BLI 9913 HO Scale UP CSA-2 Early Challenger Union Pacific 3835 Cast Cylinder Paragon4 Hybrid Roadname_New York & Atlantic TDP offers sensor expansion kits

TDP offers sensor expansion kits for the ServoMaster to allow the operation of a grade crossing on up to four bi-directional tracks (Stock # 8001 for optical sensors)

Standard ditch lights

pairing the M1 155mm gun with the proven M4 Sherman chassis

Athearn Genesis G74630 HO Scale EMD MP15AC CSX 1161 with DCC Sound

BLI 9913 HO Scale UP CSA-2 Early Challenger Union Pacific 3835 Cast Cylinder Paragon4 Hybrid Roadname_New York & Atlantic TDP offers sensor expansion kitsBLI 9913 HO Scale UP CSA 2 Early Challenger Union Pacific 3835 Cast Cylinder Paragon4 Hybrid The Union Pacific Challengers were a class of powerful, simple articulated 4 6 6 4 steam locomotives built by the American Locomotive Company (ALCO) exclusively for the Union Pacific Railroad. Between 1936 and 1943, a total of 105 were constructed. Measuring an impressive 122 feet (37 m) in length and weighing 628,000 pounds (284,800 kg), these locomotives