B747-400ERF Flap retraction 

My pleasure 😊

Which flight simulator u make?

สันญลักษะ แอร์..แฉก.ใบ.ปรับอากาศ.

My pleasure Sir

My pleasure

My pleasure 😀

thanks

You are welcome. I love aircraft and Aviation Industry in general.

My pleasure.

It’s because I was trying to capture as much of the moving parts as possible- I only had this one opportunity- it’s irritating and I apologise- will try something better if I get another chance

If you're interested in a perfectly modelled B747-400 simulator then take a look at www.aerowinx.com I use it and just use MSFS for the visuals only. The user forum is very active too.

Thank you

Thanks

Cool- thanks 😊

Will join group👍🏾

Too right!

Thank you Sir

Thanks- it’s ok not to like the plane too😊

@@pilot_obet7815 I dont know about that, how can any sane person dislike the Queen? 😱😱

Yes indeed😀

please sir i need your supporting to be come a pilot is my passion

What do you mean?

YesI have. I was alone on this day and by chance the engineers were moving the flaps

@@pilot_obet7815 ahh would love to see that sometime, forward and aft looking views simultaneously

Thanks. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CF-z42YwQX0.html

@@pilot_obet7815 thanks man! 👍

I know- sorry…getting better at it😀

Older planes like the 747 have a "thrust gate" which is a gap in the flaps where the engine thrust passes through. The inboard gap on the 747 houses the all-speed aileron. Modern planes like the A380 have flaps all across the wing and these capture thrust on takeoff and channel it downwards, reducing the takeoff run distance. Some planes also use the all-speed aileron as a flap or as a flap/spoiler as well, called a flaperon. Airbuses don't have all-speed ailerons though, it's a Boeing thing only. Maybe the A300/A310 had them though.

Wait, what happened at KA

@@seadeer923 Google "Cathay Dragon".

Oh yes

Tbh I forgot for a sec

Thank you- it’s a difficult time for everybody

Not good obviously- big impact on people/families.

@seadeer923 thats CAPTAIN obet to you, us and I. He has earned that respect.

I’m assuming it’s with the APU

Yes the air driven hydraulic pumps number 1 and 4 are on and pressurise the system. Powered by the APU

The Auxilliary Power Unit (APU) in the tail is providing pneumatic (pressurised air) power to the air-driven hydraulic pumps in the outboard engine struts for trailing edge flap operation. The APU also provides pneumatic power to the air-driven motors which drive the leading edge flaps. It could be done electrically, but that would be much slower.

I know- I apologise. Will use a microphone properly for such videos next time. It will be better.

No, Krueger flaps are not known as slats. They are 2 different leading edge devices. The Krueger flaps fold out from under the leading edge to increase the wings camber or “curve” to increase lift. Slats are attached to the front of the leading edge and when they extend the push out forward and down to open a slot gap between itself and the wing so that high pressure air from the bottom of the wing to energise the top air and reduce stall speed. The 747 as only Krueger flaps and no slats. Planes like the 737 has both. Krueger flaps between the fuselage and engines and slats outside the engines towards the wingtips.

Mr, how many days so far?💪🏾🙏🏾

This is exactly the question I had from watching this video. What's the difference between Krueger flaps and slats?

Incorrect- the Cathay Pacific B747-400’s are ERF versions with Pratt’s- check

Boeing did offer RR, P&W as well as GE. The only customer for the passenger ER, Qantas, took theirs with GE.

Ha ha- I apologise- early filming days etc. getting there..in addition, some of these opportunities only arise suddenly…I arrive at the aircraft and they say ‘ oh captain we are just going to exercise the flaps before your dispatch- nothing planned😊

@@pilot_obet7815 Sorry for the tripod remark. In fact your videos about the "systems" and to see them work is very informative (I am also a private pilot since 1980), so to see the mechanics is wonderful, please do more with a "little more stability". !! Thanks !

I know- sorry. If I’d stayed on one aspect, then you’d miss the other and only get one view. I needed three cameras but as it happened- it was impromptu when the engineers said they needed to check something on the flight controls

They ARE TRIPPLE SLOTTED

Ok- will do

Sorry about it- it was my attempt to not miss some of the moving parts as I only had one chance. Will do a better one when I get a chance.