Some steam locomotives now. First, the LBSCR D1 class (http://www.semgonline.com/steam/d1%28lbsc%29_class_01.html), similar to the A1 "Terrier" class but larger and more powerful (and, significantly for Experimental users, also heavier: this will not run on wrought iron track, unlike its smaller sibling). This locomotive is useful for suburban passenger traffic of the sort commonly carried by the Brighton line in and around London. This locomotive should go well with the LBSCR suburban carriages here (http://forum.simutrans.com/index.php?topic=6533.msg62756#msg62756), or alternatively the existing 4-wheel LBSCR carriages painted by Kieron and The Hood some time ago.
Secondly, a locomotive already in the latest Experimental release that I'd finished some time ago but hadn't got around to uploading here for the benefit of Standard users: the BR Standard (no pun intended) 5MT; an evolutionary development from the famous LMS "black 5" design, which SDog has already put to good use in an Experimental game here (http://forum.simutrans.com/index.php?topic=6375.0).
.dat and .png files attached; translation texts below:
LBSCR Class D1 0-4-2T
BR Standard Class 5MT 2-6-0
Here is a Midland Railway 1833 class tank locomotive, built between 1873 and 1900: see here (http://basilicafields.wordpress.com/2010/04/21/midland-locos-pt-2-johnson-0-4-4ts/) for more information. This should be a useful locomotive for outer suburban passenger traffic in the late 19th century.
Attached are the .png and .dat files. English translation texts as follows:
MR 1833 Class 0-4-4T
Edit: Updated image and .dat file: the original image was re-scaled in the GIMP, but did not look right, so I re-scaled it in Blender and re-exported it, and now it looks much better.
SLOW! or pak.britain will explode ;)
Thanks for the wonderful material you are adding to the rail pak.
At the risk of causing a pakset explosion, here are some useful additional tender locomotives for light passenger work from t he 1890s to the 1930s made by recycling existing graphics (and, in one case, recolouring them). The LMS 4P, LMS 2P and MR 483 class were all based on more or less the same design, and did not look significantly different from the exterior, with the exception that the 4P and 1000 class had outside cylinders, whereas the 483 and 2P did not; however, I do not think that the presence or absence of the relatively small outside cylinders of the 1000 or 4P would be noticeable at pak128 scale. The 2p I have made black by recolouring the graphics, as such small locomotives would have carried this livery in the days of the ever frugal LMS.
These are all based on the existing MR 1000 class, a compound locomotive of power classification 4P. Having small tender locomotives, as opposed to tanks, is useful in Experimental because they have less weight for the same amount of power, albeit they take longer to turn around at the end of the journey and tend to be more expensive to build. I noticed that SDog made good use of light tender locomotives (the much later BR 4MT) in his recent saved game. The 483 / 2P is an even lighter (and cheaper) version of the 1000 / 4P and can be useful for lightly trafficked rural lines. They are all passenger locomotives.
.dat files and recoloured .png files attached; translation texts below:
MR 483 Class 4-4-0
MR 483 Class 4-4-0 (tender)
LMS Class 2P 4-4-0
LMS Class 2P 4-4-0 (tender)
LMS Class 4P 4-4-0
LMS Class 4P 4-4-0 (tender)
How on earth do you keep on making these so quickly?
The last ones were made by recycling the graphics of the MR 1000 class, so that didn't take a great deal of time :-)
A very slightly updated locomotive that I have released before (itself made by recycling existing graphics), the LSWR N15, with a slightly more accurate shade of green to match the carriages in this (http://forum.simutrans.com/index.php?topic=6533.msg62972#msg62972) thread. Only the graphic is new, so only that is attached.
Here are some LMS 4P 2-6-4T express tank locomotives for use on lighter express passenger trains or intermediate regional services; they are both predecessors of the BR 4MT 2-6-4T, and the graphics are derived from that locomotive. The first is the Fowler version introduced in 1927, and the second the Fairburn version from 1945 (which is very similar indeed to the BR 4MT).
