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Fixing car weights

Posted:
Fri Mar 08, 2013 7:11 pm
by bpetit
How would I go about this? There's a couple of things in the bin I don't quite understand like Mass or MaxPercentageofVehicleWeight. Plus I think the brakes are wrong.
Could someone elaborate on this matter?
Currently WIP or in testing phase
Boxcars
Autoracks
CoalHoppers
TankCars
Cabeese
Still to be done
2bay Hoppers
Cement Hoppers
3 Bay Hopper
Refridgerator Cars
DoubleStacks
Coiled Steel Car
Re: Fixing car weights

Posted:
Fri Mar 08, 2013 7:41 pm
by Chacal
Theere were a few threads in the forum. Search for "physics".
Re: Fixing car weights

Posted:
Fri Mar 08, 2013 9:33 pm
by bpetit
Thanks Chacal.
Using RS tools which I now love. I've edited the two default boxcars to have 40 tons empty and 91.5 loaded. Based on real life figures from a 60ft boxcar.
Anyone want to be my guinea pig?

Re: Fixing car weights

Posted:
Sat Mar 09, 2013 8:38 am
by buzz456
I give them a go.

Re: Fixing car weights

Posted:
Sat Mar 09, 2013 11:02 am
by bpetit
Boxcar Modifed Weights.zip
Ok, and don't forget to load them as well. Place in the Kuju Rollingstock Boxcar Default, Def2.
Re: Fixing car weights

Posted:
Sun Mar 10, 2013 3:37 pm
by buzz456
My report is based on taking RSC GP9 and pulling 12 loaded and unloaded box cars out of Minturn up the hill. The loaded bax car for sure was heavier to get rolling, nicely so, however on the grade in notch eight both the loaded and unloaded ones pulled at the same speed. This was run at a top speed of 35 and ground down to 18.5 mph.
Re: Fixing car weights

Posted:
Sun Mar 10, 2013 4:43 pm
by Chacal
Was the GP9 already hooked up to the boxcars at the start of the scenario, or did you have to couple them ?
Re: Fixing car weights

Posted:
Sun Mar 10, 2013 7:24 pm
by bpetit
buzz456 wrote:My report is based on taking RSC GP9 and pulling 12 loaded and unloaded box cars out of Minturn up the hill. The loaded bax car for sure was heavier to get rolling, nicely so, however on the grade in notch eight both the loaded and unloaded ones pulled at the same speed. This was run at a top speed of 35 and ground down to 18.5 mph.
Gradient?
Re: Fixing car weights

Posted:
Sun Mar 10, 2013 8:40 pm
by buzz456
About 1 foot for each 150. What's that?
Re: Fixing car weights

Posted:
Sun Mar 10, 2013 11:05 pm
by bpetit
I mean the grade you know like 1.1%, 2.2%, 3% and so forth.
Also on which route are you on?
Re: Fixing car weights

Posted:
Mon Mar 11, 2013 1:20 am
by FourEightFour
bpetit wrote:I mean the grade you know like 1.1%, 2.2%, 3% and so forth.
Also on which route are you on?
1 in 150 equals about .6 percent. Minturn is on Tennessee Pass.
Re: Fixing car weights

Posted:
Mon Mar 11, 2013 8:23 am
by buzz456
I had to couple up to them in both cases.
Re: Fixing car weights

Posted:
Mon Mar 11, 2013 8:29 am
by artimrj
Dont' forget about this
viewtopic.php?f=8&t=7162For true physics cars have to be already coupled to engine, otherwise they are inaccurate.
Re: Fixing car weights

Posted:
Mon Mar 11, 2013 8:43 am
by buzz456
OK gang, now having read Bob's post I will go back tonight when I get home and run this over again and post the results.

Re: Fixing car weights

Posted:
Mon Mar 11, 2013 8:59 am
by artimrj
Also so you know, all NERW rolling stock has adjusted weights for loaded and unloaded. I did it to them long ago.