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    Kato HobbyTrain Lemke Swiss Electric locomotive Re 6/6 / RE 620 of the SBB  

    Kato HobbyTrain Lemke K10174

    Price: $189.90

    Scale Country Era Railway
    N Switzerland V SBB
    Kato HobbyTrain Lemke K10174 - Swiss Electric locomotive Re 6/6 / RE 620 of the SBB

    Product Features and Details
    N Scale Era V 

    Prototype: The 6-axle locomotives currently re 6/6, were used for years at the SBB in the passenger and freight train service as RE 620. The engines were modified now, what shows among other things on the side door for new air conditioners. The SBB Cargo locomotives carry the typical design of the cargo. The model will be revised accordingly and obtains a digital interface for the first time.

    Model Details:

    • 5 Pole Motor
    • Front Lighting

    Model & Prototype Information

    The Iconic Swiss Re 6/6 electric locomotives were developed to replace the aging Ae 6/6 which operated for the most part in heavy duty traffic on the lines of the Gotthard. As an alternative to the double traction power of two Re 4/4 - these machines also pulled heavy passenger trains over the Gotthard mountains. To reach the necessary tractive effort, a construction comprising six driven axles was necessary. In order to still get good running characteristics in curves, they were built into three two-axle bogies instead of two three-axle bogies as on the Ae 6/6. The middle bogie can move sideways, and the three bogies are connected by elastic cross couplings. Two of the four prototypes were built with a split locomotive body, whereby the joint may only move on an horizontal transverse axis, not on a vertical axis, to accommodate to gradient changes. The other two prototypes got a softer secondary suspension instead of the joint, which proved to be so reliable in everyday use that all series locomotives were built this way. Nevertheless, the two prototypes with a split body are still in regular operation.

    The exterior design is similar to the Re 4/4II, as are the driver's controls and the conventional transformer technology with fixed running notches, which was applied for the last time for this locomotive. In contrast to the Re 4/4II, the Re 6/6 has two
    transformers (one power and one control transformer), which are mounted on the frame between the bogies. Due to the higher roof, the Re 6/6 looks more brawny than the Re 4/4II, especially when seen from the front side.

    The Re 6/6 is equipped with multiple unit train control together with Re 4/4II, Re 4/4III, Re 4/4IV and RBe 540. In passenger traffic they pull heavy passenger trains over the Gotthard route (as an alternative to a double heading of Re 4/4). In freight traffic they are used all over Switzerland for heavy trains, on the Gotthard route very often together with an Re 4/4II or Re 4/4III. Such a couple, often referred to as "Re 10/10" (both locomotives are Re class, so the couple is Re class; 10/10 means that they overall have 10 driven axles out of 10), is capable of pulling the maximum train weight of 1,300 tonnes (1,300 long tons; 1,400 short tons) on 2.6% gradients of the Gotthard line. For heavier trains, up to 1600 tons are operationally feasible; an additional bank engine has to help push the train in order not to overload the couplers.Locomotive 11638 was retired and scrapped in 1990 due to an accident. For the renumbering to the UIC-conforming new numbering scheme in 1992, only the still existing locomotives were considered, thus the 11638 got no new number any more. But the renumbering was never done consistently. During 2005, the UIC numbering scheme was reworked, and 620 001 (instead of 000) was defined to be the smallest number. To make things easy, the scrapped 11638 also got a new number, 620 038. About half a dozen locomotives bore the new numbers at the beginning of 2006.

    After two locomotives were tentatively equipped with radio remote control for pushing trains on the Gotthard line (such that the locomotive pushing at the end of the train may be controlled by the engineer at the front), about 30 locomotives were equipped with it in 2000. To make them administratively distinguishable, they got the new designation Ref 6/6. When SBB was divided into passenger services and freight, the first thirteen locomotives 11601–13 remained in the passenger division. On 1 January 2003 they were exchanged against Re 460. Now all remaining 88 locomotives are assigned to SBB Cargo. Due to the reassignment of the Re 460 to the passenger division, the Re 6/6 again dominate the freight traffic on the Gotthard line. The locomotives are assigned to the workshops Erstfeld, Bellinzona and Lausanne (Lausanne: 2000, today unknown), revisions are done at the main workshop at Bellinzona.

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