In 1926 Alco Richmond built two identical mikados for the Longview, Portland & Northern (c/n 66919-66920, road numbers 1400-1401). LP&N used these primarily to haul log trains on its Ryderwood to Longview (Washington) mainline up until the time a couple Alco switchers replaced them in 1949.
On 2/23/1945 the LP&N sold the #1400 for $29,205 to the Oregon & Northwestern Railroad (O&NW) where it worked until scrapped in 1957. The O&NW made good use of the #1400. In fact it replaced the #27.
LP&N parent Long Bell transferred the #1401 to its logging railroad out of Tennant, California (former Weed Lumber Company) but the #1401 proved way too heavy for the Weed operation and languished in storage until the end of that operation.
These mikados were designed for a maximum grade of .5% and maximum curves of 10 degrees. Boiler diameter was 80" I.D. and 86" O.D. The firebox was 114.125" by 84.25". The tube length was 19' - 3". The number of tubes was 219 at 2" dia.; Superheater was 38 at 5.375" dia.
|Locomotive Length and Weight|
|Engine Wheelbase||33' - 7"|
|Ratio of driving wheelbase to overall engine wheelbase||0.44|
|Overall Wheelbase (engine & tender)||71' - -3/4"|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||224000 lbs|
|Engine Weight||274000 lbs|
|Tender Light Weight||190000 lbs|
|Total Engine and Tender Weight||464000 lbs|
|Tender Water Capacity||10000 gals|
|Tender Fuel Capacity (oil/coal)||4000 gals|
|Minimum weight of rail (calculated)||85lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||200 psi|
|Cylinders (dia x stroke)||25" x 30"|
|Tractive Effort||55900 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.0|
|Firebox Area||216 sq. ft|
|Grate Area||66.8 sq. ft|
|Evaporative Heating Surface||2197sq. ft|
|Superheating Surface||1024sq. ft|
|Combined Heating Surface||2717 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||212.75|