Australia New South Wales Government Railways Diesel Locomotive 41 Class - Bo-Bo =========================================== Version 1.0 Files are date/time-stamped April/May 2010 ============================================ Original design and textures by Brian Bere-Streeter Email : bbss@bigpond.net.au ============================================ Contents: 1. Model details 2. Installation Notes 3. Prototype Notes 4. Copyright, Distribution and Terms of Use ======================================= 1. Model Details ---------------- 3D locomotive Models created with Train Sim Modeler by Brian Bere-Streeter Textures by Brian Bere-Streeter These models are for your personal use only, and may not be sold or distributed in any way without the creators' permission. The following models are provided in this pack: 4102, 4105, 4107 and 4110 - all in Verdant Green livery. I have arranged the locos to have a variety of different visual features found in the original locos. 4105 - with original radiator arrangement, as delivered 4110 - with modified extended radiator arrangement 4102 - modified with 'Chinese Pagoda' style hood cooling arrangement 4107 - with curved exhausts for working in tunnels - 'The Snail' I'm not doing see-through cab windows and cab interiors, too much extra work ! Until I find better ones, the Cab uses the DL531 cab from Steam4me and the Sounds use the default Kuju GP38. The way the textures are made and mapped it would be very time-consuming to do any other versions in the later Indian Red livery, so Green it is !!! The different combinations of features and numbers have been authenticated by photographs in the main 41 Class reference book described below. ======================================== 2. Installation Notes ---------------------- Double click on the self installing EXE file and follow the instructions. The models will be automatically installed in a new folder << AU_NSWGR_41 >>. One consist (a light engine) has been installed in the Consists folder, for each individual locomotive. This locomotive aliases to the original default Kuju GP38 Sound set - this must be installed for these locos to work. This locomotive aliases to the Alco DL531 high-hood cab available from the Steam4me site. http://msts.steam4me.net/cabviews/files/AU_ALCO_Hi-hood_cabview_MSTS1_Setup.exe This must be installed for these locos to work. The new 41 Class locomotives are installed in a separate folder to Ian Bowles / Gavin Woolf's / Richard Lauder's original 41 class locos, and can co-exist with them. To design additional consists of your own, use the Consist Editor. A tutorial for this may be found at http://msts.steam4me.net/tutorials/consists.html ============================================ 3. Prototype Notes -------------------- After having acquired their first twenty main line diesel-electric locos in the 40 class, the NSWGR turned to finding a diesel-electric solution to shunting and transfer trip work within the Sydney Metropolitan Area. After calling world-wide tenders, in 1950, an order was placed with a consortium made up from the English firms of Metropolitan-Cammell and British Thomson-Houston and their Australian representatives Australian General Electric. The locomotives were a Bo-Bo configuration with centre-cab and two Davey-Paxman 500 HP engines, weighing 70 tons. 4102 was the first delivered in service in December 1953 (4101 had been temporarily retained by BTH as a 'demonstrator' for a time after construction). 4101 and the next 7 locos were delivered by March 1954, however, as reports started coming in regarding over-heating problems, 4110 was retain to use for further testing. The model 4105 is representative of this 'as delivered' condition. After extensive tests with single and double-headed 41 class to Thirroul and Broadmeadow, it was found that the locos over-heated regularly - exhaust heat expelled from the front radiator side ducts was drawn into the rear radiatior with the result that the rear engine worked at significantly higher temperature than the front engine. When working double-headed, the second loco suffered even greater over-heating due to the cumulative effect, and it was found that modifications to the radiators and cooling system were absolutely necessary. 4110 was modified with a completely new radiator arrangement whereby the side radiator exhausts were removed, a slightly longer body fitted to each engine hood and new roof mounted discharge ducts with side baffles fitted. 4110 was finally in service in February 1955. Progressively the remaining nine locos were brought into works and modified as per 4110. The model 4110 is representative of this condition. Even with the modifications to the radiators and cooling systems, the class was continually plagued with various problems, especially with a series of ongoing electrical problems - it has been stated that at no point in their careers that all ten locos were in service together. One senior engineer suggested that if the hoods could be better ventilated to release the heat surrounding the engines, the temperature problem might be resolved. 