Aircrafts Moving at Idle

[specialist 51]

I want to know if anyone knows why the aircraft would move without applying thrust power. As soon as I start FSX, no matter which aircraft it is, the plane moves forward. I have to immediately apply the breaks, otherwise they hit the terminals or other aircrafts parked. Is there somewhere I can fix this in the fsx.cfg file or else where?

[Perry333 7]

Make sure you have your throttle calibrated on your joy stick properly. When you first load a flight in FSX it may not know where your throttle and other devices are positioned, you have to sort of wake them up by moving them first. It always good to created a default flight with everything shut down. So pick your favorite airport and a default plane from fsx like trike or cessna, shut everything down, put your emergency brakes on, set up everything just the way you like it and save it. When the window comes up name it and check the box on the bottom to make this your default flight. Now when you start any flight you will start with everything shut down and setup like you did before and you won't have to worry about jamming on the brakes and quickly setting the throttle. you should not have to do anything in the cfg. file for this. Hope this helps.

[Guest wims]

If you dont want to mess with save games etc you can do it the Proper Way© by editing \FSX\Flights\other\FLTSIM.FLT with a text editor. Look for the line ThrottleLeverPctSet it to =0. There are also a few other lines that might be interesting in the same section. Which ones should be obvious from the name of the variable itself

[specialist 51]

Thanks both of you for your directions. I will surely check those two things and get back with results.

[specialist 51]

Thanks guys, that did the trick for the majority of the addons. The only once I'm having trouble with still, I believe that it has to do with its own configuration, and nothing to do with FSX now. At least my PMDG, Level-D, Captain Sim, and FeelThere aircrafts are all stable and are not moving on its own.Cheers!:(

[Pete Dowson 558]

Thanks guys, that did the trick for the majority of the addons. The only once I'm having trouble with still, I believe that it has to do with its own configuration, and nothing to do with FSX now

The proper solution really is to make sure you have the parking brakes set when you park your aircraft before you save the flight. I am reliably informed that it is quite normal for some aircraft (737NGs for sure) to creep forward with idle thrust. I always start off "cold and dark" in any case, without engines running, but if you do save with engines running put the parking brake on first.RegardsPete

[Guest bstolle]

The proper solution really is to make sure you have the parking brakes set when you park your aircraft before you save the flight. I am reliably informed that it is quite normal for some aircraft (737NGs for sure) to creep forward with idle thrust. I always start off "cold and dark" in any case, without engines running, but if you do save with engines running put the parking brake on first.RegardsPete

Confirmed, even a 767-300 at medium weight accelerates easily to 20-30kts with idle thrust.

[specialist 51]

Hi Pete,That may be so with a 737 or any other aircraft parked at the gate at the beginning of your flight as you start up, but what's not normal is for the aircraft to keep moving forward when you've stopped behind an aircraft lined for take off, or if you're at the runway before take off and you've stopped the aircraft before taking off, but the darn thing keeps moving forward on its own.One aircraft in particular bad with problem is the Lionheart Epic Victory. After all this I've had to go into the aircraf config and tweek the thrust settings from 1.0 to 0.8, and that made a difference. No change on take off or flight thrust performance, but it sure has kept the darn thing from moving on its own.

[Guest wims]

Its perfectly normal for an airliner to move forward at idle trust when no brakes have been applied. I think most airlines actually use idle trust for taxiing.

[Pete Dowson 558]

That may be so with a 737 or any other aircraft parked at the gate at the beginning of your flight as you start up, but what's not normal is for the aircraft to keep moving forward when you've stopped behind an aircraft lined for take off, or if you're at the runway before take off and you've stopped the aircraft before taking off, but the darn thing keeps moving forward on its own.

Yes, actually, it is normal. Either keep your feet on the brakes or use the parking brake.RegardsPete

[specialist 51]

Its perfectly normal for an airliner to move forward at idle trust when no brakes have been applied. I think most airlines actually use idle trust for taxiing.

They apply forward thrust to taxi and then set it back a bit to control the speed, it doesn't just automatically happens. It's true thou that you have to apply your parking breaks before engine startup, just because the startup thrust of the turnbines causes the aircraft to move forward if you don't. However, if you press down on your toe peddle and break, and your engine is idle at a low rpm, there shouldn't be any significant forward movement, perhaps very very little but not the way I was describing it.By the way Pete, I was going to ask you if there is any settings on the FSUIPC that control thrust?

[Guest bstolle]

Hi Pete,That may be so with a 737 or any other aircraft parked at the gate at the beginning of your flight as you start up, but what's not normal is for the aircraft to keep moving forward when you've stopped behind an aircraft lined for take off, or if you're at the runway before take off and you've stopped the aircraft before taking off, but the darn thing keeps moving forward on its own.

??? what's the difference between being parked at the gate and being in the queue for departure?Without brakes many planes start moving on their own!Again, a 767 accelerates from 0 to about 20-30kts it idle thrust!

[Guest bstolle]

This is one of the first things I noticed when switching from FS9 to FSX. If the engines are running on intial load. They are at full throttle!

?? Never had this problem, never heard of that...

[Pete Dowson 558]

However, if you press down on your toe peddle and break, and your engine is idle at a low rpm, there shouldn't be any significant forward movement, perhaps very very little but not the way I was describing it.

A 737-800 (the airliner I fly exclusively these days) will certainly creep forward quite noticeable at idle thrust on smooth level ground, and most taxiing is done with idle trust, just using a touch more to start and to avoid slowing too much on sharper corners. You certainly need to hold it using brakes. If you find a model in FS which doesn't exhibit these characteristics it isn't very accurate.

By the way Pete, I was going to ask you if there is any settings on the FSUIPC that control thrust?

Assignment to throttles, you mean? What sort of control would you expect FSUIPC to provide on its own volition? Thrust control should be in the hands of the pilot or the autothrottle, surely?RegardsPete

[specialist 51]

All I'm saying is that not everyone starts or ends their simming in cold and dark. Usually when someone starts their program, they are at the gate, the engines are running, and if you're not quick enouth, the damn plane will slam against the terminal or hit another aircraft parked near by. What I meant about the FSUIPC is, can you control the amount of idle thrust for the aircraft, or is that something I just have to mess with in the aircraft configuration file?