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  2. Pennsylvania Railroad class A3 - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad_class_A3

    The Pennsylvania Railroad (PRR) A3 was a class of 0-4-0 steam locomotives built at Altoona Works between 1895 until 1905. The A3s were used as switchers for railroad cars at various PRR yards. Later, some A3s were converted to A3a, which had saddle tanks instead of tenders. [ 1 ]

  3. Baldwin DR-12-8-1500/2 - Wikipedia

    en.wikipedia.org/wiki/Baldwin_DR-12-8-1500/2

    The Baldwin DR-12-8-1500/2 (known informally as the Centipede) was the Baldwin Locomotive Works' first serious attempt at a production road diesel locomotive.The Baldwin type designation was ' DR-12-8-1500/2, ' meaning Diesel Road locomotive, with 12 axles (8 of which were driven), and two engines of 1,500 horsepower (1,100 kW) each.

  4. MTH Electric Trains - Wikipedia

    en.wikipedia.org/wiki/MTH_Electric_Trains

    MTH had a troubled relationship with Lionel that ended in April 1993 when MTH decided to re-enter the market with an O scale model of the General Electric Dash 8 diesel locomotive, which Wolf had first offered to produce for Lionel. Turned down, Wolf decided to market the locomotive himself, citing reduced orders from Lionel for MTH's replicas ...

  5. Pennsylvania Railroad class P5 - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad_class_P5

    [2] [3] [4] The PRR did not have any 4-6-4 steam locomotives, so the P5s were the only 4-6-4 type locomotives owned by the PRR. The first P5s were built with box cabs. A grade crossing accident in which the crew were killed led to the substitution of a central cab to give better crash protection, a streamlined steeple type, in later production ...

  6. Third rail (model rail) - Wikipedia

    en.wikipedia.org/wiki/Third_rail_(model_rail)

    3 rail system. A key advantage for three-rail track is balloon loops, where a train enters a loop through a turnout and then exits through the same turnout in order to change the train's direction. With two-rail track, when the track reverses on itself, this causes a short circuit. With three-rail track, because the center rail remains constant ...

  7. Pennsylvania Railroad class M1 - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad_class_M1

    The M1 was a class of steam locomotive of the Pennsylvania Railroad (PRR). It was a class of heavy mixed-traffic locomotives of the 4-8-2 "Mountain" arrangement, which uses four pairs of driving wheels with a four-wheel guiding truck in front for stability at speed and a two-wheel trailing truck to support the large firebox needed for sustained power.

  8. Digital model railway control systems - Wikipedia

    en.wikipedia.org/wiki/Digital_model_railway...

    Factory installed decoders have been offered in H0 scale, two-rail 0 scale, 3-rail 0 gauge, Gauge 1, and three-rail Standard Gauge models. MTH has announced their intention to install DCS compatible decoders in S scale trains beginning in 2013. [1] Separate sale decoder kits have been offered for installation in all of the above noted scales ...

  9. Pennsylvania Railroad class J1 - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad_class_J1

    The PRR J1 was a class of 2-10-4 "Texas" type steam locomotives built between 1942 and 1944. The J1 had over 95,000 pounds-force (422.6 kN) of tractive effort , plus an additional 15,000 lbf (66.7 kN) if the booster engine was used.