Lateral & Vertical Navigation B747-400

JHello all, how do you do. I’ve repeatedly been asked to talk about Lateral Navigation (LNAV), and Vertical Navigation procedures and sequence on the Boeing 747-400 air the Boeing 747-8. To put it simply, before departure, part of the preparation by the pilots ( While passengers are checking in etc), is to insert the planned route in the Flight Management system. In doing this, the pilots pre-programme the lateral route and also give instructions as to how high and when the aircraft should climb on the route. The Lateral Navigation engages at 50 feet after lift off while the Vertical Navigation engages at 400 feet. The required altitude is pre-selected on the MCP ( Mode Control Panel) and any other en- route climbs or descents too. Have a watch and I hope you will have some idea what LNAV and VNAV are and how they work. By the way, the landing gear is down so that i could slow the rate of climb giving me time to explain the events at a slower pace as they happened.So in summary, LNAV is left-right while VNAV is Up-Down. Hope you like it. Later!😀✈️✈️✈️✈️

Пікірлер: 72

  • @noahwilliams8918
    @noahwilliams89183 жыл бұрын

    Of all the Boeing pilots I've seen talking about LNAV/VNAV, none have been this instructive. The way you just show exactly which buttons you push and what they do explained in simple terms is unmatched anywhere else on KZread. Thank you, Captain!

  • @pilot_obet7815

    @pilot_obet7815

    2 жыл бұрын

    My pleasure😊

  • @8953147
    @89531472 жыл бұрын

    I like the detailed view of the PFD from the pilots view on the ground and in air. That helps me with troubleshooting.

  • @stenic2
    @stenic22 жыл бұрын

    Beautiful the digit movement on that mechanical altitude selector

  • @jesuschal3802
    @jesuschal38022 жыл бұрын

    After this video I think I'm capable of flying a 747.... in my dreams only!

  • @Maersky-747
    @Maersky-7473 жыл бұрын

    King of the sky ... Captain Obet. Loved the video 👍👍👍

  • @B744ERFJackLoh
    @B744ERFJackLoh3 жыл бұрын

    This is the best explanation about Lnav and Vnav! Thank you Captain !!! Next time I would definitely prefer to sit at the copilot seat and help to set the gear up 😂

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    That was deliberate so that it climbs slower to allow me to explain the events as they happened, just like the tcas off.

  • @noahwilliams8918

    @noahwilliams8918

    3 жыл бұрын

    @@pilot_obet7815 I think he mostly just wants to fly with you - and I don't blame him 😂 looks fun!

  • @B744ERFJackLoh

    @B744ERFJackLoh

    Жыл бұрын

    @@pilot_obet7815 Oh I see now. Thank you for your good intentions. Right. It takes just a couple mins to climb to clean speed with gear-up. Amazing. I keep watching your videos again and again. My sim in my house locate at Guangzhou. Quite close to HK. Now we are all opened finally. Hope we can meet and would like to invite you, my captain, to visit my sim. A short video of MySim kzread.info/dash/bejne/ZWpsxNJwZJy1qrQ.html Best wishes.

  • @jumbostrong5503
    @jumbostrong55032 жыл бұрын

    Thanks very much, with educational, informative and entertaining sir.

  • @radwi69
    @radwi692 жыл бұрын

    I landed at your channel by mere chance, and wo wo wow, you answered tons of questions and queries I had in my mind for years! Thank you so much captain for the enormous effort and patience with which you make these educational videos for the rest of us, aviation "enthusiasts".

  • @borugby
    @borugby2 жыл бұрын

    Crystal clear explanations. Thanks Captain.

  • @michaelbarlow3686
    @michaelbarlow36862 жыл бұрын

    Great Instructive video Thanks Captain.

  • @mugundhann5905
    @mugundhann59052 жыл бұрын

    It's a mind-blowing explanation of the technical terms in an easiest way.Hats off captain

  • @user-dw8ud2hw5d
    @user-dw8ud2hw5d2 жыл бұрын

    your style is so cool. Short and sweet - learning soooo much from you. Used to fly CX plenty before covid. Hope to return once HKG opens. LATER............

