Sometimes even 16 kg steel butane containers are connected to said ballons. Be advised!
@CerberusTenshi Місяць тому
There were incidents before, with planes hitting those baloons and get entangled. I saw some pictures of that.
@PrajjalakChattopadhyay Місяць тому
I think it should be treated as a criminal offence to send entire butane cylinders up there.
@jblyon2 Місяць тому
As someone who works in IT, I would love if our systems had a 'screw you, screw your failures, just do it anyway!' override switch
@cruisinguy6024 Місяць тому
It reminds me of the “battle short” setting on some military equipment such as generators, basically it will disregard all faults / warnings and run until it’s out of fuel / seizes / whatever.
@Pies. Місяць тому
we've been waiting for this! Welcom back!
@fZionists78 Місяць тому
That neon light is brilliant. Of course the explanation is, too.
@flywithcaptainjoe Місяць тому
Gift from my girlfriend :)
@georgelamprinos2960 Місяць тому
CAPTAIN JOE!!!! Thanks so much for posting these. I'm not a pilot, just fascinated with flight. I thoroughly enjoy how you can take such a highly technical subject and explain it so anyone with a basic education can understand it. That's the sign of someone who mastered their craft. All the best!
@flywithcaptainjoe Місяць тому
Very happy to hear that, thanks!
@Turbomax4247 Місяць тому
That’s glad to hear, I’m also a teenager who aspires to become an aeronautical engineer the 787 production plant in Charleston. By listening to Captain Joe, I feel more connected and proud of my goal that will surely become reality one day
@elcastorgrande Місяць тому
Great to have you back, Captain Joe!
@Choleh22 Місяць тому
Glad you’re back Captain !
@hazelb7218 Місяць тому
Good to see you back Captain Joe x
@craigguinn5423 Місяць тому
I was a passenger on a 57 which had right flaps extend but not left. Pilot tried three times. Plane listed pretty significantly. We were in the vicinity of JFK’s 13k runway, so declared an emergency and landed at 250k if I recall, very long rollout. Trucks rolled but no fires. We were watched for a fire on a taxiway. It’s been 20 years, but I think my recollection is close.
@guimaraes418 Місяць тому
Always learning, tks Mr. Joe!
@B747-4OO Місяць тому
Excellent information! 😎 Looking forward to part three!! 👍
@flywithcaptainjoe Місяць тому
Coming soon!
@ImperrfectStranger Місяць тому
2:50 Joe, there is no asymmetry protection on the LE flaps. By the time the FCUs have detected a LE flap group not reaching the commanded position, say the LH group A flaps, the RH group A flaps will have already extended pneumatically. Only uncommanded motion cause the FCUs to react quickly (0.3 seconds). In flight, the switchover time to electrics in the air for extension is 35 seconds (25 seconds for retraction). The aircraft can handle LE flap asymmetry. I've seen other UKposts videos claiming asymmetry protection, but the Boeing Maintenance Manual disagrees. The Maintenance Manual even states that the 4 LE groups operate independently in primary pnuematic and primary electric. Ref: 27-10-00 pages 10~12. Note that the Boeing Maintenance Manual does not use the expression "secondary".
@flywithcaptainjoe Місяць тому
Thanks buddy! I will ask my maintenance boys! But thanks for the heads up
@user-gn2wp8wp2i Місяць тому
@@flywithcaptainjoedemand explanation from maintenance lower class individuals. You are above them. They are subservient to you. Aircraft maintenance is very very low class. Pilots are extremely high class.
