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Saitek Combat Rudders and the PMDG 737 NGX

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I have a problem that I only seem to have with the PMDG 737 NGX: when I start the plane and haven't touched my toebrakes yet, I can get moving with just a litte throttle (35 or something like that). However, whenever I have used the rudder and the toebrakes and have to stand still and get moving again (for a hold on the ground but also for taxi after landing) I have to give almost full throttle and the plane won't start moving before I hit something like 65! This means I quite often hear that beep during taxi that my throttle is opened to far...

 

What setting should I look at to remedy this? Or should I have asked this in the PMDG 737 NGX forum?

Bump... No one has an idea...?

I'm just guessing so we can figure this out..

One possibility that whenever you are applying the toe-brakes multiple-times,

it set's the brakes to ON somehow..

Try looking in your bottom center MDF to see if the brakes are applied when you are experiencing this!

Let us know,

I looked but saw nothing moving when using the toe brakes...!?

Sounds like the brakes are not releasing...maybe a calibration issue?

 

If you have a registered copy of FSUIPC, go into the logging tab, and on the right side of the dialogue enter BC4 into the top offset box, and select type "S16" from the dropdown to its right. In the one below it, do the same except enter offset BC6. Tick the checkbox to display in an FS window. This will show you the left and right braking values being applied in FSX--0 to 16384. If you're off the brakes and seeing a nonzero value here, you probably have a controller calibration issue...or the axes could be reversed I suppose. Anyway, this will give you an insight into what the brakes are doing. Just uncheck the FS Window box to make the logging feature stop.

 

Also, if you are using FSUIPC, the PMDG NGX does not play well with FSUIPC doing anything on the brake axis. I have my brake pedals assigned in FSX, and found that even with axis assignment and calibration turned off, I had a lingering LeftBrake=0 line in the calibration section of the FSUIPC4.ini file. Once I removed that, the NGX behaved itself.

 

BTW, the brake axes do not cause visual movement on the brake pedals in the VC even when working properly.

 

Regards

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

I don't have FSUIPC but this afternoon I found out the default null zones that FSX assigned to the toe brakes were wrong... I read a FAQ on the Saitek site which showed the preferred settings and all was fine immediately!

 

Thanks for thinking along though! ^_^

Try reversing the axis.

Steve Giblin

 

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