4102 and 4104 were fitted in 1958 with rather ungainly raised vents above the hood, which were quickly known as 'Chinese pagodas' - these two were the only ones modified this way. During the electrificaion of the Blue Mountains line in 1958, 41 class were found to be very useful in hauling the Overhead Wiring train, as it could be quickly stabled and re-started to suit the work program, and was also found to be good when slow-speed working in all the tunnels at the Lithgow end of the line. However the upward radiator exhausts trapped the engine exhausts in an 'air-pocket' surrounding the cab - to prevent the build-up of poisonous gases, the engine exhausts of 4107 (which was the loco regularly assigned to OHW train workings) was modified with curved exhaust pipes so the gases were directed to the front and rear of the loco rather than straight up. 4107 quickly gained the nickname 'The Snail' - when the electrification works were complete it was found the curved exhausts rapidly corroded away, and normal straight exhausts were re-fitted. 4106 was extensively modified electrically in 1954 to try and resolve the constant electrical failures, but shortly after re-entering service, it was destroyed by fire, and was the first of the class to be condemned. The remaining nine 'clung desperately to life' until 1974, when the 73 class replaced them. Most 41 class remained in 'ever more decrepit' green livery, however several were repainted in Indian Red livery when overhauled in the late 1960's - 4104 and 4108 being confirmed photographic examples. The 41 class was essentially restricted to Sydney Metropolitan Area working only - their traditional 'home' was trundling along the Metropolitan Goods Lines between the major goods yards in Sydney. In later years 41's were used on the 'Via Crusis' pilgrim trains to Maryfields on Easter Friday, and were also used on the coal trains between Campbelltown and the coal loader at Narellan. 41's were also regularly used on the employee workmans trains to Enfield and Chullora - a 41 + a LUB set. Source: "Green Diesels - the 40 and 41 classes" by R. G. Preston published by Eveleigh Press 1997 "Locomotives of Australia" by Leon Oberg 1st edition published by Reed 1975. 2nd edition published by Kangaroo Press 1996 "A Century Plus of Locomotives" by ARHS 1st edition published by ARHS 1965 ============================================ 4. Copyright and Distribution ------------------------------- This train model is released as Freeware. Copyright (C) 2010 Brian Bere-Streeter As freeware you are permitted to distribute this archive subject to the following conditions: - This train is intended for private, non-commercial use only; - This model and any of its associated files may not be retro-engineered or used for any purpose other than its original intended use without the prior written consent of the author; copies of the model source file may be available from the model designer by email; - Persons wishing to repaint this model may do so by requesting copies of the original texture files from the author; all such repainted or modified versions must acknowledge the author of the original work; - This archive must be distributed without modification to the contents of the archive. Redistributing this archive with any original files added, removed or modified is prohibited without the permission of the author; in particular, this text in its entirety must not be removed or altered; - This model may not be distributed on CD without the prior written consent of the author; - The inclusion of any individual file from this archive in another archive without the prior permission of the author is prohibited; - No charge may be made for this archive other than that to cover the cost of its distribution. If a fee is charged it must be made clear to the purchaser that the archive is freeware and that the fee is to cover the distributor's costs of providing the archive; - This train is provided AS IS, I assume no responsibility or liablity for any MSTS or system hardware/software problems you may encounter after installing this train; - By downloading and/or using this model, you have agreed with these terms and conditions of use; - The authors' rights and wishes concerning this archive must be respected; - Copyrights: * MS Train Simulator, MS Windows: Copyright Microsoft Corp 2002 * 3D Model: Copyright 2010 Brian Bere-Streeter * Textures: Copyright 2010 Brian Bere-Streeter All other copyrights & trademarks mentioned are the property of their respective owners. =======================================================================