@ImperrfectStranger Місяць тому
@@user-gn2wp8wp2iAnd a retired engineer is even lower class 🤪The engineering comeback is "You can teach a monkey to ride a bicycle, but you can't teach it to fix one"
@ImperrfectStranger Місяць тому
@@flywithcaptainjoeOf course, Boeing Maintenance Manuals have been known to be wrong or ambiguous. I looked at the Boeing wiring diagrams and independent electrical control of Left and Right wing group A flaps (and Left and Right wing group B flaps) is not possible. There is a single control ouput pin on each FCU to the left and right group B drive motors (2). There is another single control ouput pin on each FCU to the left and right group A motors (6). Well, there are multiple relays between the output pins and the drive motors, so it is possible that a relay could fail in Primary Electric mode (your Secondary Electric mode) and cause asymmetry in the same group. However, there is still no real asymmetry protection on the LE flaps. Boeing manual quote: "5 (c): If a the FCU sets a disagree while a flap group is in primary electric, the FCU will continue to energize the electric motors, even though there may be no flap movement. (d) The times (sic) delays for the FCU to set a disagree are: ..... 3) LE Pneumatic: Extend: 35 sec in air, 15 sec on ground Retract: 25 sec in air, 15 sec on ground 4) Extend: 135 sec, or 5 sec to leave retracted position on ground Retract: 135 sec" Clearly, this is not going to stop asymmetry in LE Primary Pneumatic or Electric. Note that there may be further time delays on the messages appearing on EICAS.
@joeds3775 Місяць тому
@@user-gn2wp8wp2i you're a total knobber if that's how you treat and think of people. The sort of plot that gets people killed.
@jitx2797 Місяць тому
Wow youtube recommended your video after a very long time like after a year...glad to see
@ksteak27 Місяць тому
Good to see some new uploads, Captain!
@flywithcaptainjoe Місяць тому
Thanks buddy! I know it's been a while
@LuxPlanes Місяць тому
very interesting video Joe! :) also those flight simulator shots of LX-JCV are absolutely gorgeous!!! looking forward for the part 3
@HxTurtle Місяць тому
wait, you've a cargo department?!
@LuxPlanes Місяць тому
@@HxTurtleno, the names Cargolux and LuxPlanes just contain “Lux” in reference to the country “Luxembourg”. We are not affiliated with each other in any way. Hope that clarifies it :)
@flywithcaptainjoe Місяць тому
Thanks Ryan, hope to see you soon!
@HxTurtle Місяць тому
@@LuxPlanes yes it does! thank you very much! 😊 I honestly assumed so and just wanted to play a tiny bit with you since the company Joe's flying for sounds so similar 😅
@markcourtney7251 Місяць тому
Just had an experience of no flaps on a flight to Lanzarote with TUI, pilots had to land with no flaps as a single sensor failed! Came in hot!
@mintmallow4503 Місяць тому
Missed you Joe!, İt’s so nice to see you again❤
@gonetoearth2588 Місяць тому
Great to see you back! Wonderful explanation of the systems....would love more system videos about the Queen! Danke!!
@flywithcaptainjoe Місяць тому
Stay tuned. Working on them right now :)
@AleqsandreTotadze-pm8xl Місяць тому
Today my lecturer explained flight controls, very helpful, thanks joe❤️🫡
@largo6644 Місяць тому
Flaps assimetry is very dangerous. I feel better now that I learned all the mechanical and electonics protections against this nightmare.
@greentravels2850 Місяць тому
Not information I personally will ever need to know, I'm not a pilot. But it was still an interesting video to hear about the alternate and redundant systems involved on a technical level.
@kallmitchel3586 Місяць тому
Good Morning,Captain Joe! What better than wake in the morning and watch the most favorite subject(Aviation)presented and explained so successfully,by the most favorite and technically qualifed instructor!! welcome back sir,Best wishes,and Always Beatiful and Safe tavels!!! Always awaiting eagerly for more posts to come!!!Thank you!!!✈️👍
@flywithcaptainjoe Місяць тому
Thanks buddy! That means a lot!
@user-uh8ct3ys8l Місяць тому
Thank you Captain Joe
@peterredfern1174 Місяць тому
Great report mate,safe flights,🙏🙏👋👋👍🇦🇺
@cbwplanespotting2599 Місяць тому
Great video. Very informative as usual.
@LeulMengistu-td7zt Місяць тому
We need more
@flywithcaptainjoe Місяць тому
In the making!
@milk-it Місяць тому
These explanatory videos are very well done and sorely missed! Bitte mehr hochladen!
