As competition grew in the Keeweenaw Peninsula (and stole much of the original traffic) the MRR threw out branches in several directions ,e eventually connecting Houghton with Lake Linden and Calumet.
By the time of the purchase of the Consolidations in this entry, the MRR had converted to the standard gauge and was operated in conjunction with the Duluth, South Shore & Atlantic. In 1901, one State of Michigan rport claimed, "The passenger train service furnished by this company, in connection with the Duluth, South Shore & Atlantic trains, from Keweenaw Bay to Ontonagon is all that could be desired. No fencing on this line and apparently no necessity for any. Switches blocked as required by law: crossing signs and plank in good order."
NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface
Pelahatchie, Miss had a long history even before Lockwood Lumber set up a sawmill in 1907, but lumber operations spurred rapid growth. To support Lockwood's operations, the company built the MRwy between Pelahatchie and River Hill some 25 miles (40.25 km) away.
A note in the Baldwin specs noted that the 16" (406 mm) stack as delivered was too large for this small Consolidation: "Hereafter furnish a straight stack 16" diameter or a taper stack of smaller diameter." The locomotive's springs were inevitably to be "...amply strong to stand rough track."
The 2 didn't remain with the MRwy for long. It was sold to locomotive rebuilder/reseller Southern Iron & Equipment in 1918. SI & E found a buyer in Mississippi Soft Pine of Canton, which later sold the engine to Lutcher Moore Cypress of St James Parish.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Mineral Range||Mississippi Railway|
|Number in Class||10||1|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.65|
|Overall Wheelbase (engine & tender)||45.37'|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||75000 lbs|
|Engine Weight||200000 lbs||85000 lbs|
|Tender Light Weight||70000 lbs|
|Total Engine and Tender Weight||155000 lbs|
|Tender Water Capacity||6000 gals||3500 gals|
|Tender Fuel Capacity (oil/coal)||10 tons||6 tons|
|Minimum weight of rail (calculated)||0||31 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||200 psi||175 psi|
|Cylinders (dia x stroke)||22" x 30"||16" x 22"|
|Tractive Effort||44880 lbs||19040 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.94|
|Firebox Area||223 sq. ft||92 sq. ft|
|Grate Area||36 sq. ft||16.60 sq. ft|
|Evaporative Heating Surface||3123 sq. ft||972 sq. ft|
|Combined Heating Surface||3123 sq. ft||972 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||236.61||189.86|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||7200||2905|
|Same as above plus superheater percentage||7200||2905|
|Same as above but substitute firebox area for grate area||44600||16100|