Version 8 Car

Introduced in 1999 by National Steel Car, this car is seen in large numbers across Canada and the United States. It was developed specifically to address the need for additional rail transport capacity caused be the growing Potash market.

Previously, the majority of Canadian Potash rail transport was accomplished with the larger Hawker Siddeley 4550 cu ft Cylindrical Hoppers and similar cars from National Steel Car and Marine Industries.

Though the car is a newer design, it has less capacity than the Hawker Siddeley style cars. However it makes up for this in a shorter car length of only 47 feet versus the Hawker Siddeley style cars at 59 feet. This allows a train of these cars to carry more Potash then a train of comparable length made up of the Hawker Siddeley style hoppers.

These car operates at a gross rail load of 286,000 pounds, the current maximum limit. However, they are actually designed for a gross rail load of 315,000 pounds. They are currently produced with 100 ton nominal capacity trucks to suit present 286,000 lb. gross rail loading. If the maximum weight limit is increased, these cars can be upgraded with 125 ton trucks allowing for maximum cargo capacity going forward. 

These cars are currently operated in large numbers by both Canpotex and the Potash Corporation of Saskatchewan, and in smaller numbers by other operators. To date, over 7,000 have been produced in six versions. These cars are seen on a daily basis traveling across the Canadian Pacific, Canadian National, BNSF, CSX, NS and Union Pacific rail networks.

The second production run for PotashCorp, the sixth overall, was also 1000 cars, built between September 2012 and December 2012. They are also owned by General American Marks and include road numbers POTX 2000 to POTX 2999.  

The 2000 Series cars are the fifth version of the car type to be produced by National Steel Car. Design revisions include redesigned A & B car ends, modified ladder rungs, shortened length side sills and 2 diagonal rounded rectangle shaped openings in floor plate over end wheels of trucks

Modeling use for prototype accuracy:

• The 2000 Series PotashCorp POTX (Version 5, road numbers 2000-2999) can be modeled from late 2012. They generally only run in unit train operations mixed with 1000 Series PotashCorp POTX (Version 4, road numbers 1000-1999).
  
• They can also be seen in small cuts or single cars going to various industires on mixed freights or local transfers.
  
• They do on occassion also run in Canpotex unit trains, so they can be mixed with all paint schemes with the exclusion of the early Canpotex PTEX scheme which had be phased out by the introduction of these cars.

Version 5 Car Prototype Features:

• Car length of 47 feet
• Car capacity of 4300 cu. ft.
• Circular roofwalk tread pattern
• Long cross roofwalk panels running the full width of the car between short side roofwalk panels
  
• Raised roof hatches
• 12 running board supports
• 8 side panel sheets
• Shortend length side sills
• A car end configuration 3
  
• B car end configuration 2
  
• Modified ladder rungs
• 2 diagonal rounded rectangle shaped openings in floor plate over end wheels of trucks
• Angular shape gaps between hopper bays
• Barber S2 DH trucks

Design changes in Version 6 cars:

• Shortend length side sills compared to all previous versions of the car
  
• A car end configuration 3 in place of A car end configuration 2 found on Version 4
  
• B car end configuration 2 in place of B car end configuration 1 found on all previous versions of the car
  
• Modified ladder rungs replace the non-wraparound ladder rungs found on Version 4 of the car
  
• 2 diagonal rounded rectangle shaped openings in floor plate over end wheels of trucks added, not present on Versions 2, 3 & 4 of the car, smaller and different shape to those generally in the same location on Version 1 of the car

Set A

• KSPX 5170
• KSPX 5198
• KSPX 5191
• KSPX 5190
• KSPX 5128
• KSPX 5130

Set B

• KSPX 5154
• KSPX 5150
• KSPX 5152
• KSPX 5123
• KSPX 5149
• KSPX 5148

Set C

• KSPX 5147
• KSPX 5145
• KSPX 5163
• KSPX 5162
• KSPX 5161
• KSPX 5103

Set D

• KSPX 5007
• KSPX 5012
• KSPX 5008
• KSPX 5006
• KSPX 5091
• KSPX 5014

Set E

• KSPX 5018
• KSPX 5013
• KSPX 5053
• KSPX 5051
• KSPX 5049
• KSPX 5089

Set F

• KSPX 5075
• KSPX 5088
• KSPX 5160
• KSPX 5159
• KSPX 5155
• KSPX 5158

Set G

• KSPX 5156
• KSPX 5151
• KSPX 5153
• KSPX 5197
• KSPX 5003
• KSPX 5100

Set H

• KSPX 5040
• KSPX 5164
• KSPX 5044
• KSPX 5048
• KSPX 5143
• KSPX 5140