@mahmudinuwa3896 Місяць тому
Good one Captain
@user-js4wk2er6i Місяць тому
Снова рада тебя видеть здесь красавчик Джо. Обожаю смотреть твое видео. Береги себя капитан Джо!! Удачи и всего наилучшего!! ❤❤❤❤❤
@user-wg1hw5kj2o Місяць тому
I liked the video before waitching it😂😂 this implies that I believe all the info to be obtained here,,,,, big up Capt.Joe 🇹🇿
@Boodieman72 Місяць тому
I thought the movable part on the front of the wing was called a Slat. If all systems fail you can always do a no flap landing, just need a very long runway
@ZK-APA Місяць тому
Both are different. If the device re-energises the boundary layer, those are slats. And if the device increases the camber, then those are leading edge flaps.
@flywithcaptainjoe Місяць тому
On the A320 they are called slats, on the 747 they are called "Leading Edge Flaps". Same same but different ;)
@gladyslopezmurillo6170 Місяць тому
Ecxelente vídeo
@Jupiter12.000 Місяць тому
Intersting Video Joe
@PhilippusCesena Місяць тому
Great!
@seanmcerlean 11 днів тому
Excellent
@E-Techniker Місяць тому
Very brilliant video. Interesting is, that there are so much redundancies in the plane and additional backup backup system if all 3 FCUs fails. I didn't know that there are 3 different drives types (pneumatic, hydraulic and electric) only for flaps. Love this type of videos. Please continue! Maybe some videos of an A380 would be great 😍
@josephleondlovu490 Місяць тому
Awesome to have you back, when are you doing the video on the pedals
@PRCOM Місяць тому
Great to see you back Cpt Joe hope your doing well. It's bit ironic as last we we done a overhaul on a Polar cargo queen of the air and replaced her Krueger Flaps. Will have to get a beer when ur next in Glasgow
@flywithcaptainjoe Місяць тому
Man, what would I give to have a Krueger Flap and make a coffee table out of it ;) Especially the flat and straight ones near the wing root :)
@PRCOM Місяць тому
@flywithcaptainjoe I'll keep my eye out as there are a few for scrap. If I can get hold of one I'll give u a shout
@zlm001 Місяць тому
Finally! I’ve been waiting for this for ages and I gave up fruitlessly asking for the 747 flaps video. They are possibly my favorite flaps of all time. Please don’t this to me again. Either don’t tease or one month delay max.
@flywithcaptainjoe Місяць тому
Yes that 747 Flaps are one of a kind :)
@cseblivestreaming8073 Місяць тому
Flaps Assymetry Protection, or FAP
@jimmyrosen9424 Місяць тому
Drop a blue tablet in the fuel. Works for me!. Sometimes, my "flap" won't extend.
@kenbrown2808 Місяць тому
and if that doesn't work, ask for the runway they used in that fast and furious movie.
@Lunarpollo5622 Місяць тому
Threaten the flaps with a firm voice.
@andy70d35 Місяць тому
So glad this is Captain Joe, channel, and not Captain Josephine. That title could get you banned.😉 It's only a joke, folk.
@flywithcaptainjoe Місяць тому
Good one ;)
@abcdefgh6121 Місяць тому
4:35 I am currently using that software to try to land a fully loaded a320, with all the assists, for a year ( I only take care of the speed, flare and breaking and not of any other avionics) Well, we gotta start from somewhere!! 😁
@peterloffler7087 Місяць тому
Great explanation! Having worked on the Airbus A350 flaps myself, I notice some important differences to Boeing. Captain Joe, could you please make a video on that, it would be very interesting! (I won't comment on details of these differences - my information is confidential.)
@mukhammadkomilov7896 Місяць тому
Hell yeah
@Ztbmrc1 Місяць тому
Very interesting. Looking forward to the next episode. Btw do you also have a CargoLux model in the actual grey levery for sale?
@LindaHurley-qm7uk Місяць тому
Welcome back good looking
@MaltaMcMurchy Місяць тому
If my flaps fail, I will be calling my personal hero, Captain Joe! 🌠
@scripteddev_ Місяць тому
Epic
@HxTurtle Місяць тому
I think you should upload this video to a secondary channel just in case something goes wrong 😂
@flywithcaptainjoe Місяць тому
Good one ;)
@ThePeyton301 Місяць тому
Flaps control popped up on me in the sim one day. Haha I spazzed a little bit and just began to use my spoilers😬
@lajya01 Місяць тому
I thought the video would be about what happens when everything fails and the flaps remain up no matter what...
