| Class SM-7 (SMJ-7, SMLJ-7) wagons entered service between 1971 and 1973 and were converted from Class L-1 mechanical refrigerators in 1987. They 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. None of them have container door securing buffers. This one, originally Class L-1 15 601 269, has been modified for some special application by having steel sections welded to its deck.Number range 23 860 006 to 23 863 293 (this one is numbered outside this range), Length between couplers 14.510m, Length over headstocks 12.190m, Length between bogie pivot centres 9.290m, Deck height (before modification) 1.100m, Width 2.438m, Tare (average, before modification) 19,000kg, Load 48,000kg, Deck area 27.5m3. |