CAPTAIN SIM FORUM
C-130 X-perience >> C-130 X-perience - General >> Throttle problem !!!!
https://www.captainsim.org/forum/csf.pl?num=1232964837

Message started by Von Rondstadd on Jan 26th, 2009 at 10:13am

Title: Throttle problem !!!!
Post by Von Rondstadd on Jan 26th, 2009 at 10:13am
Hello,

I bought the captainsim C130 X-perience pro pack and 757 pro pack and Xload just after x-mas!
Great planes!!!!  

But!  
When the trottle is in ground idle position, still the plane is moving forwards! I use the pro flight trottle quadrant Saitek!
Any other plane is standing still
When I try too land the plane and try too slow down the speed by moving the trottle back, it looks like a bug, the trottle lever keeps on bumping forward and backwards several times, like an interference!
There is no good control if the lever comes somewhere about flight idle and lower ground idle.
I tried to reinstall the planes and FSX!

And something else the strobelights and anti collisian lights dont work!

Can anybody help me????
Thanks!


Flightsim X, acceleration pack
Vista 64 bits Ultimate servicepack 1
Intel Core  2 Quad Cpu Q6700 2.66 Ghz
Ram 4,00 GB
9800GTX 512

Title: Re: Throttle problem !!!!
Post by herkMX on Jan 27th, 2009 at 1:39am
I'm using the CYBORG 3d GOLD joystick from Saitek.
Throttle in ground position is same as you stated; I've just gotten use to setting the parking brake when sitting at idle. Didn't do it in the 2004 version or other aircraft in FSX.

As for landing the aircraft, I usually bring back the throttles to idle and use the F2 to start reversing the pitch of the props.

Sorry no fixes for your problem, but I thought I'd let you know that I've seen what you've seen....

Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Jan 27th, 2009 at 8:56am
Thank you for your reply!
I am glad to know that I am not the only one with the problem!
Hope the problem can be solved!

Title: Re: Throttle problem !!!!
Post by JaggyroadFilms on Jan 28th, 2009 at 8:07pm
Many turbos that I know of, especially when lightly loaded do actually do this in the real world. Not sure how the C-130 is however.

Title: Re: Throttle problem !!!!
Post by Tyrion on Jan 28th, 2009 at 9:43pm
Hey,
My C-130 is also moving forward on the ground with throttles in idle position.
This is because in an airplane, you can't have your engine deliver no thrust at all.
It will always provide some thrust. I do have some other addons where this makes the plane start rolling on the ground...
I don't now if the amount of thrust in idle is realistic...

Tyrion

Title: Re: Throttle problem !!!!
Post by herkMX on Jan 28th, 2009 at 11:02pm
So it didn't do it in 2004, but does it now. It's more real-istic. COOL!

Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Jan 29th, 2009 at 10:35am
Oke thank you all for your reply!, but

When I try too land the plane and try too slow down the speed by moving the trottle back, it looks like a bug, the trottle lever keeps on bumping forward and backwards several times, like an interference!
There is no good control if the lever comes somewhere about flight idle and lower ground idle.

Is that also happening when you try to land!
Because that's not good!!!!


And why is the 757-200 plane standing still without the brakes?
Is that right than?

Title: Re: Throttle problem !!!!
Post by Tyrion on Jan 29th, 2009 at 4:14pm
As I said, I don't know if the amount of idle thrust is realistic. most of my planes aren't moving with throttles in idle, just some of them do.
about the interference, this is something I don't have.
My throttle control is good.
maybe it's a problem with your throttles, did you correctly install it's drivers? If you did, I can't think of something else that could cause this,
but then again, I'm centainly NOT an expert in this...

Tyrion

Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Jan 29th, 2009 at 5:06pm
Oke thanks,
I have no problem with the other planes only the C130!

Title: Re: Throttle problem !!!!
Post by ctspilot on Jan 30th, 2009 at 4:04am
I had this same problem with the 1.1 version. I just downloaded 1.3 tonight and was hoping this was fixed.

