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mansour

Some questions for the PMDG 747-400 Developers?

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Hi there,

I have some points with the PMDG 747-400 V3 when I fly it, I am not using any Joystick at all and I am using P3D v3.4.22

1- I saw some add about the auto brake on landing is not working at all not like the 777 or 737? Also if i arm it before the landing gear is down it is not working too. also in the taxiway I can't slow done the aircraft  too.

2- when I am taxing and give my engine a little power to move and I put my throttle in to ideal the speed is increasing and some time it go to 50nm with out touching the brakes. what i know is if the throttle in ideal the Airplane slow done to stop not to speed up. what i think it is an issue.

3- Fulling

full dumping for 747 & 777 - i can't see the full coming out from the wing? Not same what I see in the FSX with 747v2 & 777.

full using on the last fight - how can I use my last full on i start my sim for the next day? same like the oil option on FMS.

full tank - Can I use the tank for fulling For example, for short flight can I use center tanks only not in the wing

4- I don;t know if i can tel you what I mean and I can explain it to you

     when I am flying with autopilot on, and in my root after waypoint it will go to the next point but let say the next point is in the Right so the aircraft will go to right and everything is okay but I can't see the spoiler in the right wing will come up until the aircraft turn right and go done. also the Rudder why I can't see it going right or left too with autopilot is on.

     you can understand what i mean when you are on approach and you are trying to line with the RWY to land and the autopilot is disengage see the spoiler is going up and down in the wings and the Rudder going right and left.

5- the wheels on the landing gear and the brakes are very very sensitive. All my flights on landing I have tires and brake yellow and damage.  

6- camera in 747-400 in P3D only 777-300. why?

7- fix on the FMS why there is two pages only?

8- in 777 you do a good job with CDU if I press "shift+5" I got captain side and "shift+6" i got First officer. can we get this on the 744 Please! Please!

 

Thank you so much and My Best Regards for all

 

Mansour Alsenaidy

SV995 - IVAO

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The developers usually do not respond to question directed to them, most your answers can be shared by more experienced users.

1) The autobrake works, and there is no requirement to arm after the gear is down.  I usually arm the brakes during my pre-descent flow before TOD. Works every time.  If you are using pedals and are inadvertently sending a brake signal after landing that will cancel autobraking.

2) Taxiing in the QOTSII is the most realistic yet achieved because PMDG did the friction modeling outside the box in their own code.  Technique depends on weight, it may take quite a lot of thrust to get rolling then very little to maintain a safe 15-18 kts.

3) Is there just one question here?  Short flights are main wing tanks only, there is quite a lot to learn in fuel management.  Refer to the pinned post above regarding TANK/ENG considerations.  You can save and load flights that preserve settings and fuel loads just like any other PMDG product.

4) Not sure what the question is here. I think there are two of them?

5) If you are not using autobraking then you are probably overheating the brakes.  You must use autobraking unless it is an non normal procedure, and then you need to use the QRH.

6) Why? Because that is the way the real aircraft is configured.

7) See 6)

8) Submit your request on a trouble ticket at PMDG Product Support to communicate your request directly to PMDG.

Mansour, how many times have you flown the B747v3 Tutorial?  If you haven't may I suggest that you do so, this is important even if you were a B744 type rate pilot simply to learn how to interact with the PMDG simulation.

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I don't think the autopilot actually controls the rudder, so that would explain why the rudder isn't moving.

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In single A/P operation, the rudder is not controlled by the autopilot. Thus, if you have an engine failure, it is up to the pilot to control rudder. The control column is primary in referencing which rudder, the slip skid indicator is secondary, useful if you are in a turn at the time of failure. During autoland below 1500 feet RA when you see LAND 3, the rudder is then active but not not yet controlled by the autopilot, not really doing much until 500 feet when runway alignment begins if there is a crosswind.

Not sure what the question is regarding the spoilers. The outboard 5 spoilers assist in roll control. Are you looking at the synoptic when you are doing this or actually at the aircraft from an external view? The synoptic indicators for the spoilers have position transmitters at the #4 spoiler on the left wing and the #12 spoiler on the right wing, so if you are making a right turn with the autopilot, the spoilers do move deferentially. The #12 spoiler, which is the last spoiler, furthest outboard, will barely move. If you are hand flying , you will notice much more spoiler movement since you probably are not as smooth as the autopilot and during landing, both ailerons are used and the spoilers are more effective in assisting in roll control.

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Dear downscc,

what do you mean about "pedals" I don't have any addon only PMDG 772, 773 and 744 aircraft's. Also AS16 and ASCA. GSX. FS2Crew for 777. FSUIPC4.4.961.

For fulling for short flight can i put my file in center tanks only?

So what you are saying is there is now camera in the real 747 aircraft like the 773  or 772?

what about the fix page in FMS only 2 pages in the real 747?

How many times have you flown the B747v3 Tutorial? i see all the tutorial in YouTube.com. If you have a paschal video let me see it. Please! so i can learn more about it and also the old video for AOA.