.png and .dat files attached, translation texts below:
LMS Class 4P 2-6-4T
LMS Class 4P 2-6-4T (Fairburn design)
Here is a small tank locomotive from the LMS from the 1930s: the 2P 0-4-4T. An evolution from the MR 1833 class (above), this locomotive was commonly used for push-pull workings.
.dat and .png files attached: English translation texts below:
LMS 2P Class 0-4-4T (push-pull)
Here are some push-pull versions of existing LMS, Midland and BR locomotives to work with the push-pull carriages fron this (http://forum.simutrans.com/index.php?topic=6533.msg63090#msg63090) thread. In Experimental, they can all be upgraded from their standard types. There are no new graphics for these, as they are not noticeably different at Pak128 scale. Note that, although the MR 1632 class, based on the MR 2441 class, and the LMS development often called the "Jinty" were officially classified as freight locomotives (having a classification 3F), a number of them were adapted to use with push-pull sets: see here (http://glostransporthistory.visit-gloucestershire.co.uk/Push%20Pull%20YTT.html) for an early example.
Here is the non-streamlined version of the LMS "Princess Coronation" class, the original streamlined version being included with the pakset for quite some time. These top-link express locomotives were built during and after the War without their streamlining, and the streamlining was removed from existing locomotives from 1946 onwards, as it was found to be of limited benefit, and served to increase the locomotive's weight and maintenance costs. Accordingly, the non-streamlined version is cheaper to buy and maintain than the streamlined version, and, in Experimental, can be upgraded from the streamlined version at modest cost.
.png and .dat files attached, English translation texts below:
LMS Class 8P "Princess Coronation" 4-6-2 (non-streamlined)
Two tanks here from the LBSCR, the pioneer of the express tank locomotive; the first a slightly smaller version of the enormous "Brighton Baltic" "L" class tank already included; the "J" class, which, although only two were ever made, was a successful design, and fits a useful gap in the size/performance ratio. The second, the I3 tank, has an important place in the development of locomotive design, as it was the first production locomotive in the UK fitted with superheating, resulting in far better performance and economy for the weight than was previously possible.
.png and .dat files attached, English translation texts below:
LBSCR Class J 4-6-2T
LBSCR Class I3 4-4-2T
Another LBSCR tank in descending order of size from the previous examples, this time the outer suburban passenger E5 0-6-2T tank from 1901, which was, at the time, the largest tank engine operated by the LBSCR.
.png and .dat files attached, translation texts below:
LBSCR Class E5 0-6-2T
Some more graphics recycling: the LNWR "Precedent" class using the graphics of the outwardly near identical later LNWR "Jumbo" class, already in the game. The "Precedent" is important because a great deal of information exists about its performance, having been involved in the Newark Brake Trials, and I have added it in order to assist with steam locomotive physics balancing. This should be tuned to more or less accurate performance in Experimental.
.dat file attached, English translation texts below:
LNWR "Precedent" Class 2-2-0
LNWR "Precedent" Class 2-2-0 (tender)
I have recently uploaded a large number of new steam locomotives to the Pak128.Britian-Ex Github repository, and thought that it might be worthwhile announcing them here. Unfortunately, as discussed in this (http://forum.simutrans.com/index.php?topic=7787.msg74082#msg74082) thread, vehicles whose .dat files are written to take advantage of Experimental's new livery feature are not, without adaptation, compatible with Standard (although I have posted an extension request in the Standard board, as in the above linked thread). Many of these vehicles have livery schemes defined, so will need some adaptation to work with Standard. Nonetheless, I post them here for interest and in case anybody does want to adapt them for use in Standard. I shall not reproduce all of the files here, as there are a great many of them, nor do I yet have translations, but I shall link to the pictures on my Github repository (https://github.com/jamespetts/simutrans-pak128.britain), wherein the .dat files may also be found (under "/trains").
The purpose of these new locomotives is to fill in gaps in the 19th century (although there are also a few early 20th century examples). The focus is primarily on the London & North-Western and Midland Railways, although there are also some from the London, Brighton & South Coast Railway (augmenting the considerable number of tank engines of that railway added in the last round of new locomotives).
