What Does An Airline Pilot Check During Flap Retraction? - [Boeing 737 Take-off]
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- Опубліковано 20 лип 2024
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In today's video, you see what an Airline Pilot check during flap retraction.
There are two main things that you need to understand in order to get the most out of this content:
1. Speed Trend Vector: This will indicate to the pilots if the aircraft is accelerating or decelerating. You will see a green arrow coming out from your Airspeed indication. The Speed Trend Vector indicates where your speed will be in the next 10 seconds.
2. Flap Maneuvering Speed: On the right of the Airspeed Tape you will see Green numbers, these numbers indicate the flap maneuvering speed for that specific flap setting. This is important because you cannot fly below the maneuvering speed unless you have a higher flap setting.
In the video, we are going to take off, climb to 1000 Above Aerodrome Level, and then we will accelerate to the minimum clean speed.
In order to start the flap retraction, you need to make sure that the speed is above the flap maneuvering speed and that the speed trend vector is positive.
So, in order to retract the flap from flap 5 to flap 1, you must be above flap 5 maneuvering speed with a positive speed trend vector.
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Timestamps:
00:00 Intro
01:04 Briefing
02:11 Speed Trend Vector
03:56 White Bug
04:44 Flap Maneuvering Speed
06:36 Aircraft Performance
07:10 Take-off
10:12 Flap retraction
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Disclaimer:
THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY.
NOT FOR REAL-LIFE OPERATIONS.
PLEASE REFER TO THE OFFICIAL MANUAL AND DOCUMENTATION.
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#PILOTCLIMB
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Perfect explanation. Very clear. Solved the confusion for me on why pilots retract flaps BEFORE the actual min speed!
Thanks for your support!!
Thanks a lot ! It learns me how I can improve my takeoff in terms of realism
Very very clear and useful lesson! 👏🏻👏🏻🤩 Thank you very much Captain! 👨🏻✈️💪🏻. 👋🏻 Greetings from Spain 🇪🇸.
You are very welcome!! Glad you like it!!
GREAT Explanation! Thank you for taking the time to make this video and share your knowledge.
You are very welcome!! Many thanks for your support
One more great explanation Captain, thank you for your time and efforts!
My pleasure! You are very welcome!
This was great, thanks!
Great job, thank you for doing this!👍
You are very welcome!
Thanks Capt Gabriele for this well explained Videos... Wish you a nice weekend ahead... 👍👍
You are very welcome!! Thanks for watching!! Have a nice weekend!!
Excelent video my friend! Cheers
Thanks for watching!! Have a great day!
Another really nice video. I'm learning so much from watching your content.
I'm glad to read this !!! Thanks for watching
Thanks a lot! Waiting for more videos!
My pleasure
Hi pilotclimb!
First of all I want to thank you for your channel, because it has been a great aid for me during my ATPL ME IR training.
I have recently been accepted on the MCC APS mentored by Ryanair (🥳) and I wanted to ask you if you could please do a more technical video about MCC and CRM than the ones you already have in your channel, that are really good but may be you could enter more into technical details, anecdotes and so on?
Grachie mille !!
Hey, you are very welcome!!I'm happy to see that my videos helped you!! I'll take your suggestion into consideration for a future content, in the mean time of you need any help check the link below where you can book a private zoom session with me:
pilotclimb.com/product/pilot-training-online-1-on-1-zoom-call/
I wish you a great day!
@@PILOTCLIMB Great!! I didn't know this option existed, thank you so much !!
@@miri6056 you are very welcome!! Have a great day!
Thank u sir, it’s very useful, and could u pls tell us more about the approach and landing techniques with different weather situations like strong headwind or tailwind , or in a very bumpy day. As a new pilot, these all confuse me , so if it’s ok, could u pls tell us more about it, thx
You are very welcome!! I will take your suggestion into consideration for a future content! Have a great day!
Very well explained 👌🏾
Thanks for watching!
you explained amazingly but only one thing.. plz select pfd or make the camera angle larger(closer to the pfd) so that we can see better.In this video you were perfect but we couldnt see pfd clearly( ı need binoculars to see :) cuz most of the people like me watch your videos on small screens like cell phones) Like I said you r amazing and plz keep doing what u do , I just wanted to say :)
Thanks for the support and the feedback!! I wish you a great day!
very clear and concise tutorial! would you also explain the green lines above the stall speed indicators? what's the purpose of these lines bcs it also changes when we change flaps setting
Thanks for your comment, most probably i will make a video about that
Thanks👍
You are very welcome
Great video as usual commander, I have a question though why do you wait till you reach the acceleration altitude to engage the Autopilot? Doesn’t the FCTM encourage pilots to engage the A/P as soon as practicable after the takeoff at 400ft RA?
