A wide-firebox suburban tank engine of considerable power. Although wide, the firebox wasn't a Wootten type and burned bituminous coal. The JAs (1414-1422) had a 56.62 sq ft (5.26 sq m) grate area, but suffered only a 1.8 sq ft decrease in firebox heating surface. The type had piston valves instead of the usual slide valves. Fuel and water capacities increased to 5 tons (5.5 metric tons) and 3,700 US gallons (14,005 litres), respectively, in later years..
Drury (1993) says that they ran on the Hudson and Harlem subdivisions until the railroad electrified the approaches to Grand Central Station.
Then Boston & Albany ran them in Boston-area commuter service until converting them to 2-6-0 Moguls (Class E-11) in 1904; see Locobase 16283.
Data for the first ten were essentially the same as the specs shown here, which apply to the last eight L-1a that were produced in late 1907. Firebox heating surface area in the L-1s amounted to 148 sq ft (12.75 sq m), weight on the drivers was 136,000 lb (61,689 kg), and engine weight came to 225,000 lb (102,058 kg).
The firebox was just over 7 feet wide (actually 85 1/4"/2.165 m), almost as beamy as that of a Wootten furnace and meant for the same purpose of burning pea sized coal to reduce smoke. Relatively capacious 10" (254 mm) piston valves had a maximum travel of 5 1/2" (140 mm). At the time, said RLE, these were believed "to be the heaviest and most powerful locomotive specially designed for regular suburban service."
Rebuilt with a superheater; see Locobase 3844.
Locobase 16245 shows the original L-1 class that began service in 1906. Beginning in 1916, the B&A superheated the class.
Lima rebuilt and enlarged the class from January 1929 to November 1931 (batched as order 18555-1 through -18) as shown in the specs, at which time superheater area was increased from 305 sq ft to 354 sq ft. The 8 D2Bs had 178 sq ft of direct (firebox) heating surface. Piston valve diameter increased from 10" to 12" (305 mm). The B&A redesignated the class L-3 and the New York Central reclassed it as D-2a or D-2b in 1940.
Unlike the parent New York Central's suburban tanks which lost their jobs when the route into Grand Central Station was electrified, this class served the Boston area until diesels took over. Except for 305, which was redesignated X305 in June 1950 for duty as a shop engine at Selkirk, the entire class was scrapped in June (6), July (10), and September (1) 1950. X305 was sold for scrap to Luria Brothers in October 1952.
This was one of the earlier suburban-service locomotive, a design credited to the road's Superintendent of Motive Power William Buchanan.
The Journal said that at the time of writing a train left Grand Central Station (the earlier one, not the one well-known to 20th- and 21st-Century travelers) every five minutes (on average) between 3 and 7 PM.
Like the later Js, these were not a success and were converted to 2-6-0s by 1899; see Locobase 4105..
|Principal Dimensions by Steve Llanso of Sweat House Media|
|Class||J, Ja||L-1, L-1a||L-2/L-3/D-2a, D-2b||M|
|Railroad||New York Central & Hudson River (NYC)||Boston & Albany (NYC)||Boston & Albany (NYC)||New York Central (NYC)|
|Number in Class||16||18||18||3|
|Road Numbers||1407-1422||1250-1267||300-317||829, 830, 832/1050-1052|
|Locomotive Length and Weight|
|Driver Wheelbase (ft / m)||15 / 4.57||15 / 4.57||15 / 4.57||12.75 / 3.89|
|Engine Wheelbase (ft / m)||23 / 7.01||35.83 / 10.92||36.33 / 11.07||35.58 / 10.84|
|Ratio of driving wheelbase to overall engine wheebase||0.65||0.42||0.41||0.36|
|Overall Wheelbase (engine & tender) (ft / m)||35.83 / 10.92||35.83 / 10.92||36.33 / 11.07||35.58 / 10.84|
|Axle Loading (Maximum Weight per Axle) (lbs / kg)|
|Weight on Drivers (lbs / kg)||128,000 / 58,060||137,500 / 62,369||145,200 / 65,862||95,000 / 43,091|
|Engine Weight (lbs / kg)||216,000 / 97,976||229,000 / 103,873||258,000 / 117,027||171,000 / 77,564|
|Tender Loaded Weight (lbs / kg)|
|Total Engine and Tender Weight (lbs / kg)||216,000||229,000||258,000||171,000|
|Tender Water Capacity (gals / ML)||3500 / 14.02||3850 / 14.58||4000 / 15.15||2300 / 8.71|
|Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)||4 / 4.50||4 / 3.60||5 / 4.50||2.70 / 2.50|
|Minimum weight of rail (calculated) (lb/yd / kg/m)||71 / 35.50||76 / 38||81 / 40.50||53 / 26.50|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in / mm)||63 / 1600||63 / 1753||63 / 1600||64 / 1626|
|Boiler Pressure (psi / kPa)||200 / 13.80||200 / 13.80||200 / 13.80||180 / 12.40|
|High Pressure Cylinders (dia x stroke) (in / mm)||20" x 24" / 508x610||20" x 24" / 508x610||23" x 24" / 584x610||18" x 22" / 457x559|
|Tractive Effort (lbs / kg)||25,905 / 11750.32||25,905 / 11750.32||34,259 / 15539.64||17,040 / 7729.22|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.94||5.31||4.24||5.58|
|Firebox Area (sq ft / m2)||159.30 / 15.06||159.30 / 14.80||169 / 15.70||144.90 / 13.46|
|Grate Area (sq ft / m2)||63.20 / 5.87||56 / 5.20||56.10 / 5.21||31.90 / 2.96|
|Evaporative Heating Surface (sq ft / m2)||2437 / 226.49||2435 / 226.22||1872 / 173.91||1597 / 148.36|
|Superheating Surface (sq ft / m2)||354 / 32.89|
|Combined Heating Surface (sq ft / m2)||2437 / 226.49||2435 / 226.22||2226 / 206.80||1597 / 148.36|
|Evaporative Heating Surface/Cylinder Volume||279.26||279.03||162.20||246.47|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||12,640||11,200||11,220||5742|
|Same as above plus superheater percentage||12,640||11,200||13,015||5742|
|Same as above but substitute firebox area for grate area||31,860||31,860||39,208||26,082|