2-8-8-2 e-specs

stouthm

Get over it
I think I read somewhere that the 2-8-8-2 was the fastest loco at that time. Using bill69's e-spec I can get it to 35mph without any rolling stock. Using wva-usa's e-spec I can get it to 55mph. The latter seems more realistic but shouldn't it be able to go faster than 55mph? Just curious.
 
I got the TS12 built in one to run 65mph with 1300 tons last night no problem, boiler got to 416PSI though :lol: .

However Bill69's espec is based of Billegulla's sheet which is based on TRS2004 values when you reduce the stroke on wheel diameter to get a smaller anim dist for 4 chuffs per revolution as that version didn't have 4 chuffs like today, only 2 however he adopted that into TS09 physics when TS09 uses real world values.

Cheers.
 
Well, the real 2882s werent exactly know for being fast, but they could haul more tonnage than most other things around. Later Mallets were actually fast, but if we are talking about Ben Neals 2882, then no, not fast at all.
Most of the time they pulled tonnage anyway, so no need to be fast.
Keep in mind that the first ones came up at times when the drag freights were still common and competition from trucks wasnt a real threat so it didnt force the railroads to compete with them yet.
:)
 
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As far as I know the USRA 2-10-2 and 2-8-8-2 engines were designed as drag freight engines so 35mph is realistic.
 
As my framerates are choppy on my low end PC, I actually like driving slow ... in fact, most of my speedboards are 25mph, or slower ... and in yards I drive at 10mph, and mostly I drive at 5mph.

http://www.youtube.com/watch?v=zV8rA3UE-lc
Did this in MP on the Mojave the other day with 2998tons, 3 hours on the up hill, lol.

http://s134.photobucket.com/user/Azervich/media/azervich_20131026_0032_zps1e639dad.jpg.html

I like slow drag freights too, it's an aussie thing, move the most amount of freight with the least amount of Locomotives, an example is we can move 1500tons From North Geelong to Spencer St '74km' with a 950hp locomotive, if it wasn't for the 1.2% grades it'll move around 2000tons.

Cheers.
 
Thanks for all the replies. I'll stay with the 55mph specs.

@ cascaderailroad - you have more patience than I have. Moving along at only 25mph would drive me nuts and that would be a short drive.
 
Pop Pop: Just for info, I use Big Boy E-spec on 2-8-8-2"s..It Maintains 40mph..Which is I think is about freight speed..
 
I got the TS12 built in one to run 65mph with 1300 tons last night no problem, boiler got to 416PSI though :lol: .

However Bill69's espec is based of Billegulla's sheet which is based on TRS2004 values when you reduce the stroke on wheel diameter to get a smaller anim dist for 4 chuffs per revolution as that version didn't have 4 chuffs like today, only 2 however he adopted that into TS09 physics when TS09 uses real world values.

Cheers.

Bill69's specs are not based on Billegulla's spreadsheet now and is not based on TRS2004 values. The USRA 2-8-8-2 that I uploaded is limited to 35mph on purpose. It is quite easy to raise the max speed if required. It has since been updated again and should be available soon at www.steammachine.com/bdaneal.

Cheers,
Bill69
 
Bill69's specs are not based on Billegulla's spreadsheet now and is not based on TRS2004 values. The USRA 2-8-8-2 that I uploaded is limited to 35mph on purpose. It is quite easy to raise the max speed if required. It has since been updated again and should be available soon at www.steammachine.com/bdaneal.

Cheers,
Bill69

Ah okay,

It's that some of your e-specs I looked at on DLS where mainly done with Billegulla's sheet with minor changes, mainly to the efficiency's and safetyvalve flows so I thought all of them where, Assuming the OP is using TS12, that version has no max speed limit when it comes to Steam Locos unless he means DCC, normally when someone says steam e-specs they mean Cabmode.

Cheers.
 
Hi Azervich,

The USRA 2-8-8-2 was the first loco I updated, I did use Bill's spreadsheet on that one while learning the functions of various tags. I now make up my own from the actual loco specs which I can usually find in the Wiki. I have also found you can vary the specs considerably to mimic the performance of the prototype. E-specs for the prototype do not always match the performance in Trainz. If by "that version" you mean the one I uploaded it has a speed limit of 35mph in DCC mode and you might manage to get 40 or 45 mph in cab mode. The speed limit set in the motor section does have an effect in cab mode too but not so precise as in DCC mode. There is also a new tag required in the motor section "full-throttle-speed" if you want to avoid warnings. I don't know if it will have the same effect as the "max-speed" tag but I set it at the same value, I have not tried removing the "max-speed" tag yet but it might be made obsolete in later versions.

Cheers,
Bill69
 
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@ cascaderailroad - you have more patience than I have. Moving along at only 25mph would drive me nuts and that would be a short drive.

Hehe, a day of work at that time we are speaking about could have been up to 16hs, now you know why!
If you want something racy, Lilb might have something for you soon.
:)
 
Bendorseys 2-8-8-2? I've never made a steam loco in my life. Think you have me mixed up with Ben Neal, lol.

Ben
 
Hi Azervich,

There is also a new tag required in the motor section "full-throttle-speed" if you want to avoid warnings.

Cheers,
Bill69
That's a TC3+ tag, I've actually linked it to AI control, it tells the AI when the regulator should be set too 100% and doesn't actually do anything to the e-specs, so it's like saying 'I'm at this speed, I should be in full regulator now' .

The only thing I found useful with Billegulla's sheet was it solved the negative billion coal load and invisible bogey problem in TS2009.
 
Well maybe it is a TC3+ tag but it did not throw up warnings in TS2009 and does in TS12.

What invisible bogey problem was there? I have never found anything that I would call a problem in invisible bogeys.

While it is true some invisible bogeys caused weird sound effects in TS12, that was caused by creators trying to get four chuffs per revolution in
TRS2004.
I did do some mods in TRS2004 to get four chuffs or even six chuffs per rev myself, it wasn't difficult.

Cheers,
Bill69
 
Not a invisible bogey, but the drivers going invisible and a negative billion coal load showing on the hud then you could not move the locomotive, I have a screenshot over on victrainz, hopefully with a bit of digging I can find that SS and post the problem.

Cheers.
 
I've never had either of these problems.

From another post of yours I see your calcs. are much the same as mine for the 'piston vol. min' and the 'piston vol. max'

Cheers,
Bill69
 
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