Herewith the list:
LBSCR C1 class
Planet Goods locomotive
LMR Bird class
LNWR Crewe-type locomotive
LNWR Sharp tank locomotive
LNWR Sharp goods locomotive
LNWR side tank
Midland 480 class
LNWR McConnell side tank
Midland 133 class
LNWR B class
LNWR G1 class
Midland 800 class
Midland 700 class
LBSCR C class
LNWR 17in coal engine
LNWR 18in goods engine ("Cauliflower" class)
LNWR 0-6-2T "Coal tank"
Midland 1738 class
Midland 1357 class
Midland 1377 class
LNWR "Mansion House Tank"
LBSCR D2 class
LNWR George V class
LNWR Whale Precursor class
LNWR Claughton class
LNWR Precursor tank class
LNWR "Prince of Wales" tank class
The New Trainvehicles looks good out!
Cam the Vehicles all in the Paksets
would it be possible to have a zip file / git download of just these new ones? The list is rather long to sift through and pick out just the new ones! I will happily adapt dat files to standard.
Have you tried downloading a .zip of the whole repository, then sorting by date within the .zip file? If that doesn't work or is impractical, I can sort you out a special .zip file, but I have quite a lot of work on this week-end, so it might be a little while before I can do it. Thank you for putting these into Standard, though. Do you think that the LNWR Coal Tank might be a bit out of scale?
I managed to get the files from a download of the repository. One thing I've noticed though - most of the new trains are 180o out - the wrong images are being pointed to... I've fixed that for the standard ones, but I've also combined the images into a single file per loco as per the convention with the rest of the standard images. There are also some alignment issues on some of the locos which I have fixed in standard with image offsets.
Hmm - that's odd: I don't find that the wrong images are being pointed to when I see the vehicles in game, and the code for this is not different in Standard than Experimental. Which locomotives are affected?
Incidentally, is there a reason to combine the images? The idea of having separate images is to eliminate the need to go through a separate step of aligning the images onto a template graphic and then paint over the template guidelines for each vehicle by use of an automated exporting script. I find that this saves a great amount of time. Do you not think that this is a useful way to proceed?
I'm mainly against individual images because of the sheer number this would entail - I don't like having too many files floating around in one directory. Incidentally Zeno's ImageMasker programme combines the images into one at the click of a button (use the same image as mask). I'm considering asking for the source so I can make it fit better into the pak128.Britain workflow.
For the rotations, all new images except the LBSCR ones and the LMR Bird are affected.
As to the orientation - that is very odd indeed. The LNWR Prince of Wales Tank, for example, displays correctly in Simutrans-Experimental 10.x pre-release with the following code for the graphics:
The LMR Bird uses this code:
Both display correctly, and in both cases the orientation specified in the EmptyImage[xx]= line matches that in the image file name. Looking at the images themselves, lmr-bird_S.png (the Southern image) has the front of the locomotive facing the bottom left of the image; likewise, lnwr-PoW-tank_S.png also has the front of the locomotive facing the bottom left of the image. So, the orientation of the images in both cases is the same, as is their representation in the code; I am confused, I must say, as to how the LNWR Prince of Wales tank is rotated and the LMR Bird is not; are you sure that it is not a mistake at your end?
As to the workflow; I am not familiar with ImageMasker; do you currently use that for exporting Pak128.Britain graphics? I have a vague recolleciton of software designed for working with masking, but doesn't that require a totally different workflow (producing images with a different appearance) to those used in Pak128.Britain?
I've just looked into this too - seems that the images that "don't work" are the ones I did after I realised I could do it in ImageMasker - must have been tired when I checked as in fact your original source images are fine. Sorry for the scare! I don't normally use ImageMasker but it does combine 8 source images from blender into a single png quite nicely (except the bar at the top which I have to remove manually at the minute). It was designed for use with a "mask" render and to allow automatic conversion of player colours, but using the same image for base and mask means this functionality is not used.
Thank you for re-checking that.
Hmm - interesting, re: ImageMasker. Does it re-align the images from centred images (as are outputted in Zeno's original script), or does it require pre-aligned images (as in my modification of Zeno's script)? If the former, does it produce different alignments for road vehicles than for other vehicles as is necessary to align them correctly? Currently, my Victorian mail carts are not properly aligned.