The way I worked around it in 1.1 was to use use my fuel mixture control (I have a CH Flight Sim yoke with the 3 levers on top) to reduce flow to around 100 PPH while on the ground. I have no idea if this is realistic or not, but I was so tired of not being able to park on the tarmac (even with brakes) that I didn't really care.

I guess I will keep working around it in 1.3. Honestly, I had very few issues with 1.1 and once I figured out what was causing me to zoom across the airport, into buildings, trees, and other planes, I really enjoyed flying the C130 around.

Title: Re: Throttle problem !!!!
Post by herkMX on Jan 30th, 2009 at 10:34pm
I've got a friend who is a flight engineer over at Duke Field. I asked him about this, so last night they released brakes, sat for a bit, and at ground idle, the aircraft started to slowly roll forward.

General consensus was that a C-130 without a heavy cargo load, and one that hadn't sat around long enough to let the tires develop a flat spot, will probably roll a bit, even in ground idle.

Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Jan 31st, 2009 at 8:58am
Thank you very much for your effort and information!!!!

But in my situation my plane is staring to move forwards too fast!!!!

Title: Re: Throttle problem !!!!
Post by Hawkwind on Jan 31st, 2009 at 4:13pm

Von Rondstadd wrote on Jan 31st, 2009 at 8:58am:
Thank you very much for your effort and information!!!!

But in my situation my plane is staring to move forwards too fast!!!!

Have you tried the F2 or F3 key, one of those when pressed (and it may take a few press's) should slow or stop the roll forward.


Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Feb 1st, 2009 at 8:27am
Yes I know that works!
It's odd that this problem only happens with the C130 and not with other plane's!
I must get get used at that I supose!

I found the sollution for my problem!!!!
Maybe someone who has the same problem want's to know!!!!

To recalibrate, first unplug the quadrant.

Go to start/run and type regedit.

The registry editor will have a list of folders on the left hand side. Go down into the following folders in order.

HKEY_LOCAL_MACHINE (CURRENT_USER if on VISTA)
System
CurrentControlSet
Control
Media Properties
Private Properties
Direct Input

Inside the Direct Input folder, delete any folder that begins VID_06A3.

Once done, close the editor. Plug the quadrnat back in and move all the axes through their full range of movement 4 times.

Now go to control panel/game controllers/properties to see if everything is ok on the test screen.


Title: Re: Throttle problem !!!!
Post by Bob Markey on Feb 9th, 2009 at 6:56pm
Von,

I read your post before I installed my C130, and I confirm that it also does like the other posters mention, just like in real life if you leave everything at ground idle, prop levers full forward and mix levers full forward, and release the brakes, it will start to "creep" ahead.

I don't know why yours would go ahead so quickly though, unless maybe you're on a downward incline.

I notice though if I pull my mixture lever back a bit until the engines start to "growl" little, it will no longer pull forward.  There doesn't seem to be a variable lever like this in the cockpit, and I have yet to find the actual fuel condition levers, though the prop pitch levers seem to be marked as such in the VC.

I do notice if I try to pull the prop levers back in ground idle, the torque goes over a limit and the engines shut down.  I think this is accurate, but I'll have to wait until my friend gets back from deployment to ask him.  He runs on the herc crews in real life, so he'd know for sure. :)

Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Feb 10th, 2009 at 9:14am
Oke Bob thanks a lot for your information!
My problem is a lot better after I changed the registry!
I alsow noticed that if the torque goes over the limit the engines shut down.
After your friend gets back I hope to hear from you more?
Again thanks.  ;)

Title: Re: Throttle problem !!!!
Post by Bob Markey on Feb 10th, 2009 at 8:07pm
Interesting.  I'll have to try that also, because I have an issue in my yoke where even if it's at center, it will show just to the right of center in the control panel, and there's no calibration mode for mine.  Maybe your registry stuff will fix it for me as well. :)

Title: Re: Throttle problem !!!!
Post by Von Rondstadd on Feb 11th, 2009 at 10:00am
Is your yoke Saitek?

