Problems (again,I HEAR YOU ASK.

Hi Roger,
Using my investigative skills, I deduced you're referring to the Black Country 1 route

I just started the London Connection and had the same trouble as you!  There is something wrong with 45519 and, if you're interested, I'll have a look tomorrow.

The other problem is because AI trains work differently in Open Rails to the way they do in MSTS due, mainly, to the OR development team having to do a lot of educated guessing owing to the lack of any documentation on the internal workings of MSTS.  On the whole, I think they have done, and are doing, a marvellous job, even if it does, sometimes, frustrate some of we MSTS stalwarts!!

Cheers,
Ged

EDIT : I couldn't leave it until tomorrow!  
Change this line in the Engine section : CylinderDiameter ( 18 ) to CylinderDiameter ( 18in ) and you should be running normally!!
Obviously. MSTS defaults to inches, but I've no idea what OR reads it as!!

Hi Both

According to the CTN "Open Rails Steam Parameters" Steam Cylinder section states that Cylinder Stroke and Cylinder Diameter both default to meters where no UoM is specified. No wonder 45519 went fast with cylinders that size!!!

www.coalstonewcastle.com.au/physics/steam-set/

Cheers

Terry

Hi Terry,
Thanks for that
However, wouldn't you have thought that Open Rails is 'clever' enough to calculate that a boiler of the specified size couldn't maintain a supply of steam to such gigantic cylinders?!

Cheers,
Ged

Morning Ged

Yes it does a lot of good work for us but can't spot a HUGE cylinder at 30 paces!!!

TW

There are at least three iterations of 45519 in the MSTS library:
NS_BR_Patriot_45519_BLW
CC_5XP_45519_BLW
BR_Patriot_45519_BLW
All have the same cylinder diameter of 18 and need correcting. They are of course essentially the same file renamed.
Jonathan

Hi Again Ged

Further to your discovery of the fault affecting CC_Patriot_45519_Black (and others) I spent a little time collating the following data from where else but the OR log, generated at run time.

The data truly shows the wild figures that the missing "in" was causing and of course the jet like acceleration of the loco.

I am not sure if your fault finding was based on inspection of the OR log but lines 1c 1e and 1g do contain some 'over the top' figures!!


There are three lines of data for each value generated as follows:-


Lines commencing with the figure 1 represent values from the original .eng file as downloaded with fault.

Lines commencing with the figure 2 represent values from the original .eng file as downloaded with fault rectified ie "in" inserted.

Lines commencing with the figure 3 represent values from the my own .eng file.


Information: Version - U2022.02.14-1551
Information: Locomotive Name - CC_Patriot_45519_Black (and others)

1a Information: Steam Locomotive Type - Not formally defined (assumed simple) locomotive. + Not formally defined (assumed superheated)

2a Information: Steam Locomotive Type - Not formally defined (assumed simple) locomotive. + Not formally defined (assumed superheated)

3a Information: Steam Locomotive Type - Simple locomotive + Superheater

1b Information: WheelRadius 3.38 ft, NumWheels 1, DriveWheelWeight 80.8 t-uk

2b Information: WheelRadius 3.38 ft, NumWheels 1, DriveWheelWeight 80.8 t-uk

3b Information: WheelRadius 3.33 ft, NumWheels 3, DriveWheelWeight 63.0 t-uk

1c Information: Boiler Volume 407,737.3 cu ft, Evap Area 3,384,220.0 sq ft, Superheat Area 846,055.0 sq ft, Max Superheat Temp 250.0 F, Max Boiler Pressure 200.0 psi

2c Information: Boiler Volume 651.8 cu ft, Evap Area 2,183.4 sq ft, Superheat Area 545.8 sq ft, Max Superheat Temp 250.0 F, Max Boiler Pressure 200.0 psi

3c Information: Boiler Volume 296.0 cu ft, Evap Area 1,735.0 sq ft, Superheat Area 365.0 sq ft, Max Superheat Temp 210.0 F, Max Boiler Pressure 200.0 psi

1d Information: Boiler Evap Rate 15 , Max Boiler Output 5.07633E+07 lbs/h

2d Information: Boiler Evap Rate 15 , Max Boiler Output 32750.45 lbs/h

3d Information: Boiler Evap Rate 15 , Max Boiler Output 26025.01 lbs/h

1e Information: Num 3, Stroke 26.0 in, Diameter 708.7 in, Efficiency 1.0, MaxIHP 2,770,166.0

2e Information: Num 3, Stroke 26.0 in, Diameter 18.0 in, Efficiency 1.0, MaxIHP 1,787.2

3e Information: Num 3, Stroke 26.0 in, Diameter 18.0 in, Efficiency 1.0, MaxIHP 1,348.0

1f Information: Port Opening 0.085, Exhaust Point 0, InitialSuperheatFactor 40

2f Information: Port Opening 0.085, Exhaust Point 0, InitialSuperheatFactor 40

3f Information: Port Opening 0.085, Exhaust Point 0, InitialSuperheatFactor 40

1g Information: Grate - Area 67,684.4 sq ft, Limit 138.9 lb/sq ft

2g Information: Grate - Area 43.7 sq ft, Limit 138.9 lb/sq ft

3g Information: Grate - Area 30.0 sq ft, Limit 165.1 lb/sq ft

1h Information: Fuel - Calorific 14359.42 btu/lb, Max Firing Rate 30000.27 lbs/h Max Coal Load 12319.98 lbs

2h Information: Fuel - Calorific 14359.42 btu/lb, Max Firing Rate 30000.27 lbs/h Max Coal Load 12319.98 lbs

3h Information: Fuel - Calorific 13600 btu/lb, Max Firing Rate 3000.027 lbs/h Max Coal Load 12320.02 lbs


All the best for now

Terry

Hi Terry,
I'm ashamed to admit that I didn't use the OR Log data.  That document is so full of figures, not always directly related to entries in the .eng file, that I find it rather mind-boggling!!

I used the old-fashioned method of comparing the .eng file with that of one known to work correctly, in this case, the Flying Scotsman!  Realising that the fault must be (a) in the Engine section, but (b) not in the Engine Controllers section, because it was so similar to that of the Scotsman, I used the 'binary-chop method of sequentially replacing sections of code with the same section from the Scotsman, until I found the culprit!

Cheers,
Ged

Hi Ged

I had spent some time doing much the same as yourself only with my copy 45519 which I knew worked ok in OR and MSTS.
Then you posted your solution which I immediately tried and as it cured the problem set the investigation to one side. It was only after your post :-

"However, wouldn't you have thought that Open Rails is 'clever' enough to calculate that a boiler of the specified size couldn't maintain a supply of steam to such gigantic cylinders?!"

that I thought about the log file and decided to take a look to see what data the errant loco .eng file reported. Hence my last post, just as an exercise and for information that may be of interest to others.

Cheers

Terry