This appears to be a supplement to a three-engine order delivered in 1889 (works 477-479). The first two stayed with the T&DR until they were scrapped in 1955. 3 went to the Cavan & Leitrim in 1941.
The 1898 variant was sold to the West Clare in 1953 from the Great Northern's Inchicore Works. Not long after its arrival on the WCR, however, it was returned to Inchicore, then turned over the C&L in 1957. It was scrapped 2 years later
Data from []. . (July 2002). (Data from Flanagan, The Cavan & Leitrim Railway (1968), p 113, shows the design after its 1902 reboilering.)
Data from Flanagan, The Cavan & Leitrim Railway (1968), p 114 and "Tank Locomotive for Tralee & Dingle Light Ry, Ireland", The Locomotive Magazine,Vol VIII, 13 June 1903), pp.49 & 411. See also the Wikipedia entry Works numbers were 800 (7T) and 836 (8 / 4T)
According to Flanagan, this was a standard Mogul tank design sold by K S to many railways.
7T was scrapped in 1928, but 4T served the TDR until 1941, when it was moved to the C & L. In addition to having a bad brake design, which made it "much feared by the Dingle drivers," Flanagan says, "the combination of outside cylinders and inside Stephenson link motion made inspection and repairs impossible except over a pit." Yet it was "much admired" on the C & L even if the indifferent quality of the local Arigna coal made it difficult "to keep a fire ...alight in the small firebox."
4T lasted to the end of the C & L and was even used in lifting the right of way after the line's closure in 1959.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 3T | 7 |
Locobase ID | 2771 | 6403 |
Railroad | Tralee & Dingle Light Railway | Tralee & Dingle Light Railway |
Country | Ireland | Ireland |
Whyte | 2-6-0T | 2-6-0T |
Number in Class | 2 | 1 |
Road Numbers | 6T, 8T | 7-8 / 4T, 7T |
Gauge | 3' | 3' |
Number Built | 2 | 1 |
Builder | Hunslet Engine Co | Kerr, Stuart & Co |
Year | 1898 | 1903 |
Valve Gear | Walschaert | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 8.75 / 2.68 | 10.54 / 3.21 |
Engine Wheelbase (ft / m) | 15.80 / 4.82 | 15.08 / 4.60 |
Ratio of driving wheelbase to overall engine wheelbase | 0.55 | 0.70 |
Overall Wheelbase (engine & tender) (ft / m) | 15.80 / 4.82 | 15.08 / 4.60 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | ||
Engine Weight (lbs / kg) | 85,120 / 38,610 | 69,400 / 31,479 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | 85,120 / 38,610 | 69,400 / 31,479 |
Tender Water Capacity (gals / ML) | 900 / 3.41 | 816 / 3.09 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.80 / 1 | 1.10 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | ||
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 36 / 914 | 36 / 914 |
Boiler Pressure (psi / kPa) | 150 / 1030 | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 | 12.5" x 20" / 318x508 |
Tractive Effort (lbs / kg) | 10,774 / 4887.01 | 11,806 / 5355.12 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | ||
Heating Ability | ||
Tubes (number - dia) (in / mm) | 124 - 1.75" / 44 | 107 - 1.75" / 44 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | ||
Firebox Area (sq ft / m2) | 66 / 6.13 | 47 / 4.37 |
Grate Area (sq ft / m2) | 9.75 / 0.91 | 7.50 / 0.70 |
Evaporative Heating Surface (sq ft / m2) | 536 / 49.81 | 478 / 44.41 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 536 / 49.81 | 478 / 44.41 |
Evaporative Heating Surface/Cylinder Volume | 193.83 | 168.27 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 1463 | 1200 |
Same as above plus superheater percentage | 1463 | 1200 |
Same as above but substitute firebox area for grate area | 9900 | 7520 |
Power L1 | 2819 | 2410 |
Power MT |