| Class SM-4 (SMJ-4, SMLJ-4, SMJ-18, SMLJ-18) wagons entered service in 1987 and are flat wagons with solid decks and retractable twistlocks designed to transport 8 x 5ft, 4 x 10ft, 2 x 20ft or 1 x 40ft containers. Most have buffers to prevent container doors from being opened.Number range 23 853 018 to 23 856 998, Length between couplers 14.308m, Length over headstocks 12.190m, Length between bogie pivot centres 9.290m, Deck height 1.090m, Width 2.426m, Tare (average) 18,900kg, Load 48,000kg, Deck area 27.5m3. |