Delaware, Lackawanna &Western 4-6-0 "Ten-Wheeler" Type Locomotives

Class 1001 (Locobase 3934)

Data from Railroad Gazette (22 June 1900), which notes that these camelbacks were quite similar in size to some Lake Shore & Michigan Southern 10-wheelers that burned bituminous coal. The Lackawanna engines generated steam in a wide Wootten firebox using fine anthracite.

Drury (1993) notes that these engines also were very similar to some Central of New Jersey locomotives. He adds that they were slow engines. Four were rebuilt with slide valves and all later were superheated and fitted with outside Walschaerts gear (see Locobase 5728).

Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. Works #3463-3469 in March 1900. Except for 1005, scrapped in March 1930, all of the class were scrapped in January 1931.

Class 1008 (Locobase 5360)

Data from a table in June 1906 AERJ. Like their Brooks predecessors, these camelbacks generated steam in a wide Wootten firebox using fine anthracite. They were later superheated -- see Locobase 5729.

The quintet was retired over a long stretch of 11 years -- 1931-1942.

Class H-1a/b/c - superheated (Locobase 5728)

Data from Data from set of DL&W locomotive diagrams at http://www.rr-fallenflags.org/el/loco/dlw-127.html (29 October 2003).

These camelback TenWheelers (in their saturated form, they're profiled in Locobase 3934) preserved the wide firebox, but changed to piston valves and Walschaerts valve motion when they were upgraded. All had been retired by 1931.

Class H-2b/H-6b (Locobase 5729)

Data from set of DL&W locomotive diagrams at http://www.rr-fallenflags.org/el/loco/dlw-127.html (29 October 2003). Originally delivered as saturated-steam engines (see Locobase 5360), these camelback Tenwheelers lost a hefty percentage of tubes to accommodate the superheater flues. In line with the Lackawanna's thinking on superheat, boiler pressure dropped as well. They also added some useful adhesion weight.

H-4a & H-6a upgrades addressed the 26 engines in the Rogers (1013-1023) and Schenectady batches (1024-36) originally delivered in 1906-7 and 1908, 1910. The one difference was the truly huge 103-sq ft grate in the Wootten firebox.

Most of these were later converted to conventional-cab locomotives.

Class H-7a/H-7b (Locobase 11361)

Data from Data from "Equipment and Supplies: Locomotive Building, Railway Age Gazette, Vol 48 (25 February 1910), p. 434. Works numbers were 47948-47952.

These Ten-wheelers owned the largest grate area of any camelback to operate in North America.

Suppliers to the class included:

Axles Driving wheels, Cambria steel, main 9 1/2 x 12. other 9 x 12 ; Tender axle, Cambria steel, 5x9

Bell ringer Gollmar

Boiler lagging Sectional magnesia

Brakes Westinghouse-American

Brake-beams Westinghouse

Brake-shoes Perfecto type on drivers

Couplers Cast steel. Gould Coupler Co.

Draft gear Session friction, type C, on tender, with Acme uncoupling device

Driving boxes ...Cast steel, with Elvintype 4,grease cellars

Headlight Dressel

Injector Hancock composite Inspirator

Journal bearings Magnus .bearings

Journal boxes Symington 5x9 M.C.B.on tender, with torsion lids

Piston and valve rod packings United States

Safety valve Two 3-ln. consolidated, one muffled, one encased

Sanding devices Leach air and hand sander

Sight-feed lubricators Nathan

Springs O. H, steel. D., L. & W. specification

Staying Tate flexible bolts in breaking zone

Steam gages Ashcroft

Tires 31/4 In- thick Midvale flanged; all 5in. wide.

Tubes Spellerlzed steel

Class H-7a/H-7b - superheated (Locobase 11362)

Data from

Not long after this quintet of camelbacks entered service with the largest grate of the type (Locobase 11361), the railroad superheated them. The upgrade included the usual swap of small tubes for large flues (in this case, removal of 185 small tubes for 30 large).

