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"RA" - Meat and Produce Refrigerator. A car with body, doors and hatch plugs, equipped with insulation and brine ice tanks, and without ventilating devices (4/24). "RA" - Meat and Provision Refrigerator. A car with body, doors and hatch plugs, equipped with insulation and brine ice tanks and without ventilating devices (1/17 & 9/25-3/29). "RA" - Brine-Tank Refrigerator. A house car equipped with insulation and brine-tanks. Designed primarily for the combined use of crushed ice and salt and usually without ventilating devices. Used chiefly for meats and packing-house products (7/32-1/80). "RAM" - Brine-Tank Refrigerator, similar to "RA" but equipped with beef rails (7/43-1/80). "RB" - Beer and Ice Refrigerator. A car with body and doors equipped with insulation, having no ice tanks or ventilating devices (1/17-2/26). "RB" - Beer, Ice, Water, Vinegar or Produce Refrigerator. A car with body and doors equipped with insulation and of the same general construction as the standard refrigerator car with the exception that the car is not equipped with ice tanks or ventilating devices (3/27-3/29). "RB" - Beverage, Ice, Water or Vinegar Refrigerator, similar in design to a bunker refrigerator, except that it is not equipped with ice bunkers and with or without ventilating devices (7/32-4/58). "RB" - A bunkerless refrigerator car similar in design to an "RS" car with or without ventilating devices and with or without devices for attaching portable heaters. Constructed with a minimum of 3 in. of insulation in sides and ends and 3-1/2 in. in floor and roof based on the insulation requirements given in A.A.R. Supplement to Manual Plate C-2 or a thickness reduced in proportion to the thermal conductivity of the insulation (10/66-1/80). "RB" - A bunkerless refrigerator car similar in design to an "RS" car with or without ventilating devices and with or without devices for attaching portable heaters. Constructed with insulation in side ends, floor and roof to meet maximum UA factor requirement of 250 BTU/F/Hour for 50 foot cars and 300 BTU/F/Hour for 60 foot cars. Effective for cars ordered new after March 1, 1984. (7/84-4/99) Cars built or rebuilt prior to March 1, 1984, must have been constructed with a minimum of 3 in. of insulation in the sides and ends and 3-1/2 in. in floor and roof based on the insulation requirements given in AAR Standard S-2010 or a thickness reduced in proportion to the thermal conductivity of the material. (7/84-4/99) "RBL" - A car similar in construction to an "RB" type car, but equipped in addition with adjustable loading or stowing devices. (10/57-4/99). Cars equipped with interior side rails only, built new, rebuilt or reclassified on and after January 1, 1966, in order to qualify for the "RBL" designation, shall have a minimum of four (4) usable side rails on each wall of car, each extending from doorway to approximately four (4) feet from end of car, plus facilities in doorway to accommodate doorway members. The facilities in the doorway are not required in cars equipped with plug type doors. (1/62-4/99). "RBT" - Beverage Container Refrigerator. Similar in design to "RS" type, but with no ice bunkers. Provided with two or more fixed tanks for transporting beverages or other liquids in bulk. With or without means of ventilation (4/38-1/39). "RC" - A car equipped with one or more demountable insulated containers. The containers may be equipped with facilities for refrigeration (7/43). "RC" - Refrigerator Car similar to an "RB" car using a cryogen to produce temperatures to transport frozen commodities. (4/90-4/99) "RCD" - Solid Carbon Dioxide Refrigerator. A house car equipped with insulation, with or without means of ventilation and provided with a system of refrigeration in which Solid Carbon Dioxide is employed as the primary refrigerant (4/38-1/68). "RLO" - A permanently enclosed car other than a box car regardless of interior or exterior shape for handling bulk commodities with openings for loading through top with weather-tight covers or doors and equipped with mechanical refrigeration unit capable of furnishing protection against heat and/or cold. Unit operated by power other than from the car axle. Car provided with facilities for discharge of lading through bottom openings (1/80). "RM" - Refrigerator or Produce Car. A car suitable for carrying commodities that need icing in transit. This car is equipped with two or more ice bunkers, or baskets, and suitable means for draining off melted ice or briny water. This car has body, door and hatch plugs equipped with insulation, with trap door in the roof for admission of ice and salt; also water seals inside of car (1/17-3/29). "RM" - Beef Rail Refrigerator. A fully insulated house car equipped with either brine tanks or ice bunkers. Designed primarily for the use of combined crushed ice and salt and with or without means of ventilation. Equipped with beef rails and used chiefly for fresh meat and packing house products (4/38-1/39). "RP" - Iceless Refrigerator. A house car equipped with insulation, with or without means of ventilation and provided with apparatus or other device for furnishing protection against heat and/or cold (7/32). "RP" - Mechanical Refrigerator car equipped with insulation, with or without means of ventilation and provided with apparatus or other device for furnishing protection against heat and/or cold. Apparatus operated by power other than through the car axle (4/38-4/99). "RPA" - Mechanical Refrigerator. A house car equipped with insulation, with or without means of ventilation and provided with apparatus or other device for furnishing protection against heat and/or cold. Apparatus operated by direct mechanical drive from car axle (4/38-10/57). "RPB" - Mechanical Refrigerator. A house car equipped with insulation, with or without means of ventilation and provided with apparatus or other device for furnishing protection against heat and/or cold. Apparatus operated by electro-mechanical drive from car axle (4/38-10/57). "RPB" - Mechanical Refrigerator. Similar to "RP" type car but designed primarily for use in bulk potato or similar type loading as cars are equipped with interior slope sheets and conveyors and/or equipment for mechanical loading and unloading (1/80-4/99). "RPC" - Mechanical Refrigerator car similar in design to an "RP" but equipped with permanently affixed containers (4/90-4/99). "RPL" - Mechanical Refrigerator. Similar to "RP" but equipped in addition with adjustable loading or stowing device (1/62-4/99). "RPM" - Mechanical Refrigerator. Similar to "RP" but equipped with beef rails. (1/56-1/80) "RS" - Standard Refrigerator. A car with body, doors and hatch plugs, equipped with insulation, with ice tanks and either with or without ventilating devices (1/17-3/29). "RS" - Bunker Refrigerator. A house car equipped with insulation and ice bunkers. Designed primarily for use of chunk ice and with means for ventilation (7/32). "RS" - Bunker Refrigerator car equipped with ice bunkers. Designed primarily for use of chunk ice and with or without means of ventilation (4/38-1/95). "RSB" - Bunker Refrigerator. A fully insulated house car equipped with ice bunkers and air circulating fans. Designed primarily for use in bulk potato or similar type loading as cars are equipped with interior slope sheets and conveyors and/or equipment for mechanical loading and unloading (10/66-1/80). "RSM" - Bunker Refrigerator. Similar to "RS" but equipped with beef rails (7/43-1/80). "RSTC" - Bunker Refrigerator. A fully insulated house car equipped with one or two ice bunkers or brine tanks, with or without means for exterior ventilation, equipped with thermostatically controlled electric fan forced air circulating system, powered by equipment located on car (1/62-1/80). "RSTM" - Bunker Refrigerator. Similar to "RSTC", but equipped with beef rails (10/66). "RT" - Milk Refrigerator. A car designed for transporting milk in bulk under refrigeration (3/28-7/43). Notes: 1 - Cars having special heating equipment for the protection of commodities against freezing to be covered by affixing the letter "H" to the designating symbol (4/38-10/66). |