@HxTurtle Місяць тому
that I thought as well, lol.
@jangelbrich7056 Місяць тому
Do they abbreviate the "Flap Assymmetry Protection" to "FAP"? SCNR - great video as always
@dmorga1 Місяць тому
Thank you, Joe, but where is Part 1? It's not posted and no link in the video. . .
@flywithcaptainjoe Місяць тому
Checking that! The video definitely exists ;)
@aaronvaarwater4601 Місяць тому
So in the last scenario: would the outer TE flaps extent beyond the 25 degree setting, if you keep extending to get the inner TE flaps to that setting? Would you have to retract everything first to get all the TE flaps on the same setting at the same time?
@MrRoboticBrain Місяць тому
How would you deal with flap asymmetries in alternate mode?
@anzakaleem7932 Місяць тому
I think one more point is that the food made in vertical farms and greenhouses are tasteless. The German and Dutch greenhouses produce a lot of tomatoes and onions and potatoes but they are just plane bland. A lot of flesh and looks but insanely bad to eat.
@amitnegi7776 2 дні тому
Hi captain, when alternate flap is selected, do we have “ to low flap “ advisory during finals
@galaxiedance3135 Місяць тому
I would hope that all Pilots have Subscribed to you so that incase of an emergency.. they can quickly refer to one of your videos and land safely!!
@bankerdave888 Місяць тому
I wonder why for the B747, the leading edges retract immediately after touch down, but then they extend again. Seems unnecessary to me. What do you say?
@flywithcaptainjoe Місяць тому
Protection against debris from thrust reverser!
@mickeysmiths Місяць тому
Very interesting. I'm wondering about the flap situation with MH370 as power was provided only by the RAT (after fuel exhaustion) as the plane descended in a glide to ditch on the sea. Thanks
@pinchy08 Місяць тому
Hi Joe. I have an interesting subject you should do for a future video. Why some planes have APU and why some planes don’t. Also why some planes need APU and some planes don’t need APU. Sound interesting enough?
@flywithcaptainjoe Місяць тому
Can you list the planes that don't have an APU?
@pinchy08 22 дні тому
As I’m realizing only passenger jetliners have APU. However some aircraft from the early ages used piston power to power an engine thus spinning a propeller. So therefore Passenger Jetliners have APU. Piston driven aircraft don’t. But why?
@bartoszskowronski 17 днів тому
statistics of most rarest failures (and also not being accident/incident) ex manual flap extraction was used 10x through all history of 747. would be fun.
@francishor81742 17 днів тому
No subscriptions button to click. Anyway. Awesome.
@seanpaul3050 Місяць тому
Yes but what do you do when all redundancy options fail to extend flaps. Find a longer runway
@dwoodkamp4550 Місяць тому
Your "Flap Link" in the left upper corner from this vid didn't show up?... Houston we've got a problem!
@edmondhung6097 Місяць тому
Will it be safer to land flap up instead of extend flap without any protection?
@flywithcaptainjoe Місяць тому
No! Your approach speed will be very very high and you need a super long runway to come to a stop!
@edmondhung6097 Місяць тому
@@flywithcaptainjoe Make sense. Thanks for sharing the knowledge
@v____l Місяць тому
So altn mode -> go around in full flaps?
@HxTurtle Місяць тому
good question! (even though it didn't specify retraction times in this video; or so, I think.)
@flywithcaptainjoe Місяць тому
Flaps 25 max when using Alternate Flaps! And yes a go-around is a tricky one. It works but you have to wait a minute for the flaps to retract!
@Boeingboy737 Місяць тому
I have a question, do pilots study about the all the systems of aircarft in detail. Do technician and pilots have same level of knowledge about the systems of aircraft?
@jeffgoin Місяць тому
No. Most pilots have a fairly cursory understanding of systems and that's OK. In the history of accidents VERY few have been aggravated by a lack of detailed system knowledge.
@galaxiedance3135 Місяць тому
Someone piloting the plane like me would stay cool as a cucumber because I would have no idea at all that there is any problem !! Great to know though. Next time I see this out the window and the flaps are creeping along.. I'll know that they're using the backup system....and go back to sleep :)
@Dirk-van-den-Berg Місяць тому
We saw Kelsey from 74Gear being promoted to captain. You are older than him, I assume. Whenever a Cargolux plane lands at Schiphol I assume it is you. Are you in check for your fourth bar?
