Goodman Model 136 B 15 Ton Trolley Battery Locomotives - Parts machine. - 3 units available, rebuildable cores - Goodman Model 136 B - Motors 250 Volt DC , 75 HP x 2 motors, total 150 HP per locomotive - Minimum track gauge 36 in, wheels 33 in diameter - Starting draw bar pull 6,600 USA. Top Seller.