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Page views since 2023-01-26: 437867
Midland Great Western class A
Great Southern class D5
Ireland | 1902 | 6 produced
Locomotive Magazine, September 1902
sectional drawing
sectional drawing
Locomotive Magazine, September 1901

The class A were the heaviest locomotives in Ireland at the time they entered service. Their job was to haul heavy express trains between the east and west coasts. Due to their high axle load, they could not be used everywhere. The first locomotive was rebuilt as early as 1916, with a superheater and larger cylinders. Due to differences, the rebuilt locomotives were designated as Class A1 or As. With the exception of one locomotive, all the others were only retired between 1954 and 1959.

Variantas builtsuperheated
General
Built1902-19051916-1926
ManufacturerBroadstone
Axle config4-4-0 (American) 
Gauge5 ft 3 in (Irish broad gauge)
Dimensions and Weights
Length54 ft 6 1/2 in
Length loco31 ft 3 1/2 in
Wheelbase22 ft 6 in
Rigid wheelbase9 ft 3 in
Service weight114,016 lbs
Adhesive weight76,496 lbs
Total weight194,208 lbs
Axle load40,096 lbs
Water capacity3,603 us gal
Fuel capacity11,200 lbs (coal)
Boiler
Grate area20 sq ft
Firebox area150 sq ft
Tube heating area1,213 sq ft832.5 sq ft
Evaporative heating area1,363 sq ft982.5 sq ft
Superheater area211 sq ft
Total heating area1,363 sq ft1,193.5 sq ft
Variantas builtsuperheated
Power Plant
Driver diameter75 in
Boiler pressure180 psi175 psi
Expansion typesimple
Cylinderstwo, 18 x 26 intwo, 19 x 26 in
Power
Power sourcesteam
Estimated power750 hp (559 kW)950 hp (708 kW)
Optimal speed28 mph33 mph
Starting effort17,185 lbf18,616 lbf
Calculated Values
steam locomotive
express
Henry Edward Cusack
last changed: 03/2023
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