Mega-strong Diesel

[Ghost42]

Have noticed in the past steam locos that seem to pull too well under AI, this afternoon I tested out a route (while I got on with other things)) using AI and the Diesel pulled 1700 ton up a 2% grade at a steady 40mph which by my calculations requires at least 6000hp.
Can a realistic performance be obtained from AI or get in the cab and diy?
Class 47 on a US route, I love the cab

 

[nathanmallard]

Seems impossible. Class 47s only had around 2500hp. Deltics only produced around 3500hp and even the most powerful British diesel, Kestrel, only produced 4000. You'd need a Union Pacific DDA40X to pull that train at that speed. Or a Class 91, but I'm guessing the route is not electrified
(Believe it or not, Class 91s have been rated at 6300hp, so they are about as powerful as the DDA40Xs!)

 

[oknotsen]

He had a VERY strong tail wind .

 

[JCitron]

That's why I have the AI drive.

 

[Ghost42]

That's why I have the AI drive.

Nice one

 

[hiyo]

Pretty sure the AI works on DCC physics rather than realistic mode

 

[oknotsen]

Pretty sure the AI works on DCC physics rather than realistic mode

100% sure AI uses DCC.

 

[Azervich]

AI's are not effected by train weight as they have no definition of tractive force to resistance, so they'll pull anything, for example 340kn will take 1500 tonnes up a 2% but 280kn will stall, if AI's had a T.E limiter then they'll stall too.

Cheers.

 

[Vern]

I haven't got the loads book in front of me but I'm fairly certain a Class 47 would not even be able to lift that weight up a 2% (1 in 50) gradient without either being double headed or banked in the rear.

Off the top of my head, the overnight sleeper trains out of Inverness used to load to ~15 Mark One vehicles, around 600 tonnes trailing with a ruling gradient of around 1 in 60.

The old 1S19 Bristol to Glasgow/Edinburgh overnight was a similar load with a Class 47 and had to be banked up the Lickey Incline (1 in 37) from Bromsgrove to Blackwell.

Sadly - with the possible exception of the Chinese and Russian stuff in TS12 - in my experience the physics of most of the traction (and DMU/EMU) in Trainz old and new is seriously OP. Add to that most of the assets don't even consume fuel so it takes a pretty huge dent out of the realism factor. It's something N3V and asset creators ought to be aiming to improve, IMHO.

 

[hiyo]

I started a similar thread on this topic a while ago: http://forums.auran.com/trainz/show...s-of-locomotives-required-for-mountain-routes

Long story short, if the creators of the content you are using have correctly configured the engine and wagon specs you should be able to replicate real life.