Delaware, Lackawanna &Western / Morris & Essex 2-6-0 "Mogul" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 61 (Locobase 3284)

Data from "Grate for Burning Fine Anthracite Coal--Delaware, Lackawanna & Western Railroad", Railway Engineer, Volume 18, No 7 (July 1897), p. 198; and Mogul Locomotive for the Delaware, Lackawanna & Western", Railroad Gazette, Volume XXX [30], No. 48 (3 December 1898), p. 358.. According to a compilation of Cooke locomotives by B.Rumary (25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND) and supplied to Locobase by Allen Stanley in March 2004, works numbers were 2412-2413 (November 1898).

Interesting camelback with a surprisingly light look to it. The anthracite-burner had the large Wooten firebox at the back of which was a full windscreen for the fireman. The center cab has a steam dome squeezed between it and the tall pipe stack and large headlight. Perhaps the relatively small cylinders and raked pilot (cow-catcher) reduce the ungainliness.

RE reported that the Lackawanna's comparison of $2/ton hard coal and $0.70 fine anthracite led David Brown, master mechanic, to design a variant of the Wootten firebox. A very wide grate sloped down toward the tubesheet and was made up of water tubes and grate bars. The 20 2" (50.8 mm) water tubes were spaced 4 1/4" (108 mm) apart except for a centerline spacing of 8 1/2" (216 mm) to accommodate rocking grate bars.

The ex-M&E engines survived into the 1920s, the 67 being scrapped in 1924, the 61 in 1925.


Class E-1 (Locobase 5718)

Data from Angus Sinclair, Twentieth Century Locomotives (New York: Railway and Locomotive Engineering, 1904), pp.536-538. See also DL&W 3 - 1938 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Also see [] (29 October 2003). (Thanks to Chris Hohl for his 21 August 2019 email noting the tender's water capacity.) Works numbers were 27276-27282 in 1903.

This was a series of conventional-cab Moguls built for light freight and passenger work. Slide valve travel was 5 1/2".

Many were superheated (See Locobase 5719).


Class E-10 (Locobase 16447)

Data from Roy V Wright, Locomotive Dictionary-3rd Edition (New York: Simmons-Boardman Publishing Company, 1912), p. 168. (Many thanks to Chris Hohl for his 21 August 2019 email and spreadsheet noting the entry in the Fowler Dictionary that provides the data for this entry.) Works numbers were 46145-46153

Similar in size the Baldwin Moguls of 1904 (Locobase 14459), this nonet of upstate New Yorkers probably about the same tube count (310) as that design. A key difference was the use of outside radial valve gear to actuate the valves.

All were soon superheated along with the rest of the DL&W 63" driver 2-6-0s; see Locobase 5719


Class E-11 (Locobase 14460)

Data from DL&W73 - 1938 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also "Pacific Type Locomotives, Delaware, Lackawanna & Western RR" Railway and Engineering Review, Volume 53, No. 1 (5 July 1913), pp. 641-642. Works numbers were 50008-50014 in 1911.

This was the last batch of conventional-cab Moguls to go into service on the Lackawanna. They broke from the pattern established by earlier classes in being delivered with outside radial valve gear.


Class E-2, E-6, E-6a (Locobase 5721)

Data from set of DL&W locomotive diagrams at [] (29 October 2003); and DL&W 7 - 1927 Locomotive Diagrams supplied in August 2013 by Allen Stanley from his extensive Rail Data Exchange collection . Works numbers were 27283-27300 in 1903 and 39842-39843 in 1906. (Thanks to Chris Hohl for his 21 August 2019 email and spreadsheet linking the E-6s to this entry and noting the valve gear on the E-6 locomotives.)

The only camelback Moguls to enter service with the Lackawanna. Eighteen came from Schenectady in 1903, two more from Rogers in 1906. The 1927 diagram shows the 588 with Stephenson (Williams-Howe) link motion, the 589 E-6a fitted with Walschaert outside radial valve gear. By 1927, tube counts came in at several levels ranging from 296 to 314 tubes.

The class retired beginning in 1926 with the last leaving the line in 1934. None of these was superheated.


Class E-3 (Locobase 14459)

Data from DeGolyer, Volume 26, p. 298. (Thanks to Chris Hohl for his 21 August 2019 email correcting the class ID from E-8 to E-3.) Works numbers were 24131-24145 in April 1904 and 24184, 24204, and 24231 in May.

Sprinkled among the Wootten-boiler Consolidations then in production by Baldwin were the half-dozen conventional-cab Moguls built for light freight and passenger work. They essentially repeated the 1903 Schenectady engines of 1903 shown in Locobase 5718. Slide valve travel was 5 7/8" (149 mm).

This class was not superheated. Instead it was scrapped in 1926-1928.


