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"XA" - Automobile. Similar in design to general service box car, but with exceptionally large side or side and end doors (1/17-7/32). "XA" - Automobile. Similar in design to general service box car, having 10 ft. or greater clear height inside but with side doors at least 10 ft. wide, with or without end doors (4/38-7/43). "XAB" - Automobile. Similar in design to general service box car, less than 10 ft. clear height inside, but with side doors at least 10 ft. wide, with or without end doors (4/38-7/43). "XAF" - Automobile-Furniture. Similar in design to automobile car, but usually of larger cubic capacity and greater inside clear height (7/32-10/66). "XAP" - Automobile Parts. Similar in design to "XM", "XA" or "XAB" car, but equipped with special permanent racks or devices for stowing automobile parts (4/38-1/49). "XAP" - Automobile parts. A house car similar in design to "XM" but specially equipped with permanent interior fixtures for stowing automobile parts, not suitable for general service loading of other miscellaneous commodities (1/53-10/66). "XAR" - Automobile. Similar in design to general service box car, but with side doors at least 10 ft. wide, with or without end doors, and equipped with permanent automobile stowing equipment (4/38-1/49). "XAR" - Automobile device. A house car similar in design to "XM" box except unlined with side or side and end doors and equipped with loading racks and/or floor tubes with tie-down chains for loading setup automobiles and trucks, not suitable for general service loading of all miscellaneous commodities (1/53-10/66). It is recommended that in each case where loading racks in "XAR" and "XMR" cars have been made inoperative by securing in roof of cars for the purpose of transferring cars to general service loading, a note to be included in the Official Railway Equipment Register showing series or individual numbers of cars affected. "XC" - A house car having individual compartments with a multiplicity of side doors and suitable for general commodity loading (1/68). "XF" - Furniture. Similar in design to general service box car, but usually with greater cubic capacity (1/17-10/66). "XF" - Non-insulated Box Car similar in design to "XM", designed and specially prepared with a U.S. Food and Drug Administration approved white epoxy or other comparable white coating to seal interior walls, doors, and ends, and provide a smooth durable surface to prevent contamination (1/80-1/95). "XI" - Box Car, insulated. A box car having walls, floor and roof insulated, not equipped with ice bunkers or ice baskets. This car ordinarily used in transporting vegetables, fruits, etc. (1/17-3/29). "XI" - Insulated Box. Similar in design to general service box car, but either wholly or partially insulated. Not equipped either with ventilating devices or for refrigeration (7/32-1/61). "XI" - Insulated box car similar in design to "XM", but either wholly or partially insulated, equipped either with or without ventilating devices, not equipped for refrigeration (10/57-10/66). "XL" - Loader Equipped. A house car similar in design to "XM", either fully or partially lined with steel perforated side walls or equipped with interior side rails or stanchions and crossbar members, for securement of certain types of lading and/or permanently attached movable bulkheads (1/68). Cars equipped with interior side rails only, built new, rebuilt or reclassified on or after January 1, 1966, in order to qualify for the "XL" 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. (1/68). "XL" - Loader Equipped Box Car. Similar in design to "XM", with steel perforated side walls or equipped with interior side rails for securement of certain types of lading and/or permanently attached movable bulkheads (1/73-1/95). Cars equipped with interior side rails only, built new, rebuilt or reclassified on or after January 1, 1966, in order to qualify for the "XL" 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 (1/73-1/95). "XM" - Box Car. General service, suitable for lading which should be kept from the weather. A box car is a closed car having side and end housings and roof, with doors in sides or sides and ends (1/17-3/29). "XM" - Box. A house car for general service and especially for lading requiring protection from the weather and equipped with side or side and end doors (7/32-4/99). "XMC" - A house car having individual compartments with a multiplicity of side doors and suitable for general commodity loading (10/57-10/66). When "XMC" cars are insulated, they shall be designated "XMCI". "XME" - Merchandise loading. A house car similar in design to "XM" with wooden lining and fitted with interior stowing fixtures, but which notwithstanding such stowing fixtures can be used for general service loading (1/53-10/66). When "XME" cars are insulated, they