DB Class 10
The two steam locomotives of Class 10 were express locomotives ( new locomotives ) of the German Federal Railroad.
History
The two built by Krupp copies of the series in 1957 delivered to the German Federal Railways and classified there under the operating numbers 10 001 and 10 002. The series should serve as a substitute for the locomotives of the series 01, 03, 18.5 and 39. Due to the high, the use of only a few routes permitting axle load and the rapid structural change in the West German traction it stayed with the two locomotives advance. Both vehicles had a conical smokebox door and a partial lining, which should protect the cylinder groups from excessive cooling and pollution and at the same time reduce the air resistance. The all-welded boiler conceptually similar to the type of boiler used in the Neubekesselung the series 01.10.
The two sample series locomotives initially differed in the type of furnace. The 10 001 was at first coal- fired with a Ölzusatzfeuerung for extension of power peaks. Locomotive 10 002, however, was equal to an oil firing to which the 10 001 was also later converted.
Were driving the locomotives because of their high axle load only certain main routes. They were assigned to 1962 the depot ( Bw ) Bebra, then came to Bw Kassel and in addition to the series 01.10 Bw Kassel were used until 20 March 1967, express and fast trains to and from Giessen. The 10 001 went from 21 March 1967 until the beginning of January 1968 almost continuously before the Eilzugpaar E 387/388 (E 687/688 ) and from Münster, one month after special permission even to the approved only for 20 tonnes axle load route Rheine.
The Series 10 enjoyed especially the staff of the Bw Kassel general popularity. Contrary to the frequently encountered in the literature claiming that it had been damaged vulnerable, long life can be explained by the fact that in contrast to the 01 series spare parts were never available ex-stock.
The retirement of 10 002 was made after breaking a slider bar in January 1967 that of the 10 001 in June 1968.
Design features and performance
Like all new locomotives of the German Federal Railways also received the Series 10 a fully welded sheet metal frame ( plate thickness: 25 mm).
The ( newly constructed ) Tender of type 2'2 'T 40 was designed as a self-supporting welded construction. In the coal-fired design, it was equipped with cover flaps over the coal bucket and a driven by a steam engine device for coal supplies.
The all-welded boiler made of steel grade St 34 (with respect to the firebox and boiler barrel walls made of steel grade HIA ) received a firebox from IZ II steel combustion chamber. A non-absorbent vapor jet pump and a piston feed pump were mounted with mixer preheater design Heinl boiler feed systems.
The locomotives had ever a three-cylinder steam engine with simple steam expansion., The cylinder block was a steel casting and is welded to the frame. We chose a two-axle drive with the second, middle coupled axle through the two outer cylinders and the first Kuppelradsatzes through the middle cylinder on the cranked axle. All axle and rod bearings were fitted with roller bearings. The inner drive rod of the 10 001 received plain bearings. In the 10 002 on the other hand, the inner drive rod was mounted on roller bearings, this, a composite goiter axis was used.
To drive the control of the central cylinder was the third Kuppelradsatz on the left outer side of countercrank. The transfer of the movement of the corresponding swing rod is arranged on the inside between the second and third coupling axis. The slider connecting rods were equipped with Kuhn shear loop; the control block in the cab was typically fixed for the DB - new locomotives not on the boiler, but on the frame. To facilitate the control operation by the engine driver could be seen in front of a pneumatic auxiliary device.
When you drive all three Kuppelradsätze were fixed in the frame, the middle Kuppelradsatz received a flange weakening by 15 mm. The trailing axle was designed as salmon bites.
The performance program of the locomotives provided for the carriage of a D- train with a Wagenzugmasse of 300 t in the plane at 140 km / hr. The indicated power of the locomotive is often with 2,500 PSI indicated (corresponding to 1,839 kW). Also a steam production of 18 t / h as a continuous power and then an indicated power of 3,000 PSI ( approximately 2,210 kW so ) but is occupied for Kohlehauptfeuerung in conjunction with Ölzusatzfeuerung. The Series 10 achieved a very low best value in specific steam consumption of 5.4 kg / hp-hr. This steam consumption value for the induced power the locomotives of the series below the very low value of series 03 of 6.32 kg / hp-hr again significantly and were only slightly higher than the values of the medium-pressure experimental locomotives of Class 04
Whereabouts
The 10 001 can be seen in the German Steam Locomotive Museum in New Market Wirsberg, but is not operational. After the 10 002 a few years as Heizlokomotive Bw Ludwigshafen Hbf was using, she was scrapped in 1972 Aw Offenburg.
Trivia
The Series 10 has made it as a motif on a German stamp, appeared in 1975 as this supplement brand from the series " For the Youth".