  • @bigbtripathi
    @bigbtripathi2 жыл бұрын

    This is much better instruction than what I have seen in other channels. Thank you sir.

  • @Myst3ryM4nn
    @Myst3ryM4nn3 жыл бұрын

    Thanks for explaining

  • @blessingbani8967
    @blessingbani89672 жыл бұрын

    Thank you capt, I feel I'm a flying school already watching your videos. Pretty comprehensive

  • @Fab777300ER
    @Fab777300ER3 жыл бұрын

    Wonderful video captain Obet! Loved your videos. Learn more pilots about B747 or another Boeing's too. You learn very well. This is very simple and easy to understand. I can only to say thank you. Thank you so much.

  • @edgaralex9892
    @edgaralex98923 жыл бұрын

    Love 747

  • @ryanphillips5688
    @ryanphillips56888 ай бұрын

    Your videos are awesome!

  • @brianmorley482
    @brianmorley4822 жыл бұрын

    What a guy!!!

  • @ranjeetchadda5156
    @ranjeetchadda51562 жыл бұрын

    It took me almost 1 year to understand what lnav and vnav is... And then, I came across this video and it really did cleared my doubt... 😀 Thank you soooooooooooooo much capt !

  • @pilot_obet7815

    @pilot_obet7815

    2 жыл бұрын

    My pleasure😀

  • @Elad747F
    @Elad747F3 жыл бұрын

    Great captain and great instructor! Thank you 😊

  • @B747-4OO
    @B747-4OO3 жыл бұрын

    Educational, short and spicy! Thanks again for your videos! 👍

  • @ETW1
    @ETW13 жыл бұрын

    Explanation is so clear thank you capt. ❤

  • @markcardwell
    @markcardwell2 жыл бұрын

    Thx Capt

  • @cargoluxpilot
    @cargoluxpilot3 жыл бұрын

    Great explanation as always!

  • @stopspewinshit7878
    @stopspewinshit78782 жыл бұрын

    great vids!

  • @Repented008
    @Repented0083 жыл бұрын

    I appreciate your channel.

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    Thank you

  • @Repented008

    @Repented008

    3 жыл бұрын

    @@pilot_obet7815 Did you ever get the chance to sneak in a supersonic dive when nobody was looking?

  • @davidakom6877
    @davidakom68773 жыл бұрын

    Thanks very much for the lessons.

  • @dmk9278
    @dmk92783 жыл бұрын

    Amazing knowledge , keep them videos coming

  • @simplyaerospace1266
    @simplyaerospace12663 жыл бұрын

    Amazing video as always Captain

  • @nightowldickson
    @nightowldickson3 жыл бұрын

    Great video explaining LNAV and VNAV from first person point of view but most impressive is you managing to get the aircraft off the ground (in the sim) and hold your camera at the same time

  • @jordan87lewis
    @jordan87lewis3 жыл бұрын

    Later Capt beautiful video

  • @KeunMikeun
    @KeunMikeun2 жыл бұрын

    Just awesome! 👍

  • @pilot_obet7815

    @pilot_obet7815

    2 жыл бұрын

    Thank you! Cheers!

  • @leocheung8864
    @leocheung88643 жыл бұрын

    Most informative video I have seen on the 747 so far, keep up the good work captain!

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    Thanks

  • @WIGGlNS
    @WIGGlNS3 жыл бұрын

    This is super cool

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    Thanks

  • @marcuschak6031
    @marcuschak60313 жыл бұрын

    Captain, very clear explanation 👍👍, btw what is meant by RNAV?thanks!!

  • @AviationShots._
    @AviationShots._2 жыл бұрын

    Nice explanations out here!! One question sir. Can the pilots set takeoff thrust by pushing the thrust levers manually to takeoff power setting, without pressing the TO/GA button? If yes, what would be the indications in the FMA?

