--- title: DE 11000 Locomotive slug: de-11000-locomotive-bb561 url: /detay/de-11000-locomotive-bb561 type: article language: English entity: primary: DE 11000 Locomotive type: article disambiguation: DE 11000: Turkish diesel shunting locomotive. Bo'Bo' axle, 80 km/h. Used by TCDD since 1980s. categories: - name: Vehicles And Transportation Technologies slug: tasitlar-ve-ulasim-teknolojileri url: /kategori/tasitlar-ve-ulasim-teknolojileri tags: - Diesel-electric - DE 11000 - Modernization - TCDD - Tülomsaş author: Yusuf İslam Tuğla created_at: 2025-05-30T18:49:11.553280+03:00 updated_at: 2025-06-14T00:25:36.031385+03:00 image: https://cdn.t3pedia.org/media/uploads/2025/05/30/JcsxkS8nI5BfDfKT5EWAh6dCsiQCwouH.png --- # DE 11000 Locomotive ## Article Content The [DE 11000 locomotive](/en/detay/de-11000-lokomotifi-af723/llms.txt) is a Bo'Bo' axle arrangement series with a [diesel-electric](/en/detay/diesel-locomotive-3bebe/llms.txt) drive system used by the Turkish State Railways ([TCDD](/en/detay/tcdd-e30bd/llms.txt)) for shunting and short-distance freight transport tasks. Entering service in the 1980s, these locomotives—some of which were imported from [Germany](/en/detay/rail-railway-3411e/llms.txt) and others domestically manufactured by [TÜLOMSAŞ](/en/detay/turkiye-railway-academy-68148/llms.txt)—are powered by 785 kW MTU 8V396 engines and can reach a maximum speed of 80 km/h. It represents a transitional product in Türkiye’s domestic locomotive technology. With its high traction power, compact structure, and modernizable technical infrastructure, the DE 11000 remains in active use today and stands out as one of TCDD’s most common diesel shunting locomotives. ### **Beginning of Import and Domestic Production (1985–1990)** The first 20 units of the DE 11000 locomotives were manufactured by Germany’s Krauss-Maffei company for TCDD. These locomotives were preferred for station shunting operations due to their diesel-electric drive systems and Bo’Bo’ axle arrangements. Put into service in the field as of 1985, they drew attention with their ease of maintenance and strong traction performance. Soon after, the remaining order of 65 locomotives was produced under license at the TÜLOMSAŞ facilities in [Eskişehir](/en/detay/eskisehir-il-2/llms.txt), in line with policies to support domestic industry. This move was part of Türkiye’s vision to reduce dependence on foreign rail system vehicles and to enhance local engineering capabilities. ### **Service Process and Use in Education (1990–2015)** From the 1990s onward, DE 11000 locomotives began to be heavily used in major stations and freight transfer centers throughout Türkiye. The locomotive’s compact size and high traction power made it particularly suitable for shunting duties. During this period, the DE 11000 was also widely used in TCDD’s technical personnel training. Its systems were used as model examples in educational modules such as “Train Formation and Control,” thus contributing to the technical infrastructure of railway personnel. ### **Modernization and Transformation into the E1000 Project (2016–Present)** Starting in the mid-2010s, difficulties in sourcing spare parts for the original systems used in DE 11000 locomotives necessitated their modernization. In this context, the “E1000 Domestic Electric Locomotive Project” developed by TÜBİTAK Rail Transportation Technologies Institute (RUTE) and [TÜRASAŞ](/en/detay/turasas-devrim-cars-museum-adf0f/llms.txt) was based on the DE 11000 chassis. The E1000 project aimed to restructure the locomotives in terms of environmental sustainability, ease of maintenance, and digital control infrastructure by developing a fully electric system that replaced the existing diesel-electric system. With this modernization, the domestic production rate exceeded 85%, and the first locomotives produced under the project were actively used in field tests. In addition, as stated in the TCDD Training Catalog, DE 11000 and E1000 locomotives are still used as practical tools for personnel receiving railway training. ![Image](https://cdn.kureansiklopedi.com/media/uploads/2025/05/30/GvtLv3PJRsxXSDwXt263EgnUIgDibsYX.png) *DE 11000 Locomotive of TCDD (Generated by Artificial Intelligence)* ### **Technical Specifications and Equipment** The DE 11000 locomotive has a Bo'Bo' axle arrangement, consisting of four axles, each with two wheels. Thanks to a system that transmits the diesel engine's energy to electric motors, the locomotive generates high traction force while offering certain advantages in maintenance processes. The engine of the locomotive is from the MTU 8V396 series and has a power output of approximately 785 kW (approximately 1050 hp). The DE 11000 can reach a maximum speed of 80 km/h and provides up to 225 kN of tractive effort. With these features, the locomotive is preferred for station shunting operations and short-distance freight trains. Its electrical systems include dynamos, converters, control relays, and traction motors. The braking system is an air system supported by electro-pneumatic control. In-cab controls are integrated with various mechanical and electronic systems for train operation, braking, lighting, and signaling. ### **Its Role in Türkiye’s Railway System** DE 11000 locomotives are actively used in shunting operations at TCDD’s station and terminal areas, as well as in pulling short-distance freight trains. Thanks to its compact structure and powerful traction systems, it offers high maneuverability in narrow spaces. Moreover, this series—widely used in maintenance and training processes—serves as one of the model examples for technical education of TCDD personnel. ## Academic Sources and References 1. Anadolu Ajansı. “Foreign Supply Shortages Made Türkiye a Locomotive Manufacturer.” Accessed May 30, 2025. https://www.aa.com.tr/tr/ekonomi/yurt-disi-tedarik-sikintisi-turkiyeyi-lokomotif-sahibi-yapti/2196919 2. Ministry of National Education. Railway System Vehicles. Ankara: MoNE. Accessed May 30, 2025. 3. Ministry of National Education. Train Formation and Control. Ankara: MoNE. Accessed May 30, 2025. https://megep.meb.gov.tr/mte\_program\_modul/moduller\_pdf/Tren%20Dizisinin%20Olu%C5%9Fturulmas%C4%B1%20ve%20Kontrol%C3%BC.pdf 4. TCDD (Republic of Türkiye State Railways). Training Catalogue. Ankara. Accessed May 30, 2025. https://static.tcdd.gov.tr/webfiles/userfiles/files/egitim/egitimkatalog.pdf 5. Tonuk, Orhan. “DE 11 000 KM-ABB-MTU TÜLOMSAŞ Locomotive.” Orhan Tonuk Website. 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