Class E-4, E-7, E-9 (Locobase 5717)

Data from set of DL&W locomotive diagrams at [] (29 October 2003). See also DL&W 7 - 1927 Locomotive Diagrams supplied in August 2013 by Allen Stanley from his extensive Rail Data Exchange collection. (Chris Hohl's 21 August 2019 email question about the class ID led to Locobase's discovery of the 1909 locomotive.) Rogers' works numbers were 39850-39855 in 1906, Schenectady's numbers were 45533-45534 in 1908 and 46164-46165 in 1909.

Drury (1993) explains that the line's Consolidations were slow drag-freight type and the Moguls satisfied the need for something faster. Rogers delivered six in 1906 and Schenectady added a pair in 1908 and two more in 1909.

NB: Given the tube heating surface area shown in the diagram, Locobase estimates the original tube count. Never retrofitted with superheaters, the class deployed a melange of tube counts (and thus heating surface areas) ranging from 300 to 335 tubes by the time they were scrapped in the mid-1930s.


Class E-5 (Locobase 15098)

Data from DL&W 7 - 1933 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 35856-35857 in 1906.

Part of a continuing series of powerful Moguls with long wheelbases, this set of seven came from Paterson, NJ. They essentially repeated the 1903 Schenectady engines of 1903 shown in Locobase 5718. Slide valve travel was 5 7/8".

Like the Schenectady Moguls shown in Locobase 5718, many were superheated to a common design (See Locobase 5719)

NB: Tube count is an estimate based on the amount of tube heating surface area remaining once the given firebox area was subtracted from the given total evaporative heating surface area.


Class E-5a, E-8a, E-10a, E-11a (Locobase 5719)

Data from set of DL&W locomotive diagrams at [] (29 October 2003) . (A 21 August 2019 email from Chris Hohl noted the slightly shorter tender of the E-5a.)

The Lackawanna superheated all of its 63"-drivered Moguls (Locobase 5718) to a common standard. The firebox was unchanged and so were the weights. The slide valve casting received an "economy chest" that contained an 8" (203 mm) diameter piston-valve core.

The two E-5a trailed a slightly smaller tender that held 6,000 US gallons (22,710 litres) of water; it weighed 120,000 lb () loaded. E-5a engine and tender wheelbase measured 2" (50.8 mm) less at 52 ft 5 1/2 in (16.00 m).

Principal Dimensions by Steve Llanso of Sweat House Media
Class61E-1E-10E-11E-2, E-6, E-6a
Locobase ID3284 5718 16447 14460 5721
RailroadMorris & Essex (DL&W)Delaware, Lackawanna &WesternDelaware, Lackawanna &WesternDelaware, Lackawanna &WesternDelaware, Lackawanna &Western
CountryUSAUSAUSAUSAUSA
Whyte2-6-02-6-02-6-02-6-02-6-0
Number in Class2239720
Road Numbers61, 67550-556541-549534-540570-587, 588, 589
GaugeStdStdStdStdStd
Number Built2239720
BuilderCookeAlco-SchenectadyAlco-SchenectadyAlco-SchenectadyAlco - multiple works
Year18981903190919111903
Valve GearStephensonStephensonWalschaertWalschaertStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.75 / 4.5015 / 4.5715 / 4.5715 / 4.5715 / 4.57
Engine Wheelbase (ft / m)22.59 / 6.8923.83 / 7.2623.83 / 7.2623.83 / 7.2623.83 / 7.26
Ratio of driving wheelbase to overall engine wheebase 0.65 0.63 0.63 0.63 0.63
Overall Wheelbase (engine & tender) (ft / m)49.27 / 15.0252.62 / 16.0452.62 / 16.0452.62 / 16.0451.94 / 15.83
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)122,000 / 55,338140,000 / 63,503150,500 / 68,266152,500 / 69,173144,000 / 65,317
Engine Weight (lbs / kg)138,500 / 62,823161,000 / 73,028171,500 / 77,791173,500 / 78,698165,000 / 74,843
Tender Loaded Weight (lbs / kg)80,000 / 36,287119,400 / 54,159119,400 / 54,159130,000 / 58,967120,000 / 54,431
Total Engine and Tender Weight (lbs / kg)218,500 / 99,110280,400 / 127,187290,900 / 131,950303,500 / 137,665285,000 / 129,274
Tender Water Capacity (gals / ML)3700 / 14.026000 / 22.736500 / 24.626500 / 24.626000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)8 / 710 / 910 / 910 / 910 / 9
Minimum weight of rail (calculated) (lb/yd / kg/m)68 / 3478 / 3984 / 4285 / 42.5080 / 40
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)57.75 / 146763 / 160063 / 160063 / 160063 / 1600
Boiler Pressure (psi / kPa)180 / 12.40200 / 13.80200 / 13.80200 / 13.80200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x66020.5" x 26" / 521x66020.5" x 26" / 521x66020.5" x 26" / 521x66020.5" x 26" / 521x660
Tractive Effort (lbs / kg)24,867 / 11279.4929,484 / 13373.7329,484 / 13373.7329,484 / 13373.7329,484 / 13373.73
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.91 4.75 5.10 5.17 4.88
Heating Ability
Tubes (number - dia) (in / mm)239 - 2" / 51310 - 2" / 51310 - 2" / 51288 - 2" / 51314 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.95 / 3.9513.50 / 4.1113.50 / 4.1113.50 / 4.1112.50 / 3.81
Firebox Area (sq ft / m2)152 / 14.12166.20 / 15.44161 / 14.96157 / 14.59187 / 17.37
Grate Area (sq ft / m2)80 / 7.4353.40 / 4.9653.40 / 4.9653 / 4.9287.60 / 8.14
Evaporative Heating Surface (sq ft / m2)1763 / 163.792342 / 217.582337 / 217.112183 / 203.732242 / 208.29
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1763 / 163.792342 / 217.582337 / 217.112183 / 203.732242 / 208.29
Evaporative Heating Surface/Cylinder Volume206.68235.85235.35219.84225.78
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation14,40010,68010,68010,60017,520
Same as above plus superheater percentage14,40010,68010,68010,60017,520
Same as above but substitute firebox area for grate area27,36033,24032,20031,40037,400
Power L151246710664562776719
Power MT277.78316.99292.02272.23308.60