  • @justcuz4891
    @justcuz48913 жыл бұрын

    What happened to “Positive Rate”🤔

  • @dawkinss2422
    @dawkinss2422 Жыл бұрын

    So just press the button not the v/s vertical speed button. To climb

  • @usiddiqi
    @usiddiqi Жыл бұрын

    @Pilot_obet: Just watching this video nth time :) and noticed that you didn't up the gears after positive climb and they remained down? Any specific reason ?

  • @Valentin_MeL
    @Valentin_MeL Жыл бұрын

    Wow , i didn't know i could press altitude selector button on autopilot panel. I thought it's only possible in airbus... Well i guess this is the reason why autopilot didn't listen to me in vnav mod when dispatcher gave me a certain altitude.

  • @burtonlee706
    @burtonlee7062 жыл бұрын

    Why sometimes I see when the speed tape indicates say flaps 10, pilots start retract to flaps 5 instead? Is that different plane models have different procedures or depend on their airline companies flight rules?

  • @grobbelm
    @grobbelm3 жыл бұрын

    THAT easy... I could fly that ...

  • @markjosephm.demesademesama5443
    @markjosephm.demesademesama54432 жыл бұрын

    Hi captain can I ask to explain what is flight director and how does the flight director work thank you.

  • @wsh820814g
    @wsh820814g3 жыл бұрын

    Hello Captain, just wondering for most of the cases, once the aircraft took off, will the speed need to be built up first or the altitude? Which comes to your priority?? Thanks

  • @pilot_obet7815

    @pilot_obet7815

    2 жыл бұрын

    Its sort of both. First though just after liftoff, you attain a climb out safety speed. Then you maintain this this until a specified altitude, usually 1000 feet before you start to accelerate to retract the flaps😊

  • @hongkongplanespotter
    @hongkongplanespotter3 жыл бұрын

    Awesome video Sir 👍, just a question, why the pilot usually call out "LNAV" after gear up in Cathay Pacific?

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    Just standard operating procedures. Companies are different

  • @borugby
    @borugby2 жыл бұрын

    Gear still down 😀

  • @ooooo8228
    @ooooo82282 жыл бұрын

    Was this adapted any NADP?

  • @chappati21
    @chappati213 жыл бұрын

    Hi Captain, Anand here, thanks for posting this video. For how long gears could be down after takeoff, will there be come kind of alarm ?

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    You can leave the gear for as long as you like. In this video, you will notice that I left the gear down. This was deliberate so that it would slow down the rate of climb for me to give the exploration

  • @chappati21

    @chappati21

    3 жыл бұрын

    @@pilot_obet7815 I see! Thanks for the answer Captain.

  • @alexaartsen4328
    @alexaartsen43283 жыл бұрын

    Good video, you forgot to get the gear up!

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    I’ve explained why- I didn’t forget. 😊 thanks for your comment.

  • @EHAM747

    @EHAM747

    3 жыл бұрын

    @@pilot_obet7815 Oh, ok. Well then I will view it again.

  • @dariustanz3410
    @dariustanz34103 жыл бұрын

    Captain why was the TCAS OFF?

  • @pilot_obet7815

    @pilot_obet7815

    3 жыл бұрын

    The subject was LNAV/ VNAV

  • @bruhitsmoh
    @bruhitsmoh Жыл бұрын

    Pilot obet your apu is running

  • @pilot_obet7815

    @pilot_obet7815

    Жыл бұрын

    Yes-I know

  • @pilot_obet7815

    @pilot_obet7815

    Жыл бұрын

    Quite a number of times, we may need to takeoff with the APU providing air conditioning air to the packs. This allows greater thrust from the engines. This avails a higher takeoff weight. So APU is NOT always OFF for takeoff 😄

  • @bruhitsmoh

    @bruhitsmoh

    Жыл бұрын

    @@pilot_obet7815 ohh meaning if you have alot of weight then you takeoff with apu, then when do you switch it off??