Data from "Locomotive for Local Traffic on the Flint & Pere Marquette Railroad," The American Engineer & Railroad Journal, Vol LXVIII [68], No 6 (June 1894) , pp. 205-206. See also John H White, Jr, "American Single Locomotives and the 'Pioneer'", Smithsonian Studies in History and Technology #25 (Washington, DC: Smithsonian Institution Press, 1973), pp. 15-16. (Thanks to Chris Hohl for his email supplying the correct tender capacities and to Greg Mills for his 8 May 2020 email correcting TJ Hartsell's name.)
Of the 14,500+ entries in Locobase at time of the latest update of this entry, only three entries used this wheel arrangement. (The other two were Southern Pacific's C P Huntington--Locobase 4133--and some inspection locomotives on the New York Central described in Locobase 15622.)
John White reports that Mister T J Hartsell, Master Mechanic of the F&PM, built this pair of single-wheelers from older 4-4-0s for local passenger traffic on a branch line between Bay City and Saginaw. (The second engine was named G C Kimball.). It's not clear from any of the sources just when these two were rebuilt, but the 1894 report suggested it had happened not long before.
White reproduced the AERJ figure on page 16 that reveals Hartsell's integration of a Belpaire-boilered American on a long frame that supported a Belpaire firebox, a large cab and bunker. Each end had a full-sized pilot, but only the smokebox end had a headlight.
The AERJ's profile reported that"... the engines are doing remarkably good work ...hauling trains ranging from two to six cars on a fast schedule time ...giving perfect satisfaction." (Very few locomotives described in the AERJ ever gave less than perfect satisfaction ...)
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | J J McCormick |
| Locobase ID | 5710 |
| Railroad | Flint & Pere Marquette |
| Country | USA |
| Whyte | 4-2-4T |
| Number in Class | 2 |
| Road Numbers | 9, 11 |
| Gauge | Std |
| Number Built | 2 |
| Builder | F&PM |
| Year | 1893 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 29 / 8.84 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 29 / 8.84 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 40,000 / 18,144 |
| Weight on Drivers (lbs / kg) | 40,000 / 18,144 |
| Engine Weight (lbs / kg) | 80,000 / 36,287 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 80,000 |
| Tender Water Capacity (gals / ML) | 1200 / 1.14 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 67 / 33.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 67.50 / 1715 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22" / 381x559 |
| Tractive Effort (lbs / kg) | 8103 / 3675.46 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.94 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 133 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.08 / 3.39 |
| Firebox Area (sq ft / m2) | 84.49 / 7.85 |
| Grate Area (sq ft / m2) | 12.51 / 1.16 |
| Evaporative Heating Surface (sq ft / m2) | 787 / 73.14 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 787 / 73.14 |
| Evaporative Heating Surface/Cylinder Volume | 174.89 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1626 |
| Same as above plus superheater percentage | 1626 |
| Same as above but substitute firebox area for grate area | 10,984 |
| Power L1 | 3931 |
| Power MT | 216.66 |
