This question has probably been asked and answered numerous time but I have not spotted it.On some aircraft I have downloaded, the brakes will not hold when the engines (usually jet liners) are spooled up. The aircraft creeps and in many cases will get airborn with the brakes still "on".Question: Is there anything in the aircraft.cfg or air file that can be modified to correct this or is it a more basic problem with the model that was used?Thanks for any enlightenment.

I have noticed the same thing and have never seen anyone explain how to improve the Parking Brake effectiveness.

In FS9, the parking brake effectiveness is adjusted by changing the toe brakes scalar:{brakes}parking_brake = 1 //Parking brake availabletoe_brakes_scale = 1.0 //Brake scalar<-----differential_braking_scale = 0.7 //Delta on the amount of brake when the rudder pedals deflectedUse Notepad to open the aircraft.cfg file, then search for the section shown above. The values entered there are directly proportional to braking power, and parking brake holding ability.Douglas

Thanks Douglas:Your suggestion worked liked a charm. You are a gentleman and a scholar!

I may have a slightly different observation.. my aircraft have some kind of "Micro-creep".Even if I increase the toe brake number, the parking brake allows the aircraft to creep forward slightly on a continuing basis, as can be seen in the outside view when zooming in on the wheels.

I doubt the example above would work with this "micro-creep" issue.{brakes}parking_brake = 1 //Parking brake availableThis is simply a yes (1) or no (0)toe_brakes_scale = 1.0 //Brake scalar<-----And this controls how much of the overall braking strength (in the .air file) is actually available when the brakes are operated.To fix the problem, you must firstly increase the effectiveness of the brakes in the .air file using a tool like AirEd. In section 1101 you'll find a line called something obvious like "braking strenght" and if the aircraft in question has this strength set at say 29000, you could for example double it to 54,000 thereby effectively doubling the braking power.The problem of course is that on landing, if you use the keyboard or a trigger for the brakes, applying braking will cause the aircraft to stop in twice the distance. To counter this, you need to halve the effectiveness of the toe brakes......yestoe_brakes_scale = 0.50 //Brake scalar<-----Just play with the numbers to set it at what works for you.http://www.dreamfleet2000.com/gfx/images/F...BANNER_PAUL.jpg

Paul, just as a test, can the "scale" number be increased beyond 1.0?Should I be able to generate twice the braking power defined in the air-file by setting toe_brakes_scale=2.0?

> you could for>example double it to 54,000 thereby effectively doubling the>braking power.>>The problem of course is that on landing, if you use the>keyboard or a trigger for the brakes, applying braking will>cause the aircraft to stop in twice the distance. Hi PaulI am a bit confused about this -- how does doubling the braking power effectively double the stopping distance - shouldn't that read "halves the stopping distance" ?Regards Barry

>Even if I increase the toe brake number, the parking brake>allows the aircraft to creep forward slightly on a continuing>basis, as can be seen in the outside view when zooming in on>the wheels.This is a bug of the FS engine. Happens with ALL planes. Even if you have 0,00000001% thrust and parking brake engaged the plane will still "micro-creep". To solve this, simply press the key you have assigned to "Throttle cut", default F1. No other solution as far as I know.

I'm assuming that the micro-creep you refer to is with engines at idle. I've noticed that most airctaft creep at this engine condition. If my assumption is correct, then in the air file, open table 1506. On the Mach equals zero line, use thrust factors of zero up to the N1 idle speed. No thrust at idle equals no creep. My aircraft don't creep when I set to the above. There's no noticeable effect on aircraft performance as above idle speed and at higher Mach values, you obviously have thrust values set to give the required aircraft performance.nick

>I'm assuming that the micro-creep you refer to is with>engines at idle. I've noticed that most airctaft creep at this>engine condition. If my assumption is correct, then in the air>file, open table 1506. On the Mach equals zero line, use>thrust factors of zero up to the N1 idle speed. No thrust at>idle equals no creep. My aircraft don't creep when I set to>the above. There's no noticeable effect on aircraft>performance as above idle speed and at higher Mach values, you>obviously have thrust values set to give the required aircraft>performance.>nickI think you are going to have to elaborate on this for most of us. When I go to the place in the .air file you mention, all I see is a table in hex format. Which line are you referring to - the top line where there are numbers in two of the columns? I do not see a Mach = 0 line as such.Please clarify if you would.

No, that would make the toe brakes twice as effective - the problem is when parked i.e the parking brake.

Oooops!!! I didn't say that ;-)Quite right, I meant halves the stopping distance.....well picked out Barry.http://www.dreamfleet2000.com/gfx/images/F...BANNER_PAUL.jpg

Apart from what I already wrote above.http://www.dreamfleet2000.com/gfx/images/F...BANNER_PAUL.jpg

Paul,>>>>And this controls how much of the overall braking strength (in the .air file) is actually available when the brakes are operated.<<<