Aircraft Creep

[Wings of Gold]

I have both the Razbam A-4C and A-4E Skyhawks. The only problem that I can't resolve is that both aircraft "creep" after load.

My (solely missed buddy - Wayne Tudor) has previously corrected any problem like this. As I recall, he went into the aircraft.cfg file, and altered the "[GeneralEngineData] \ min_throttle_limit=0.000000" to read a negative figure. I have tried that (up to - 1.5) with no effect what so ever. Perhaps my memory is faulty (Nahhh).

Can anyone please advise me on how to solve this problem?

Best to you all.

Bill

[Milton Shupe]

Static thrust, even when correctly stated, is probably causing it but I would not reduce it.

Have you tried simply pulling back the idle control lever, if you have one, to just forward of the fuel shutoff.

[fliger747]

Depending on weight, many aircraft will move at idle thrust. However try hitting the F1 key to make sure you are really getting a full idle thrust setting.

[Mike71]

An A-4 or F-4, even heavy: in real life, would gradually start to creep if not chocked. Even at idle. The A-4 didn't have a parking brake; can't recall the Navy F-4s having one either.

[Bjoern]

"min_throttle_limit" only applies to aircraft featuring reversers.

[n4gix]

Adding a tiny .xml gauge will fix the creeping:


(A:BRAKE PARKING POSITION,percent) 0 >

if{ 1 (>K:FREEZE_LATITUDE_LONGITUDE_SET) 1 (>K:FREEZE_ATTITUDE_SET) }

els{ 0 (>K:FREEZE_LATITUDE_LONGITUDE_SET) 0 (>K:FREEZE_ATTITUDE_SET) }

[Wings of Gold]

Thanks for the help guys. It is most appreciated!

Bill

[mal998]

Bill,
check your private mail.

mal

[Bjoern]

Adding a tiny .xml gauge will fix the creeping:


(A:BRAKE PARKING POSITION,percent) 0 >

if{ 1 (>K:FREEZE_LATITUDE_LONGITUDE_SET) 1 (>K:FREEZE_ATTITUDE_SET) }

els{ 0 (>K:FREEZE_LATITUDE_LONGITUDE_SET) 0 (>K:FREEZE_ATTITUDE_SET) }


Why the attitude freeze?

[PhantomTweak]

I may be wrong, and am far, far from a decent XML coder, but I think that's the code for a parking brake.
Essentially, an invisible parking brake.
I think. Rarely. It gives me a headache, which is why I am a lousy XML coder.
Heck, I am having a heck of a time writing a simple anti-skid switch to add to airplanes that should have one but don't.

Anywho...
Pat☺

[n4gix]

Why the attitude freeze?

Because the plane will do some truly astonishing on ground acrobatics without it being set... :biggrin-new:

And yes, it is essentially an invisible parking brake. One unintended side-effect though is that at full throttle the plane absolutely will not move at all...

...the wheels and tires will spin madly. :very_drunk:

[Bjoern]

It's just code to freeze aircraft position and attitude when the parking brake is set. So yes, basically a "zero movement" parking brake.

[fsafranek]

It's just code to freeze aircraft position and attitude when the parking brake is set. So yes, basically a "zero movement" parking brake.
Interesting. Has anyone tried applying it in mid-air? :pop4:

[Bjoern]

Interesting. Has anyone tried applying it in mid-air? :pop4:

[Cue that scene from "Hot Shots"]

[fliger747]

We had an aircraft in Beta Test for which I was responsible for the flight dynamics. The plane also had a lot of .DLL based legerdemain running in the background. In one test iteration it began doing some really strange behavior, in effect becoming a helicopter. Boy did I get a lot of fingers pointed! But it turned out to be something similar freezing the lat/lon position under certain circumstances.

As the FS flight engine does not feel bound by the laws of physics, many interesting things are possible. There was an Ito-san plane that had a negative value entered for braking? It would accelerate wildly with the parking brake set, even with the engine off. Then there is the MOI shakes an jitters when a plane will slowly dance around when parked. This one will vary in it's effect with sim version.

Always interesting!