You can look for your problem at the forum of Saitek!

http://www.saitekforum.com/

Good luck!!!!

Title: Re: Throttle problem !!!!
Post by Bob Markey on Feb 11th, 2009 at 6:19pm
Indeed it is.  I'll take a look.  Thanks for the tip.

Title: Re: Throttle problem !!!!
Post by Matt2218 on Dec 16th, 2009 at 3:23pm
Sorry to resurrect this from the dead, but I figured I'd share another data point.

I'm using a CH yoke, and just recently bought the C-130s for FSX.  

I also suffered from excessive idle power on the ground...to the point where the parking brakes wouldn't hold the aircraft in place. It seemed to be killing my landings as well - even when I came in at an appropriate approach speed, when I leveled off in the flare and cut power I would usually climb...it was horrible.

Based on what I read in this thread I recalibrated my yoke using the Windows Control Panel "calibrate game controller" routine, and it "seems" to have solved my problem.  The parking brake is holding and I just made a very sweet touchdown from a test flight.

So, step one to solving this should be recalibration of your controller and go from there...

Matt

Title: Re: Throttle problem !!!!
Post by Markoz on Dec 20th, 2009 at 10:37am
Does this still happen if you have the 4 green Low Speed Ground Idle buttons depressed on the LOW SPEED GROUND IDLE CONTROL PANEL (Panel 'S' in manual Part II - Systems and Equipment pages 23 & 24)? Because I thought that they are supposed to prevent that from happening.

Mark

Title: Re: Throttle problem !!!!
Post by Matt2218 on Dec 20th, 2009 at 12:38pm
Markoz -

I'll have to check that out.

Turns out my post was a bit premature.  Calibrating my yoke did help, but now it just creeps incredibly slowly with the parking brakes on!  Better than before at least...

Matt

Title: Re: Throttle problem !!!!
Post by Hawkwind on Dec 20th, 2009 at 1:00pm
Also check what reading you get on the Engine Panel the Top Row of 4 gauges should read around 1.6 or so. If they are higher than that try hitting Ctrl+E. Then see what happens.


Title: Re: Throttle problem !!!!
Post by Matt2218 on Dec 20th, 2009 at 9:44pm
Update: The 4 green buttons did NOT stop the forward creep, unfortunately.  With the parking brakes on, it moved forward almost imperceptibly, but over time it was obvious.  At the time, my torque was 4.6 (way higher than 1.6, eh).

I then did what Hawk said (Ctrl+E); torque went down to 2.4 and the aircraft stayed put.  I guess that is my new solution!

Matt

Title: Re: Throttle problem !!!!
Post by Hawkwind on Dec 21st, 2009 at 8:43am
Hi Matt,

I had the same issue with using Multi Crew Experience, getting the co-pilot to start each engine. Also, it depends on how you start the engines. If you do something out of sequence then you tend to get high readings. Hitting Ctrl+E brings them back down to around 1.6 1.7.

Don't know if it's just us or it's a bug but, I can live with it.

James.

Title: Re: Throttle problem !!!!
Post by Matt2218 on Dec 21st, 2009 at 3:37pm
Thanks James!

Title: Re: Throttle problem !!!!
Post by Markoz on Dec 21st, 2009 at 11:34pm
I did some circuits with the C-130, and noticed on 1 occasion that while I had the plane sitting there, with the engines running AND having the green buttons depressed, the engine torque was 2.4. The plane did sneak forward with the parking brakes on. The other 3 or 4 times the torque was 1.4 and the plane just sat still. Pressing CTRL+E after the engines were already started didn't fix it either.

It doesn't happen very often for me and I had never noticed this problem until I read about it here.

Mark

Title: Re: Throttle problem !!!!
Post by Hawkwind on Dec 22nd, 2009 at 8:22pm
Hi Mark,

As I said, it's just one of those things, but, at the end of the day is it a bug or do we live with it??


