PMDG 737 NGX Full Tutorial | Episode 3 | Autoflight Systems

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In this episode I explain all of the autoflight systems on this aircraft and how they work. ***APOLOGY*** When I recorded this I was having one of those days where I couldn't quite get my words out!

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Category:

Gaming

Tags:

• pmdg
• 737
• ngx
• tutorial
• autopilot
• autoflight
• episode
• series
• full
• landing
• airport

[michaelgriffin2003]

When you began the approach you pushed VOR LOC. If you had not pressed that, wouldnt it still make it to the runway simply by being in LNAV and VNAV modes? I always assumed that as long as the data was entered into the FMC correctly and you had selected the correct ILS frequency and course setting, then it would automatically fly straight down to the runway without using VOR LOC. What is the advantage or reason behind using that button?

[FSXpilot767]

@michaelgriffin2003 Yes, the aircraft would fly the approach on LNAV and VNAV however this is all about precision. ILS approaches offer a higher level of precision than LNAV and VNAV and more importantly reference to raw navigation data present in the real world, not computer data in the FMC which could be incorrect. If you use APP mode to fly the approach and use LNAV and VNAV instead you don't even need to have the correct ILS info, just the approach entered in the FMC. :)

[patrickchristensen96]

What is the diffence between SPD INTV and LVL Change?

Great video by the way!

[FSXpilot767]

@patrickchristensen96 They are two completely different things, SPD INTV is a button which opens or closes the speed window on the MCP hence giving you control of the speed when the aircraft is flying in VNAV or removing that control. LVL Change is an autopilot mode to climb or descend the aircraft using the elevators. i.e. during a climb, maximum climb thrust is set and elevator is used to control speed. Idle thrust is set to descend and the same is done. Thanks for watching and commenting! :D

[BadNiedernauer]

Hey! Very useful tutorials you make here! Thanks a lot! But i still have 2 major problems: First, my VNAV switch won't turn on, even after creating and activating a flightplan in FMC. (LNAV works though). Second, i've watched the FMC tutorial episode, i followed exaclty what you said but the Trim doesn't adjust itsel automaticly and i get a message saying that the V SPEEDS are not available. Do you know what's wrong? Please help! Thanks.

[FSXpilot767]

@BadNiedernauer Hi, thanks, I can help but first please tell me 1) when your VNAV switch won't turn on (before takeoff, whole flight etc.?) 2) did you watch episode 6? Did you go through the PERF INIT page and EXECute the data after you'd entered it? Thanks :)

[FSXpilot767]

@rafaelsanque no, I'm 15!!! LOL Thanks a lot! :D

[FSXpilot767]

@juanga251 ok, firstly I had this problem on my first flight and it can be overcome very easily. Make sure you set a lower altitude before the T/D and it should start descending in the VNAV mode when the T/D is reached. If you can't set a lower altitude before T/D for whatever reason such as ATC, when you are cleared down press the ALT INTV button and it should start descending in VNAV. Hope this helps you :)

[michaelgriffin2003]

@FSXpilot767 Cool thanks!

[BadNiedernauer]

@FSXpilot767 Hey, thanks for the help! Yes, I've entered all correct information and solved my problem just yesterday by reading the manuals. It happens that both of the flight directors should've been on for the VNAV to work. :/ Oh, by the way, I just made a successfull landing at Innsbruck rw8, by using the DME West approach. Thanks for showing me how to do it!

[pcpilot737ngx]

@FSXpilot767 Thanks:)

[FSXpilot767]

@pcpilot737ngx on the ground as well :)