I'm glad you like it!!The AP engagement height depends on the National Authority Regulations and Company procedures, so it may vary depeding on these factors.
@@PILOTCLIMB Ah I see thank you for your explanation :)
10:55 Could you please provide more detail where you say "Without positive trend speed vector, we cannot recract speed to Flaps 15". I have been trying to find where it is actually written. Thanks
You are simply amazing 😍👌🏻
Many thanks for your support!!
One more amazing video, thank you Captain! A question: as we know; acc.to fctm, immediate turn after take off is advised with take off flaps with bank 15 below V2+15 or with t.o. flaps bank 30 above V2+15. Thats fine. What about if we will need to make a turn while flap retraction? Do we need to consider bank angle while below next flap man. Speed that we are below it during retraction? Or as you have explained trend vector and flap retraction speed already protect us?
I'm glad you like the video!! The bank angle limitation only applies if the speed is below V2+15, you can bank more with no problems while retracting the flaps.
avoid retracting flaps whilst turning..you will notice the amber" moustache" coming down to meet you and could get intermittent stick shake.This is particularly so at high density airport take offs and especially on a hot day. Follow your AFM it clearly states what you need to do. Also avoid engaging VNAV modes before you are settled on your climb and on LNAV (which can be engaged at 400 ft minimum.
Why I saw some 747-400 sim videos show that the pilots retract the flap, say flap 5, at the indicated flap 5 mark on the airspeed display, instead you may retract to flap1 on the 737?
As long as you have a positive speed increment indicated by the speed trend trend vector...
Isn’t it safer to wait till your actual speed is above the minimum flap maneuver speed before retracting on schedule rather than using the speed trend vector over the actual speed?
If you monitor the parameters mentioned on the video you are 100% safe. If you wait however, you are less efficient.
How do you set the clock for the B737-800?
Check the video about how to fly a circle to land, there I use the clock few times
Good video, i'm still confused when you retract the flaps below the flaps man. speed 😅. What if we wait to be above the speed to retract the flaps in order to make sure we won't be overspeeding ?
Im glad you like it, you could wait, however is not very efficient.
@@PILOTCLIMB got it, thanks
is it safe to reach 240knots at flaps 5 ? i know it s a stress for the flaps but as indicated under the gear lever
It's safe, however it is not ideal since as you said it will stress the flaps..
@@PILOTCLIMB thanks captain for your time ♥
for flaps 1 to flaps up in this video, what if there is a speed restriction to limit speed to 200 kts for turn? do we still retract from 1 to up or just maintain flaps 1 until completion of turn to increase speed above flaps up speed?
thank you
You keep the flap... Thanks for watching
@@PILOTCLIMB we can keep the flaps because limit is 250knots correct? thanks for the reply captain 😊
We can keep and need keep, due to restriction limit speed, in case of 200 kt restriction you will be below flaps up manoeuvring speed, that’s why you can’t retract flaps fully, after passing restriction you can make bug up, accelerate with trend and then retract to flaps up.
I think Pilotclimb will agree with this.
Boeing DOES NOT SAY ABOVE but AT V2+15 (white bug and speed increasing). I never move the flap lever exactly AT but that's what Boeing says. Boeing also says: Gear Down/Flaps 15 and observe Gear green light before selecting flaps to 15. I might be the only pilot in this galaxy who observes the THREE GREEN LIGHTS before touching the flap lever. Many times in the simulator, they ask me what am I waiting for and when I show them the book, I listen to thousand of excuses from DOESN"T MATTER to it's a Boeing mistake. Nobody seems to remember that the gear may not show 3 green lights and if this happens, the gear configuration will sound and you'll be doing your checklist with lots of drag unless you override the checklist, increase your speed and retract the flaps to 10, 5 or up.
Hey, thanks for your feedback. Have a great day!
...... your english is, if I may say so, not of great help, I'm afraid......WMB