Don't think it realigns images, and I wasn't aware that the blender render script auto-centres images. As far as I know it just depends on where the object was and rotates the camera. As I mentioned above some of your new images are misaligned anyway, which would imply your script doesn't work as well as intended. IIRC, if you set the object in blender so that the front of the image is four blender grid squares from the origin that should get it to align correctly.
Edit: not sure the alignment thingy works perfectly with Zeno's script after all - that's a hangover from the old workflow I inherited from Kieron...
Are you referring to Zeno's original script here or my edited version of it? The errors in alignment in my images may be a fault of the position of the vehicles in Blender rather than the script itself.
Zeno's original script puts the vehicles in about the middle of the 128x128 block, which is not correct for Pak128.Britain. My revised version of the script puts them in the positions necessary for them to align properly without being processed further (at least, most of the time: I had some trouble with the re-liveried Mk. III vehicles, but it looks as though those were made with a slightly different workflow for some reason).
Three more steam locomotives, also on Github, and in Pak128.Britain-Ex 0.8.2 (released to-day):
LBSCR E1 class
LBSCR E3 class
LBSCR E4 class
There are also some improved graphics for two LBSCR classes - the D1, which looks better generally, and the C and C1, which now have the correct "goods green" livery, instead of the "improved engine green" (ochre) passenger livery incorrectly carried before:
LBSCR C1 class
LBSCR C class
LBSCR D1 class
Here is the Metropolitan "A class". Although used primarily on the Metropolitan Railway in London, these were also used by the LNWR, MR and LSWR. For the time being, only LNWR and MR liveries are included (for Experimental). I suggest that the Standard version takes the LNWR red livery. Translation texts below:
A Class 4-4-0T
I have added this locomotive because I noticed on looking at AEO's saved game here (http://forum.simutrans.com/index.php?topic=8910.0) that there was a shortage of heavy suburban locomotives in the 1860s. This particular locomotive was widely used and lasted many years, so is a good candidate. Metropolitan and LSWR liveries might follow later when I produce more stock for those railways.
Here is an early LBSCR tank locomotive of 1855 (see here (http://early-lbscr.co.uk/rowfant/Rowfant/montage.jpg) and here (http://early-lbscr.co.uk/scratchb/Pannier/complete.jpg) for images of a model of this locomotive, the only reference for it that I have). I did not have technical data for this one, so I have assumed it to be similar, but slightly smaller than the LNWR side tank of the same era.
The translation text is:
LBSCR Craven 0-4-2T
Edit: Below is an in-game screenshot of it with some of the new early LBSCR carriages.
Some slight reworkings of locomotives from last summer, with realigned graphics and more accurate power and speed figures: the LMR Planet goods locomotive and the LMR Bird class, both 1830s era locomotives. Files attached.
All of the latest additions/mods are in Standard now.
Excellent. I can do a Metropolitan livery for the A-class when we get the Underground things started (which would probably be the best livery for Standard, as that was the livery in which it appeared most often).
Hmm - I produced a graphic for a Midland Railway 800 class ages ago, but only this evening realised that I forgot also to produce a .dat file for it. I have also updated the graphic. The new .dat file is here (https://raw.github.com/jamespetts/simutrans-pak128.britain/master/trains/mr-800.dat). The graphics are below:
The locomotive uses the 156 class's tender. The translation text is as follows:
Midland 800 Class 2-4-0
Incidentally, I have re-scaled the graphics for most Midland Railway locomotives, including the 156 class which was part of the original Pak128.Britain from some time ago, as they were all too large. I recommend using the re-scaled graphics (and accompanying .dat files, as the new graphics are in different formats) in Standard, too, as the old graphics look awfully out of place.
Here's a minor addition: the LNWR Newton class: very similar to the LNWR Precedent class, except an earlier and less powerful version, without a full cab. This fills in a gap in the LNWR timeline in the late 1860s/early 1870s. The tender is the same as for the Precedent and Jumbo classes.