@stephencheshire3109 Місяць тому
What if one lowers quickly than the other I know the 737 has a protective system
@michaelturner4457 Місяць тому
Aren't the leading edge flaps called slats?
@ZK-APA Місяць тому
Both are different. If the device re-energises the boundary layer, those are slats. And if the device increases the camber, then those are leading edge flaps.
@ahmedmahomed Місяць тому
❤🎉
@indiraburzic2355 Місяць тому
🎉
@douggale5962 Місяць тому
I wonder if you can fly upside down and maintain altitude okay with full flaps and gear "down". This video made me wonder.
@HxTurtle Місяць тому
probably not. landing gear position wouldn't do much, aerodynamically (aside from adding further drag; but it doesn't alter lift characteristics.) I reckon that a commercial jet might be able to flight upside down with retracted flaps. but with them extended, too much air gets directed into the then "wrong" direction that the required angle of attack to counter this would just be too high; or the engines not powerful enough; however one wanna see it.
@CerberusTenshi Місяць тому
Redundancy. Redundancy. Redundancy. Is that a nod to Dr. Mike's Chest compressions. Chest compressions. Chest compressions.?
@flywithcaptainjoe Місяць тому
No :)
@markvolpe2305 Місяць тому
What happens if the electric motors fail?
@laudelinaandrade4313 Місяць тому
❤😊
@mrmcdermo Місяць тому
I think the first video might have gotten pulled down for some reason. 😮
@BigWhoopZH Місяць тому
Can't you just flap with the wings instead?
@SpyxlMC Місяць тому
Joe, could you maybe do a (short) video on MH370? Just a reaction or just some thoughts u can share on the accident
@WANDERER0070 Місяць тому
See Green dot aviation 😊
@flywithcaptainjoe Місяць тому
As long as there is no official report, I won't do a video on it. But there is another guy, who just loves making up stuff from thin air, to get the views!
@rhoefferle Місяць тому
Land fast
@dmitrysysoletin9967 Місяць тому
Hi! Thank you for the inreresting video! Can you please explain, how can you restore a pressure in hydraulic system in flight? You can, in theory, use a fuel as a hydraulic liquid to refill the system, but this is not the case for 747, if I remember correctly... Thanks!
@flywithcaptainjoe Місяць тому
For example if you had an overheat situation, then you would shut it down for a while to cool off, and then start it up again for approach and landing
@dmitrysysoletin9967 Місяць тому
@@flywithcaptainjoe Thanks for the answer.
@rumberitoboricua Місяць тому
Go fast????
@jiminyhopkins Місяць тому
This is why Joe is the best. While "other" pilot YTers sensationalize accidents, Joe provides education and knowledge. Great work, mate! Need some more One Minute Debriefs!
@maydaygoingdown5602 Місяць тому
See a Gynaecologist straight away!!
@ambrose7581 Місяць тому
Full pitch veenita didn't even took any note,spoke once directly to give offer… done.
@tm8473 Місяць тому
if they don't extend, the land will be very fast.
@Phreak0matic Місяць тому
You should probably upload multiple copies of this video for obvious reasons.... (Redundancy.... redundancy... redun.....)
@ingmarvanderbent2988 Місяць тому
Redundancy, redundancy, redundancy. That’s basically the basis of aviation and all aircraft have to adhere to it
@joeds3775 Місяць тому
Except Boeing apparently.
@user-gn2wp8wp2i Місяць тому
Land at a higher speed on preferably a longer runway. Not rocket science.
@Skank_and_Gutterboy Місяць тому
If the flaps don't extend you tell your boss to quit buying from Boeing.
@mariesimard7006 Місяць тому
Yé Joe, do you have a lot of scammers? Because twice time they felt in love with me and they did loves vidéos with your image 🤷♀️
@lilaj34siren Місяць тому
What? Not me being first 🤣❤️
@cruisinguy6024 Місяць тому
Wait. Is this real? Are we finally getting a new video or is this reupload?
@flywithcaptainjoe Місяць тому
All real :) Back in action! Sorry for the wait.
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