Train brake question. (lever throws in HUD vs psi.)

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Train brake question. (lever throws in HUD vs psi.)

Unread postby Ericmopar » Sat May 10, 2014 7:17 pm

This is about the lever in the F4 HUD, mostly.
I've gotten pretty good at adjusting the basic pressures to work better, but on some engines, the lever throw from minimum reduction to full service is to short.
I was wondering how to correct that little problem, since it makes for touchy brakes, even if the pressures have been adjusted to something reasonable.
I don't even know where the files that control that are.
Any help would be appreciated.
Last edited by Ericmopar on Sun May 11, 2014 6:45 pm, edited 2 times in total.
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Re: Engine brake question. (lever throws in HUD vs psi.)

Unread postby mrennie » Sat May 10, 2014 7:38 pm

Ericmopar wrote:This is about the lever in the F4 HUD, mostly.
I've gotten pretty good at adjusting the basic pressures to work better, but on some engines, the lever throw from minimum reduction to full service is to short.
I was wondering how to correct that little problem, since it makes for touchy brakes, even if the pressures have been adjusted to something reasonable.
I don't even know where the files that control that are.
Any help would be appreciated.

Thanks, Eric.


In the engine blueprint, go down to the control values section and look for the entries for TrainBrakeControl and EngineBrakeControl, then look at the values defined for the notch data (the value says where each notch starts, in a range of 0.0 to 1.0). The engine brake control might be a simple lever but the train brake is usually an irregular notched lever (irregular means each notch has to be defined with a name and value, because they aren't evenly spaced).
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Re: Train brake question. (lever throws in HUD vs psi.)

Unread postby Ericmopar » Sun May 11, 2014 6:45 pm

Thanks Mike, and for anyone looking, I had a typo that said "Engine brake" I meant "Train brake"

Thanks, Eric.
New build. i7-7700k, MSI Z270 Gaming M5 Mobo, Hyper 212 Evo, Corsair DDR4 3200 Mhz RAM, Klipsch Pro Mediea 2.1 Speakers, Samsung 850 Evo SSD, HAF XM Case, Asus Strix GTX 1070 and Cooler Master Storm XT Keyboard.
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