.dat file here (https://raw.github.com/jamespetts/simutrans-pak128.britain/master/trains/lnwr-newton.dat)
LNWR "Newton" Class 2-4-0
the new railvehicels look good out.
Here is the LNWR 5'6 radial tank: a very common locomotive for local/outer suburban/light semi-fast passenger services. Outwardly, this was nearly identical to the earlier Mansion House tank, except that it had much larger driving wheels, resulting in a higher top speed but lower tractive effort. In the Experimental version, it comes in three liveries: LNWR, LMS and BR. The .dat file can be found here (https://raw.github.com/jamespetts/simutrans-pak128.britain/master/trains/lnwr-5ft-6-tank.dat).
The original LNWR livery version of the graphics are here:
The translation texts are as follows:
LNWR 5'6 Radial Tank 2-4-2T
Quick question James - there are two 4MTs now in your pak, a 4-6-0 and 2-6-0 version. Which one is the one previously called 4MT?
Ahh, that's a bit confusing - previously, I'd had the graphics of the 2-6-0 but with the name and details of the 4-6-0.
I have been improving the graphics of a number of the steam locomotives, as well as producing one or two more. As ever, .dat files and updated en.tab on my Github repository (although I should caution that I have recently completely re-calibrated the power for Experimental, so this might have to be adjusted for Standard).
First, the updated graphics. Some of the updates are very minor, just to ensure consistent alignment; some are re-scaled, and some are significantly changed (such as the Bloomer and Terrier).
GWR Bulldog Class
GNR C1 "Large Atlantic" Class
LNER/WD J94 Class (Choice of liveries available)
LBSCR A1 Class
Next, the new locomotives. Where there are no separate graphics for the tender, the graphics of another locomotive's tender are used.
LBSCR H1 "Atlantic"
MR 1783 Class
MR 2736 Class
GWR City Class
GNR "Klondyke" Class
MR 27 Class
I can't wait to use all these new trains!
Thanks - I will include these in a few weeks when I'm back from holiday.
Here is the Midland 2781 class, the 4-4-0 express passenger locomotive introduced in 1900, two years before the later 4-4-0 compounds of the 1000 class (the latter being in the new numbering series), being an intermediate step between the power class 2 locomotives such as the 2301 class and the larger power class 4 locomotives such as the 1000 class:
Please note that I have re-done the .dat files for all of the Midland 4-4-0s apart from the 1000 class in response to further research showing the original research to be inaccurate, particularly the Wikipedia article for the Midland Class 483, which incorrectly implied that the class was built more or less unchanged from 1883 - in fact, the locomotives built in 1883 were in no way the same class as locomotives built in the 1910s, and had in common only that they were power class 2 4-4-0s: please see my Github repository for a fix to this confusion, including a new .dat file for the 2781 class (https://github.com/jamespetts/simutrans-pak128.britain/blob/master/trains/mr-2781.dat), which shares graphics with an earlier 4-4-0 because they were visually indistinguishable (at least, as far as could be seen in Simutrans graphics), but were a little more powerful.
Just infilling the Southern express loco timeline as part of my rebalancing project. Here is the Lord Nelson class of 1926:
Edit: Any chance of lending a hand to the rather busy maintainer of the Experimental version of the pakset by producing this in multiple liveries (malachite, wartime and BR)?
I'll have a go. I can't help thinking the existing SR livery is too pale/bright for malachite green though. Do you have any thoughts?
I thought that the livery in the picture was supposed to be Maunsell era "olive" green...? It looks more or less right for that. The malachite green of the Bulleid era in the game is really very bright indeed (see the 4-COR, for instance).
I was refering to the malachite green currently on other images. How about the one in here?
That's very nice! There is an error with the very first graphic, however, in that there are areas where the background has taken over the dark parts.
Here's a revised Merchant Navy along with livery variants...
Very nice! Can you upload .blends of these so that I can add them to my archives?
Edit: It would be useful to do this not least so that I can use the same malachite colour on other SR vehicles that I do, as I have a large number of (ex-)LBSCR locomotives and carriages in malachite green (although it will take a long time to change them all...)
