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Class D (D S B)
The prototype: During the first years of the 20th century the Danish State Railways were in great need of new and more powerful goods engines as the weight and speed of the trains showed a steady increase. The then chief mechanical engineer Otto Busse therefore had a new engine class of the mogul (2-6-0) type designed. The first batch with numbers 801-804 were delivered by the Henschel and the Hartmann factories in Germany and by Nydquist & Holm in Sweden during the years 1902-08. The next batch (internally designated D II and carrying the numbers 842-51 and 865-900), differed from the first mainly by beeing fitted with superheaters. These engines were delivered during the years 1909-22 from a number of makers: Schwartzkopff in Germany, Tubize in Belgium, Baldwin in the USA and Frichs in Germany. A third batch without superheaters, but with larger boilers, were ordered from Schwartzkopff at the same time. This batch hade the numbers 852-864 och class designation D III. All variants included the Class D were thus built in 100 examples from 1902 til 1922. When the first locomotives had been in use for about 25 years the time was ripe for a major reconstruction and improvement, which was carried out in the period 1925-41 on all the D I and some of the D II engines. The result was designated class D IV. These engines had a frame lengthened backwards, bigger cylinders and boilers and larger drivers cabins. Som examples, which did not receive new cylinders and boilers, were designated "D II rebuilt" from then on. During later years a number of additional, less important, changes were also made on the engines. Class D is one of the most popular and well-known of the danish steam locomotive classes. The 100 examples have been scattered all over the country and have handled practically all types of trains during the years. Five Class D locomotives have been preserved. No. 802 and 871 belong to Danmarks Jernbanemuseum (The Danish Railway Museum), numbers 825 and 826 have found a home at Dansk Jernbaneklubb (The Danish Railway Club) and no. 857 at Kolding Lokomotivklubb (The Kolding Locomotive Club).
Some technical data:
The model: Class D is a very versatile engine for the typical model railway. It is relatively small but powerful and has a speed register suitable for the comparatively short distances on a model railway. It is suitable for epoch II as well as epoch III. Our model is hand-built in brass and represents a typical example of the modernized D IV sub-class. The flywheel equipped Swiss precision motor is placed in the tender. A drive system with ball bearings transmits the power to the third coupled axle and from there through the prototypically linked coupling rods to the other axles. The gear ratio chosen gives the locomotive extraordinary smooth running characteristics at speeds up to a scale 70 kph (44 mph). The model is characterized by
Five year technical warranty.
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