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Jackie

Throttle

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Is it normal that during cruise that my 747 does not maintain a steady throttle. It keeps overspeeding. Is there a setting that I am overlooking?ThanksJackie

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Is it normal that during cruise that my 747 does not maintain a steady throttle. It keeps overspeeding. Is there a setting that I am overlooking?ThanksJackie
Is it normal that my wife does'nt understand when i come home late from the pub? :( You are going to have to give us a little bit more information before anyone can help you im afraid VNAV?Climbing , cruising decending ,Active sky weather , default weather ?You get the Idea :( Mark

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Hey Mark sorry about that. I am using Activesky. VNAV speed crusing at about 30000 feet.

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Hey Mark sorry about that. I am using Activesky. VNAV speed crusing at about 30000 feet.
No problem mate !Presuming that you have set everything up as per ...Are you using a throtte controler ?Are the auto throttles staying engaged ?One of the more common reasons is that the option to override autopilot with manual imput from the controls is selected and "noise " from the throttle disconnects auto throttle If this is the case then you need to either calibrate your throttle or de select the manual imput override in your options (bet its not that it would be too easy :( )Mark

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Throttle controller yes.Throttle staying engaged yes.The override option is not selected.

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Throttle controller yes.Throttle staying engaged yes.The override option is not selected.
Well If i were you the next thing i would look at is active skys "wind aloft"Does the overspeeding happen with every flight ?The wind shift changes in active sky can be brutal , it might be worth trying a known bad route with winds disabled to see if that is the cause .Again I am presuming that everything is set up with your fmc and your autopilot .Just a quick question Does your 747 just accelerate and overspeed or is it constantly advancing and retarding the throttles I have never experienced this issue , and to be honest Im quite lazy when it comes to the throttle control Im one of those people who arm Vnav at pushback , hit TOGA , fly the departure , engage "otto" , and then not touch the throttles untill 500ft on approach :( I take it by the way we are talking about AS 6.5 and FS9Mark

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Well I am quite like you Mark. I just engage the VNAV and go. This is FSX and ASX. The throttle keeps advancing and retarding. But is quite noticable.

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Jackie,Post a screenshot of the main panel (showing the PFD, MFD and MCP) while the overspeed situation is happening and it should be apparent pretty quickly if it's due to improper operation of the airplane...

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I am using the FSUIPC for wind smoothing. Not sure if i still need to enable wind smoothing in ASX

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Ryan the overspeeding has stopped as of right now in flight the engines keep spooling up and down.

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Cockpit ImageIts a bad night for me. Now the aircraft is making a rattling sound like its starting to stall. I at my cruise below my Opt Atl.

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Well Jackie I am at a loss , I hope that Ryan or someone else can help you and it would seem one or two others who seem to be having similar problems I dont see any of these problems in FS9. Sorry mate Mark

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Hey thanks Mark, I guess the main thing I hope is that I am not overlooking something.

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One thing that catches my eye is your engine thrust at (99) and your only at 270~ at FL320. Are you sure your CG isnt bad? Maybe overweight?

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I doubt that plane is pretty much empty that much I know for sure.
Press the speed button and turn up the speed for some min. Then go back and press VNAV again......it usually helps.If not, go to FMC and change to CLIMB for a couple of sec and also Throttle up your joystick the same time./ Leffe

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Do you have your joystick throttles set to override the PMDG throttles? It looks like there may be a battle for control whenever the joystick throttle spikes.-stefan

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I think the throttle excursions/overspeeds are due to the messed up winds in MSFS. I notice you are flying towards GIPER which if that is one one near KORD then the winds out of the south at 63 kts is totally screwy. Two things, in normal conditions the controls in the VC seem to move more than realistic but more importantly, watch that wind vector when things are happening.I have my FSUIPC set to limit wind/speed variations to 8 seconds per 1 deg/kt, temp/pressure changes are set to one half the default values and all gusts/shifts are inhibited. Do not use wind smoothing in ASX, let FSUIPC handle it.Try a flight with clear wx (no weather) and that will give you something to compare. I've seen MSFS/AFX thow winds out of the SE at me at jetstream strenght, and this will never happen in this part of the world. The MSFS wx engine is more trouble that it is worth, and AFX can only make incremental improvements. Trouble is, ASX will feed wx data to the sim engine but the sim engine will suddenly get a wild hair and go off on a tangent. The FSUIPC smoothing is the only fix I know of.

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Hey Dan, thanks for the info. I will see what I can do in regards to getting better winds. in FSX. I did enable wind smoothing in FSUIPC so I will check my settings and try again.

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