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Maintenance of Way Car type.

"MS" - Scale Car. Cars used to test railroad scales (4/99).   "MT" - Training Unit equipped with training aids or modified to demonstrate components of the unit (1/95-4/99).   "MWB" - Ballast Cars. All descriptions of cars used for the purpose of carrying ballast for the laying of new right of way and repairs. The car used generally for this type of work is of the gondola type, with side or centre dump (1/53-4/99).   "MWC" - Caboose and Tool Car. Similar to Tool Car, but having one end fitted up as a caboose, with bunks, stove and water storage, with or without lookout, and is used in either work or wrecking trains (1/53-7/84).   "MWD" - Dump Cars. On the type of contractors' car used for building up fills; the body of the car dumps being raised by means of counterweight, air or hand power (1/53-4/99).   "MWE" - Ballast Spreader and Trimmer. A car with blades or wings for spreading or trimming ballast (1/53-4/99).   "MWF" - Flat Car. Used for transporting rails, ties or ballast and for storage of wrecking trucks, or gathering scraps along right of way. These cars are at times equipped with low sides, about 10 or 12 inches high (1/53-4/99).   "MWG" - Section Gang or Track Inspection Car. Flat car, with or without seats or tool boxes, and equipped with single or double cylinder gasoline engine serving as motive power (1/53-4/99).   "MWH" - Hand Car. This car is flat and mounted on four wheels and propelled by means of pushing, known as "Push Car" (1/53-4/99).   "MWJ" - Ballast Unloader. A car equipped with machinery for pulling a plow through cars loaded with ballast (1/53-4/99).   "MWK" - Snow-Removing Car. A car equipped with any special device for removing snow from between or alongside of rails (1/53-4/99).   "MWL" - Hand Car. This is a small flat car, with or without seats, mounted on four wheels and propelled by means of cranks or hand levers (1/53-4/99).   "MWM" - Store-Supply Car. A car equipped for handling material to be distributed for railway use (1/53-4/99).   "MWP" - Pile Driver. A car equipped with machinery for pile driving (1/53-4/99).   "MWS" - Steam Shovel. Car equipped with donkey engine housed in. Having a boom of wood or steel and the end of which is a shovel or scoop. It may be propelled by its own power or by means of a locomotive and run as a car in freight trains, being equipped with safety appliances. The cubic capacity of shovels, in yards, can be indicated by figures after the classification letters (1/53-4/99).   "MWSP" - Shoving platform consists of a car equipped with hand safety rails and a shelter where a trainman can guide a train in a reverse move or shoving operation (4/99).   "MWT" - Tool and Block Car. A car used for the carrying all descriptions of tool equipment and blocking. This car has side and end housings and roof, also end platforms. There are doors in sides and ends and usually windows. It is fitted inside with proper racks and boxes for storage of tools (1/53-4/99).   "MWTK" - Similar in design to "T", but used specifically in Maintenance-of-Way service (4/99).   "MWU" - Wrecking Derrick. This derrick has boom and hoist fitted to frame of flat car and lifting done by means of hand power; propelled by locomotives (1/53-4/99).   "MWV" - Wrecking Derrick. This derrick has boom and hoist fitted to flat car and having drum at one end to furnish means of hoisting; steam furnished to donkey engine, running drum, by means of flexible steam line from attached locomotive; propelled by locomotive (1/53-4/99).   "MWW" - Wrecking Derrick. A derrick used for wrecking purposes having donkey engine to raise and lower booms and hoists; engine housed in and on separate platform with boom, is pivoted in centre of car frame in order that it can be worked on either side or ends; usually fitted with anchor beams to be used for heavy lifting. Fitted with safety appliances and propelled by means of locomotive. Lifting capacity in tons shown by means of figures (1/53-4/99).   "MWX" - Boarding Outfit Car. This includes cars used for boarding, sleeping or cooking purposes in construction and similar work (1/53-4/99).   Weed Exterminator. A car equipped with machinery for propelling itself, or otherwise, and burning or spraying weeds along the track as it proceeds (1/53-4/99).   Ditching Car. A car equipped with machinery for propelling itself, or otherwise, and excavating ditches along the sides of the track as it proceeds (1/53-4/99).   Rail Saw. A car equipped with machinery for sawing track rails and similar material (1/53-4/99).   Rail Bender. A car equipped with machinery for bending track rails and similar material (1/53-4/99). (P>Grass Cutter. A car equipped with machinery for propelling itself, or otherwise, and cutting grass along the track as it proceeds (1/53-4/99).   Track Layer. A car equipped with machinery for propelling itself, or otherwise, and laying the track ahead of it as it proceeds (1/53-4/99).