----------

Dear Captain Kevin and Captain Al,

Thank you for displaying that for me, leave the Rudder you are correct but the spoiler is moving when you are disengage A/P and you are flying manually you can see that by your self you will going to see the spoiler is going up to slow done the aircraft to turn. spoiler that I mean is on the wing it comes up when you are touching down on landing to slow you down not the one between flaps on one side of the wing.

just look to the wing view on landing you will see it coming up

see this video at 1:11 and 8:40 and 9:47 that can show you what i mean

 

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Correct me if I'm wrong, but I'm pretty sure the spoilers will only assist in the turn during low speed flight. I don't think they would do this for high speed flight at cruise altitude. I know the outboard ailerons get locked out when you're at high speed.

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yes, that what i mean Captain Kevin but is it on low speed flight. What about high speed flight at cruise altitude??

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At high speed flight at cruise altitude, it doesn't take much control input to turn the plane. Start from 26:37 in this video, you'll note that the ailerons don't move that much to turn the plane. At that point, the spoilers wouldn't come up since the ailerons barely moved. It would take a considerable amount of aileron movement before the spoilers come up.

 

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14 hours ago, mansour said:

 

For fulling for short flight can i put my file in center tanks only?

 

 

No. The center tank is only used on long flights, and before fuel can be loaded in the center tank, the wing tanks must be completely full first.

The engines are fed directly by the wing tanks, so there must always be fuel in the wings. For a short flight with less than approximately 55 tons of fuel, you would load each of the four wing tanks equally, and feed each engine with its own tank. Wing tank 1 would feed engine 1, Tank 2 would feed engine 2 etc.

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13 hours ago, Captain Kevin said:

Correct me if I'm wrong, but I'm pretty sure the spoilers will only assist in the turn during low speed flight. I don't think they would do this for high speed flight at cruise altitude. I know the outboard ailerons get locked out when you're at high speed.

Hi Kevin, Look at your video at 26:43, you are correct in high speed flight, the outboard ailerons are locked out, but in high speed flight, the spoilers (5 outboard) still assist in roll control deferentially, though not nearly as evident as in low speed flight, or when hand flying. Watch your left wing in the video closely, you will see all 5 of the spoilers lift up slightly, you can see the gap between different spoiler panels and then they seat again when the turn is completed. They don't need to do much in high speed flight. Next time you fly, look at the synoptic in high speed flight when you make a turn. You will see the spoilers (#4 and #12) move slightly to assist with roll control.

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Dear Captain Kevin,

First of all, I would like to thank every one ho help me here and tutoring me and I am very happy that i post a topic and every one can learn from it. 

I see your video, so what you mean is this thing between the tow flaps "name .... ?" in the wing is what make the aircraft to turn right and left on high speed at cruse altitude.

Have you try full dumping?

you are using FSX? What is the addon for the white air coming from the engines?

I forget to ask about "HI FLOW" on the head panel when did we use it in our flight

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9 hours ago, Captain_Al said:

Hi Kevin, Look at your video at 26:43, you are correct in high speed flight, the outboard ailerons are locked out, but in high speed flight, the spoilers (5 outboard) still assist in roll control deferentially, though not nearly as evident as in low speed flight, or when hand flying. Watch your left wing in the video closely, you will see all 5 of the spoilers lift up slightly, you can see the gap between different spoiler panels and then they seat again when the turn is completed. They don't need to do much in high speed flight. Next time you fly, look at the synoptic in high speed flight when you make a turn. You will see the spoilers (#4 and #12) move slightly to assist with roll control.

As you've flown the plane before, I'll defer to your knowledge on this one. I guess it was a little hard to tell in the video that the spoilers were coming up.

2 hours ago, mansour said:

I see your video, so what you mean is this thing between the tow flaps "name .... ?" in the wing is what make the aircraft to turn right and left on high speed at cruse altitude.

Are you talking about the inboard aileron? I'm struggling to understand what it is you're trying to ask here.

2 hours ago, mansour said:

Have you try full dumping?

I've done a fuel dump before, yes.

2 hours ago, mansour said:

you are using FSX? What is the addon for the white air coming from the engines?

Yes, this is FSX. The contrails aren't really an add-on, they're part of the simulator. Under certain atmospheric conditions, when the altitude is high enough and the temperature gets cold enough, you'll see them.

2 hours ago, mansour said:

I forget to ask about "HI FLOW" on the head panel when did we use it in our flight

You'll have to defer to Captain Al on this one. This one I'm not too sure about.

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On ‎4‎/‎15‎/‎2017 at 11:36 PM, Captain_Al said:

Not sure what the question is regarding the spoilers. The outboard 5 spoilers assist in roll control. Are you looking at the synoptic when you are doing this or actually at the aircraft from an external view? The synoptic indicators for the spoilers have position transmitters at the #4 spoiler on the left wing and the #12 spoiler on the right wing, so if you are making a right turn with the autopilot, the spoilers do move deferentially. The #12 spoiler, which is the last spoiler, furthest outboard, will barely move. If you are hand flying , you will notice much more spoiler movement since you probably are not as smooth as the autopilot and during landing, both ailerons are used and the spoilers are more effective in assisting in roll control.

My underlying premise on spoilers is they can not be used to lift a wing.

blaustern

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21 minutes ago, Bluestar said:

My underlying premise on spoilers is they can not be used to lift a wing.

blaustern

Correct, but they can and are used to spoil the lift and assist in dropping the wing on the turning side, which is what the outboard 5 spoilers do. 

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