shall be designated class "XMEI". "XML" - Loader Equipped. A house car similar in design to "XM", either fully or partially lined with steel perforated side walls or equipped with interior side rails or stanchions and crossbar members for securement of certain types of lading and/or permanently attached movable bulkheads. (when "XML" cars are insulated, they shall be designated class "XMLI") (1/53-10/66). Cars equipped with interior side rails only, built new, rebuilt or reclassified on and after January 1, 1966, in order to qualify for the "XML" 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 (10/66). "XMP" - A house car similar in design to "XM" but specially equipped for specific commodity loading other than automobiles and parts and not suitable for miscellaneous commodity loading (1/49-10/66). It is recommended that in each case where the designation "XMP" is used, a note be included in the Official Railway Equipment Register to show the particular kind of loading for which cars are equipped. "XMR" - Automobile Device. A house car similar in design to "XM", fully lined with side or side and end doors, equipped with loading racks and/or floor tubes with tie-down chains for loading setup automobiles and trucks and suitable for general service loading of other miscellaneous commodities (1/49-10/66). It is recommended that in each case where loading racks in "XAR" and "XMR" cars have been made inoperative by securing in roof of cars for the purpose of transferring cars to general service loading, a note be included in the Official Railway Equipment Register showing series or individual numbers of cars affected. "XP" - Boxcar similar in design to "XM", but which is specially equipped for a specific commodity loading and not suitable for miscellaneous commodity loading. A brief description and the particular kind of lading for which intended must be included as a note in The Official Railway Equipment Register (1/68-1/73). "XP" - Boxcar similar in design to "XM", but which is specially equipped for a specific commodity loading and not suitable for general commodity loading; except that such box cars dedicated to handling commodities listed in Paragraph A of Rule 97 of the AAR Interchange Rules, must be designated "XP". A brief description and the particular kind of lading for which intended must be included in the description column in the Official Railway Equipment Register (1/80-7/84). "XP" - Boxcar similar in design to "XM", but which is specially equipped, designed, and/or structurally suitable for a specific commodity loading; except boxcars (XF, XM, XMI) dedicated to the transportation of commodities in paragraph A, Rule 97, AAR Interchange Rules, must be designated "XP" (4/90-1/97). "XR" - Auto Device Car. A house car similar in design to "XM" box either lined or unlined, with side or side and end doors and equipped with loading racks and/or floor tubes with tie-down chains for loading setup automobiles and trucks (1/68). It is recommended that when loading racks in "XR" cars have been secured in roof of cars for purpose of transferring cars to general service loading, a note be included in the Official Railway Equipment Register showing series or individual numbers of cars affected and whether such cars are lined or unlined (1/68). "XT" - Tank Box. A house car with or without doors, either metal lined or enclosing one or more tanks, to hold water or other liquids (1/17-1/39). "XT" - A house car with or without doors, with or without insulation, either metal lined or enclosing one or more tanks (1/41-4/99). "XU" - A house car with removable superstructure to be used for Special Loading (1/56-10/66). "XV" - Box Car, Ventilated. Similar to ordinary box, only having ventilation, and suitable for the transportation of produce or other foodstuffs not needing refrigeration (1/17-3/29). Notes: 1 - When any of the foregoing Class "X" cars are insulated, the letter "I" should be added to the designation (1/68-4/99). 2 - Cars having special heating equipment for the protection of commodities against freezing to be covered by affixing the letter "H" to the designating symbol (3/28-1/80). 3 - Boxcars dedicated to the transportation of commodities in Paragraph A, Rule 97, AAR Interchange Rules, must be designated "XP". General Notes: Any class of equipment having special heating appliances for the protection of commodities against freezing, to be covered by affixing the letter "H" to the designating symbol (3/28, 1/41, 7/43, 1/49, 10/57, 1/68 & 1/73). The capacity of car can be shown by affixing two figures after designating letter: for instance, "80" would mean 80,000 pounds capacity; "10" would mean 100,000 pounds capacity, "60" would mean 60,000 pounds capacity. Where tanks are in question the capacity numbers should indicate capacity in gallons instead of pounds (4/24-7/32 & 10/57). |