These are very good indeed, nice to see the pre-grouping vehicles getting a comprehensive treatment.
Re the LSWR I know we have an M7, but if you're after suggestions I'd suggest looking at a number of the Adams/Drummond/Beattie designs that were long-lived e.g T9, 415, 0298 classes, to pick just a few.
A proper LSWR set is on my list, but I need to finish the Midland carriages first, after which I need to get a better selection of LBSCR locomotives - and that is after finishing re-doing the BR Mk. I carriages with better bogies and a full set of liveries up to the end of the nationalised railway, which I have to intersperse with coding...
West country in updated malachite and BR green - don't think these ever carried black or blue.
Hello The Hood
The Steam locomotives they you have be paint looks very cool out.
But in what for year was those Steam locomotives in use?
The SR West Country class (http://en.wikipedia.org/wiki/SR_West_Country_and_Battle_of_Britain_classes) were built from 1945-1951, and were used until about 1966/1967.
SR Schools liveries. Wartime black can also substitute for BR Black (early BR livery)
Nice :) Can I just make a small request though (and this applies to Simutrans Experimental use too). Any special livery for the periods 1914-1918 and 1939-1945 should be designated Railway Executive Committee as opposed to any other name. We don't try to simulate any particular aspects of wider political history in Simutrans. Cheers :)
Looking lovely! As to the names - was "Railway Executive Committee" the exact name for the railway operations during both wars? I know that some locomotives were specifically branded "WD" (for "War Department"), but that might have been a rather separate thing.
Railway Executive Committee ran the railways during both wars yes. The name "British Railways" was also used during 1939-45( 8 ) and is also acceptable. Note the the period 1945-48 is a little murky as the railways hadn't been returned to private ownership yet hadn't been permanently nationalised either. REC, BR, LNER, LMS, GWR or SR would be acceptable in these years
"WD" locomotives were intended for use by armed forces overseas (although when there was nowhere for them to be used overseas they were sometimes used within the UK). "WD" locomotives fall outside the scope of Simutrans.
Even the 2-10-0 and 2-8-0 locomotives that were actually used in UK traffic?
The ones which were bought by LNER/BR after 1945 ceased to be WD locomotives from that point :)
Ahh, so the locomotives are relevant, but the "WD" name is not (except as a descriptor for those locomotives)?
Incidentally, I rather suspect that "Railway Executive Committee" is too long for the Experimental livery scheme dialogue box - do you know whether it was known by an official or semi-official shorter name at the time?
Edit: On testing, only "Railway Executive" is visible.
Indeed. WD use (whether within or outwith the UK) would fall outside the scope of Simutrans. Even as a descriptor it should be left out as ones remained in WD use after 1945.
Use on regular freight would of course be acceptable, but for this I would introduce these as "Austerity 2-8-0" in 1945 and "Austerity 2-10-0" in 1948.
Certainly for the purposes of livery the period 1939-1948 could be treated as an extension of the British Railways era as the name began to be in use during this time.
Currently, I have a "Wartime austerity" livery scheme for both wartime periods, which I have experimentally renamed to "Railway Executive Cttee." based on your suggestion, although only "Railway Executive" is visible as noted above. The company liveries remain active until 1948 in their own schemes, allowing players the choice of whether to implement wartime liveries or not.
Incidentally, was it not the "Railway Operating Department" in the First World War (shortened to "ROD" on many locomotives)?
You could just name the scheme Austerity? Infact this could be a general term used for black liveries used during these periods?
ROD 1914-1918 is equivalent to WD 1939-1945 and should be avoided.
I suspect "Austerity" is the best way forward. That said, I really can't see the problem with calling locos WD for War Department or having a Wartime livery - it's just historical fact. It doesn't encourage war or turn simutrans into a war game in the way I can see people might object to transporting troops or munitions around.
Anyway I spotted some realignment problems with earlier uploaded graphics.
Hello The Hood
The new photos from the vehicle looks very good out.
Are the .dat files (and fixed graphics) for the Lord Nelson class available yet? I should like to add these to Experimental, together with calibration of physics. Also, would it be possible to upload .blends? I should be very grateful.