Title: Re: Throttle problem !!!!
Post by Matt2218 on Dec 23rd, 2009 at 12:30pm

Hawkwind wrote on Dec 22nd, 2009 at 8:22pm:
Hi Mark,

As I said, it's just one of those things, but, at the end of the day is it a bug or do we live with it??



I can certainly live with it at this point!

Title: Re: Throttle problem !!!!
Post by Markoz on Dec 24th, 2009 at 2:29am
Weather it's a bug or not, I don't know. Either way I can still live with it.  ;)

Mark

Title: Re: Throttle problem !!!!
Post by rupesh on Dec 24th, 2009 at 5:20pm
I am having the same issue too, even with the parking brake set, the herc creaps along forward ever so slightly. if it has so much thrust even at idle then i thought at max power it would fly off so i tried it but the herc still creaps along just a tad bit faster with the brakes set. also noticed at full thrust the left wing starts to drop, don't know if this is thrust asymmetry over the wings or a bug. the wings drop independent of the brakes...even while shooting down the runway the left wing drops..tried the saitek x52 calibration and that didn't help either.

Title: Re: Throttle problem !!!!
Post by Hawkwind on Dec 24th, 2009 at 7:11pm
Only ever noticed this twice but, will take another look at this one after the holidays. Have you tried my earlier remody? Ctrl+E

James.

Title: Re: Throttle problem !!!!
Post by rupesh on Dec 28th, 2009 at 5:21pm

Hawkwind wrote on Dec 24th, 2009 at 7:11pm:
Only ever noticed this twice but, will take another look at this one after the holidays. Have you tried my earlier remody? Ctrl+E

James.


thanks James,
yes indeed i tried the ctrl E method which brings down the fuel flow and a host of other things, however the 130 still creaps forward...but it takes a long while to notice it moving, perhaps it does that in u'r system too but u may not have noticed, just let it sit for a minute or so and compare it against the tarmac tile texture or something close by then it may become apparent..then again it could just b in a few systems that it does that.

Title: Re: Throttle problem !!!!
Post by Mighty Herc on Dec 29th, 2009 at 7:00pm
Hi guys,

here some real Herc answers (i'm a co-pilot on this beautiful bird):

1. LOW SPEED GROUND IDLE BUTTONS: the four green buttons on the control pedestal. These things are just there to increase the life expectancy of the engines. In a certain throttle range (9-30°) they can be pushed in to reduce RPM (69-75,5%). When you push the throttles beyond Flight Idle (34°), they will pop out again and normal limits for RPM will apply (98-102%). (A round of beer for the AC if this happens ;-)). In FSX, no big deal though.

2. BRAKES vs POWER. At full power (19600in.lbs) you must be able to hold the brakes. (no parking brake on a RWY ;-) ). In FSX I'm able to do so (Win XP/SP2/ver 1.3). I still have the "left wing drop". This is not normal! BTW, a very light C-130 can take-off in Flight Idle (on a long RWY ;-) )

3. TIP: If you want a full running Herc on the RWY, maybe use the checklist (from cockpit C/L to Line-up C/L) and save your flight there. I was cursing the hell out of my torque setting at zero with full power, but i didn't check my generators on... (so been there done that, flying an out of the box plane ;-) ).

Hope this was helpfull!

Grtz.

Title: Re: Throttle problem !!!!
Post by bkshn on Jan 2nd, 2010 at 6:11am
There are several turboprops that have "constant positive torque" - the best example is the Jetstream J41.  The short answer is that if the props don't "push back" with torque, they will windmill which will cause the wind to turn the propellers - not a good idea.  (It makes for some exciting times making descents in some aircraft though - some of them will "bottom out" at 20%.  If you wind up too high, ya gotta go around).

Brian

CAPTAIN SIM FORUM » Powered by YaBB 2.6.0!
YaBB Forum Software © 2000-2026. All Rights Reserved.