Principal Dimensions by Steve Llanso of Sweat House Media
ClassE-3E-4, E-7, E-9E-5E-5a, E-8a, E-10a, E-11a
Locobase ID14459 5717 15098 5719
RailroadDelaware, Lackawanna &WesternDelaware, Lackawanna &WesternDelaware, Lackawanna &WesternDelaware, Lackawanna &Western
CountryUSAUSAUSAUSA
Whyte2-6-02-6-02-6-02-6-0
Number in Class610222
Road Numbers557-562501-510563-564563-569, 534-549
GaugeStdStdStdStd
Number Built6102
BuilderBurnham, Williams & CoAlco - multiple worksAlco-Rogersshops
Year190419061906
Valve GearStephensonStephensonStephensonWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)15 / 4.5715 / 4.5715 / 4.5715 / 4.57
Engine Wheelbase (ft / m)23.83 / 7.2623.83 / 7.2623.83 / 7.2623.83 / 7.26
Ratio of driving wheelbase to overall engine wheebase 0.63 0.63 0.63 0.63
Overall Wheelbase (engine & tender) (ft / m)52.62 / 16.0452.62 / 16.0452.45 / 15.99
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)140,000 / 63,503153,000 / 69,400140,000 / 63,503140,000 / 63,503
Engine Weight (lbs / kg)161,000 / 73,028176,000 / 79,832161,000 / 73,028161,000 / 73,028
Tender Loaded Weight (lbs / kg)119,400 / 54,159120,000 / 54,431119,400 / 54,159126,000 / 57,153
Total Engine and Tender Weight (lbs / kg)280,400 / 127,187296,000 / 134,263280,400 / 127,187287,000 / 130,181
Tender Water Capacity (gals / ML)6500 / 24.626000 / 22.736500 / 24.626500 / 24.62
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)10 / 910 / 910 / 910 / 9
Minimum weight of rail (calculated) (lb/yd / kg/m)78 / 3985 / 42.5078 / 3978 / 39
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 160057 / 144863 / 160063 / 1600
Boiler Pressure (psi / kPa)200 / 13.80200 / 13.80200 / 13.80200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)20.5" x 26" / 521x66021" x 26" / 533x66020.5" x 26" / 521x66020.5" x 26" / 521x660
Tractive Effort (lbs / kg)29,484 / 13373.7334,197 / 15511.5229,484 / 13373.7329,484 / 13373.73
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.75 4.47 4.75 4.75
Heating Ability
Tubes (number - dia) (in / mm)310 - 2" / 51342 - 2" / 51304 - 2" / 51159 - 2" / 51
Flues (number - dia) (in / mm)24 - 5.375" / 137
Flue/Tube length (ft / m)13.50 / 4.1113.50 / 4.1113.50 / 4.1113.50 / 4.11
Firebox Area (sq ft / m2)166 / 15.42167 / 15.51157 / 14.59157 / 14.59
Grate Area (sq ft / m2)53 / 4.9253.40 / 4.9653.40 / 4.9653.40 / 4.96
Evaporative Heating Surface (sq ft / m2)2336 / 217.022578 / 239.502305 / 214.141678 / 155.89
Superheating Surface (sq ft / m2)341 / 31.68
Combined Heating Surface (sq ft / m2)2336 / 217.022578 / 239.502305 / 214.142019 / 187.57
Evaporative Heating Surface/Cylinder Volume235.25247.41232.12168.98
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10,60010,68010,68010,680
Same as above plus superheater percentage10,60010,68010,68012,496
Same as above but substitute firebox area for grate area33,20033,40031,40036,738
Power L166956223653511,699
Power MT316.28269.01308.73552.68

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