Again the Engineers and MRS units worked together on these rail bridges ...

Thanks to Richard for this great post! He writes...a number of these locomotives were captured and operated by MRS units during the war and afterward. My last photo (Photo #6) shows one of these MRS operated locomotives.

The attached article describes the German wartime built Type 52 'Kondenslokomotive' 2-10-0 steam locomotives that were equipped with the special condenser tender. These locomotives were a sub-group of the standard German Type 52 Kreigslok (also known as the Kreigslokomotive) wartime built 2-10-0 steam locomotives and were specially made to operate for long distances on the Eastern front railways without having to stop for the resupply of water. 

The condenser tender enabled the locomotive to condense its exhaust steam back into water and then continue to use this water in the boiler to produce further steam. In a normal steam locomotive the exhaust steam is discharged to the atmosphere and lost. 

The German operated railways on the Eastern front had difficulty supplying sufficient clean and treated boiler water to its steam locomotives. The Kondenslokomotives locomotives were designed to reduce this problem and to enable the locomotives to operate over longer distances. In addition, the water tanks were subject attacks by the Soviet partisans and air force and were easily damaged and put out of use. 

This article is an in depth technical description of the locomotive and its special condenser tender. It was written for USA railway mechanical engineers, but it does contain some information related to the German methods used for Eastern Front wartime locomotive operation. The stated operating range of 1000 Km (660 miles) was reported by other railway sources to be lower and in the range of 640 Km (400 miles). For comparison, the typical operating range of a standard mid-size steam locomotive during wartime operation would be approximately 80 Km (50 miles) before it need to obtain water. 

 These condenser locomotives, and the standard German Type 52 Kreigslok 2-10-0 steam locomotives, were operated by both the Wehrmacht’s own railway operating units and the Deutsche Reichsbahn (the German State Railway) staff. All Type 52 locomotives were built using a much simplified method of construction to reduce construction time and materials and were designed to have a light axle load in order to operate on many of the lightly built Soviet railway lines. 

Approximately 180 of the Type 52 condenser locomotives were built by Henschel at their Kassel Works during the war and a number of additional ones built afterward. For comparison, several thousand of the standard Type 52 Kreigslok 2-10-0 steam locomotives were built by both Henschel and by other locomotive builders, including companies in the occupied countries. 

 A number of the Type 52 Kreigslok condenser locomotives operated on the Western Front railways, including in Belgium and Italy and some remained in operation after the war. Several were captured and used by the US Army Railway Operating Battalions in Germany during and after the war. In addition, one of the captured locomotives was sent to the USA after the war for examination. 

The standard Type 52 Kreigslok 2–10-0 steam locomotives remained in operation in Germany and on the state railways of many countries throughout Europe into the 1970s. Some continued in service in several Eastern European countries into the 1990s and a number remain in existence today. 

 The original article was printed in the December 29, 1945 edition of the USA magazine 'Railway Age’ which was the main USA railroad industry publication.

The attached photos #1, #2 & #6 were copied from the Italian model railway website Märklinfan Club Italia’. The remaining photos were copied from the internet.