SD70ACe

[micaelcorleone]

But I find it simply amazing that you all don't scream about the pulling power being way off. Or can a single SD70ACe pull 60 loaded cars over Cajon pass by itself?

Ahhh, no!
As I tried to pull the about 25 cement hoppers in the Cajon Pass freeroam scenario from San B. the single SD70ACE had difficulties to stay by 34 mph and not fall even down that speed and that was just the beginning of the pass.
So I don't really think it has too much power, but I'm no expert.
Could it be that your 60 cars are not loaded? That would explain your experience.

[Bothersome]

I'd say the cars are loaded, but they were Semi-Tractor trailers on flatcars. But who knows what's in them. Let's assume they were brand new and coming from a trailer factory somewhere and needed to be hauled south from Barstow...

OK, a picture is worth a thousand words (each)...

Pictures are about 2.7 MB each at 1920 x 1080 resolution so be warned...

http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.49980--117.28304_15-00-28.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.47476--117.28107_15-03-08.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.35211--117.37629_15-18-40.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.35094--117.38461_15-19-25.png

Those for show the train in a climb at 1.6 degree incline. The last shows the speed about 37.5 miles an hour. The train is 1 SD70AEe pulling 60 flatcars with simi tractor trailers. The colored trailers are on the 10th, 20th, 30th, etc cars up to 60th. There is no position that could I capture the entire length of the train because it was just too long and then faded out into the fog.

http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.29799--117.45947_15-44-53.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.25198--117.46428_15-53-06.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.25107--117.46083_15-53-29.png

These three show the trip down. To maintain a speed of less than 35 miles and hour all that is needed is to set the dynamic break to 5%.

I think the bug in Railworks with this dynamic break is that the break is being applied to all cars in the train instead of just the locomotives. Because when you take a cement train down, you need more dynamic break to hold the same weight, but you don't have as many cars in the train so you have less breaking power. If that makes sense.

So, you guys think it normal a single SD70ACe can do all that?

I think the power output is about twice too much and the dynamic break is being applied to all cars in the train.

[UP1989]

Just thought I would drop in and say I'm LOVING the SD70ACe. Its such a great engine. Great work RW team.

[UP1989]

I'd say the cars are loaded, but they were Semi-Tractor trailers on flatcars. But who knows what's in them. Let's assume they were brand new and coming from a trailer factory somewhere and needed to be hauled south from Barstow...

OK, a picture is worth a thousand words (each)...

Pictures are about 2.7 MB each at 1920 x 1080 resolution so be warned...

http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.49980--117.28304_15-00-28.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.47476--117.28107_15-03-08.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.35211--117.37629_15-18-40.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.35094--117.38461_15-19-25.png

Those for show the train in a climb at 1.6 degree incline. The last shows the speed about 37.5 miles an hour. The train is 1 SD70AEe pulling 60 flatcars with simi tractor trailers. The colored trailers are on the 10th, 20th, 30th, etc cars up to 60th. There is no position that could I capture the entire length of the train because it was just too long and then faded out into the fog.

http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.29799--117.45947_15-44-53.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.25198--117.46428_15-53-06.png
http://www.caddoboats.com/MorePics/temp/Screenshot_Barstow%20to%20San%20Bernardino_34.25107--117.46083_15-53-29.png

These three show the trip down. To maintain a speed of less than 35 miles and hour all that is needed is to set the dynamic break to 5%.

I think the bug in Railworks with this dynamic break is that the break is being applied to all cars in the train instead of just the locomotives. Because when you take a cement train down, you need more dynamic break to hold the same weight, but you don't have as many cars in the train so you have less breaking power. If that makes sense.

So, you guys think it normal a single SD70ACe can do all that?
I think the power output is about twice too much and the dynamic break is being applied to all cars in the train.

GREAT pics.

[micaelcorleone]

It could also be that the physics of the cars are wrong and they are too light because in the ski train scenario on castlerock with only six passenger coaches I had to put the throttle way up just to reach the speed limit.
In my opinion it's because of the cars as the same has happened with the doublestacks from G-Trax. I managed it to pull about much more than 60 cars over the steepest grade of the pass with only five Dash 9s and the throttle at about 30%.
Just wrong physics.

[MrMurphy]

Just thought I would drop in and say I'm LOVING the SD70ACe. Its such a great engine. Great work RW team.

As much as I understand You wanted to say "It's such a great LOOKING engine" instead of what did You say. Yes the model and cab are looking absolutely fantastic. Sounds are better than expected. But physics ... oh my god ...

I think the power output is about twice too much

Yes, absolutely right. Plus ... no any wheelslip and dynamic brakes functioning totally unrealistic way. I tried to change simulation physics parameters (tractive force vs throttle and tractive force vs speed) and got it to work much more realistically but I have to make more tests to be sure it's okay now. As much as I know dynamic brake handler has to have "activate" + 8 notches exactly like throttle handler. Seems like work on dynamic brake handler has not been finished at all.
Another problem is computer screens which are dead-looking. Few days ago RSC Derek replied to my post in Facebook: "RW is not traffic simulator - it's a driving simulator". If so how can driver (engineer) drive this very computerised loco without working computers?
So ... EMD SD70ACE for RW is extremely beautyful model with awful physics and missing very important cab control elements. The exactly same story as with Dash 9 released earlier. I hope RSC will take critics seriously and those problems will be fixed as soon as possible.

[buzz456]

This is sounding like a thread that should be on that other blog.

Buzz

[Hawk]

Maybe it's time to lock this thread. I believe it's run its course.