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Sizes under 100 lb/yd (49.6 kg/m) rail are usually for lighter duty freight, low use trackage, or light rail. Track using 100 to 120 lb/yd (49.6 to 59.5 kg/m) rail is for lower speed freight branch lines or rapid transit; for example, most of the New York City Subway system track is constructed with 100 lb/yd (49.6 kg/m) rail.
A special crane unloads the rail sections and places them on each side of the temporary track, approximately 3.5 m (12 ft) apart. This operation is usually carried out at night, for thermal reasons. The rail itself is standard UIC section, 60 kg/m (40 lb/ft), with a tensile strength of 800 newtons per square millimetre or megapascals (116,000 psi).
Rail Crane Rail SPA Crane (750 mm) Czech PW maintenance crane Electric crane replacing track on the Toronto streetcar system (1917). A railway crane (North America: railroad crane, crane car or wrecker; UK: breakdown crane) is a type of crane used on a railway for one of three primary purposes: freight handling in goods yards, permanent way (PW) maintenance, and accident recovery work.
EL 1007 was the first diesel rail crane used in New Zealand (originally No. 197 pre-TMS). It was built in 1943 by Ransomes & Rapier, and is currently stored at the Weka Pass Railway . Two 60 tonne Cowan Sheldon diesel rail cranes were built in 1979, after an initial tender in 1976.
In North America and the United Kingdom, rail is graded in pounds per yard (usually shown as pound or lb), so 130-pound rail would weigh 130 lb/yd (64 kg/m). The usual range is 115 to 141 lb/yd (57 to 70 kg/m). In Europe, rail is graded in kilograms per metre and the usual range is 40 to 60 kg/m (81 to 121 lb/yd).
2 crane cars: Never purchased: R101 Reconditioned flat cars F500–F529 LB Foster 1987 In service: R101A Reconditioned flat cars F531–F532 NYCT (in-house) 2001 In service: R102 Crane cars (10 tons) C272–C280 Thrall Car Manufacturing Company: 1989 In service: R103 Track ballast gondola cars D437–D439 LB Foster 1990 In service: R104
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