Edit: In this (https://github.com/jamespetts/simutrans-pak128.britain/commit/c8355a9f8946ebc571ee54d6c791b2c1061fb988) Git commit, I add the Midland Railway Class 25, as well as recalibrate the power, tractive effort and top speed of some other locomotives, and add one or two other slight variations of Midland locomotives in the 4-2-2 or 4-4-0 configuration (for express passenger work). Only the Class 25, however, has new graphics:
although I have also re-done the graphics of the 115 Class ("spinner") to match:
James, whenever I try to find out about MR loco classes the class numbers seem to differ from the ones you give. It seems there was some fluidity in their use as to what consitituted a class or sub-class. Could you please give me a description of each loco you've added (if possible including the previous MR locos) with wheel arrangement and typical use (express, secondary etc) so I can balance them approrpiately for standard? Thanks
Certainly. You are right about the fluidity of class numbers: the class numbers were simply based on the number given to the first locomotive of the type built. Very often, a locomotive of broadly the same sort was built for many years and incremental changes were made to the design of the new ones built during that time, without any formal consideration of what precisely constituted a new "class". All of the locomotives that I have added here fall into that category.
What I have added is essentially a set of 4-2-2s and a set of 4-4-0s, in both cases different points in the evolution of a single design. They are all express passenger locomotives.
Starting with the 4-4-2s, we have, in chronological order:
the 25 Class;
the 115 Class ("Spinner"); and
the 2601 Class.
Information on the various types of 4-4-2s can be found here (http://chasewaterstuff.wordpress.com/2012/04/07/steam-locos-of-a-leisurely-era-1887-johnson-4-2-2-midland-railway/), whilst technical details are found here (http://orion.math.iastate.edu/jdhsmith/term/slgbmr.htm) (the class number is not given for the 25 Class).
Moving onto the 4-4-0s, we have, in chronological order:
the 1327 Class;
the 1738 Class; and
the 2203 Class.
We already had classes called the 1738 Class and 2203 Class; the 2203 Class has not changed in principle (but I have recalibrated it a little); the 1738 Class, however, was previously intended to be a representation of both the 1327 Class and the 1738 Class, and I have separated the two so that what is now the 1738 Class does not become underpowered in the later years, but is replaced by a more modern locomotive with more power. Details on the classes of 4-4-0s can be found here (http://en.wikipedia.org/wiki/Midland_Railway_Class_2_4-4-0) (that excludes the later and more powerful 4-4-0s), and techincal information, as before, can be found here (http://orion.math.iastate.edu/jdhsmith/term/slgbmr.htm). Oddly, that website refers to a "1740" class, which must in fact be the 1738 Class. Similarly, it calls what I have called the 2203 Class the 2183 Class.
The main difference between the 4-4-0s and the 4-2-2s in this era appears to have been that the 4-4-0s had more tractive effort, whereas the 4-4-2s were capable of higher speeds with any given load. Quite how that can be replicated in Standard I do not know. There also seems to have been quite a rapid development of locomotive power in the last years of the 19th century and early years of the 20th century - even before superheating was used: for example, the 2203 class of 1893 (a 4-4-0) has a lower power and the same tractive effort than the 2601 class of 1900.
You write that you would also like me to give some information as to some previous Midland locomotives - which other locomotives would you like me to describe? Would it help for you to see my steam locomotives physics balancing spreadsheet, which is here (https://github.com/jamespetts/simutrans-pak128.britain/raw/c8355a9f8946ebc571ee54d6c791b2c1061fb988/steam-physics-calcs.ods)? Is what I have described here sufficient for your purposes? I hope that this is helpful.
I have now added the Lord Nelson class (I have produced my own .dat file) and the multiple liveries for the other locomotives here, as well as retrospectively adding the BR blue livery for the LNER A1/3 and A4 for which The Hood had previously made graphics but for which I had not set up the livery schemes, to the Experimental Github repository.
To add the Lord Nelson class required that I fixed the graphics of the olive green version: a fixed version can be found in my Github repository.
Would it be possible to have .blends of these for future reference?