Specifications
Class	1001	1008	H-1a/b/c - superheated	H-2b/H-6b	H-7a/H-7b	H-7a/H-7b - superheated
Locobase ID	3934	5360	5728	5729	11361	11362
Railroad	Delaware, Lackawanna &Western	Delaware, Lackawanna &Western	Delaware, Lackawanna &Western	Delaware, Lackawanna &Western	Delaware, Lackawanna &Western	Delaware, Lackawanna &Western
Whyte	4-6-0	4-6-0	4-6-0	4-6-0	4-6-0	4-6-0
Road Numbers	1001-1007	1008-1012	1001-1007	1008-1013, 1015-16, 1024-	1032-1036	1032-1036
Gauge	Std	Std	Std	Std	Std	Std
Builder	Brooks	Alco-Schenectady	shops	shops	Alco-Schenectady	DL&W
Year	1900	1905	1916	1916	1910	1920
Valve Gear	Stephenson	Stephenson	Walschaert	Walschaert	Baker	Walschaert
	Locomotive Length and Weight
Driver Wheelbase	14'	14.33'	14'	14.33'	14.33'	14.33'
Engine Wheelbase	25.25'	25.50'	25.25'	25.50'	25.50'	25.50'
Ratio of driving wheelbase to overall engine wheebase	0.55	0.56	0.55	0.56	0.56	0.56
Overall Wheelbase (engine & tender)	50.85'	54.02'	50.85'	54.15'	54.02'	55.21'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers	137000 lbs	154000 lbs	137000 lbs	167500 lbs	168000 lbs	175800 lbs
Engine Weight	179000 lbs	201000 lbs	179000 lbs	214800 lbs	214000 lbs	225000 lbs
Tender Light Weight	120000 lbs	120000 lbs	120000 lbs	134700 lbs	135200 lbs	145000 lbs
Total Engine and Tender Weight	299000 lbs	321000 lbs	299000 lbs	349500 lbs	349200 lbs	370000 lbs
Tender Water Capacity	6000 gals	6000 gals	6000 gals	7000 gals	7000 gals	7000 gals
Tender Fuel Capacity (oil/coal)	12 tons	10 tons	12 tons	10 tons	10 tons	10 tons
Minimum weight per yard of rail on which locomotive could run	76.11 lb rail	86 lb rail	76.11 lb rail	93.06 lb rail	93 lb rail	98 lb rail
	Geometry Relating to Tractive Effort
Driver Diameter	69.40"	69"	69"	69"	69"	69"
Boiler Pressure	210 psi	215 psi	200 psi	200 psi	215 psi	200 psi
Cylinders (dia x stroke)	20" x 28"	22.5" x 26"	21" x 28"	23" x 26"	22.5" x 26"	23" x 26"
Tractive Effort	28807 lbs	34862 lbs	30423 lbs	33887 lbs	34862 lbs	33887 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)	4.76	4.42	4.50	4.94	4.82	5.19
	Heating Ability
Firebox Area	180 sq. ft	221.70 sq. ft	168 sq. ft	220 sq. ft	247 sq. ft	230 sq. ft
Grate Area	85.58 sq. ft	94.80 sq. ft	84 sq. ft	94 sq. ft	103.50 sq. ft	103.50 sq. ft
Evaporative Heating Surface	2700	3378	2070	2564	3425	2574
Superheating Surface			382	490		490
Combined Heating Surface	2700	3378	2452	3054	3425	3064
Evaporative Heating Surface/Cylinder Volume	265.20	282.32	184.42	205.08	286.25	205.87
	Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation	17971.80	20382	16800	18800	22253	20700
Same as above plus superheater percentage	17971.80	20382	19417.29	21816.37	22253	24012
Same as above but substitute firebox area for grate area	37800	47666	38834.58	51059.59	53105	53360
Power L1	8588.87	9271	13007.44	14852.91	9630	14963
Power MT	414.64	398.16	627.95	586.48	379.12	562.93