Data from the Powerhouse museum website [], which shows what is claimed to be tram 1A. See also Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University Volume 10, p. 95, et. al.
Works numbers were
1879
April 4615-4617
1882
February 6064, 6067; March 6074, 6079, 6116-6117; April 6129; August 6331, 6333
1883
October 6980-6983; December 7079-7081, 7083
1884
January 7118-7119, 7122, 7135; December 7529-7535
1885
January 7536-7546, 7549-7550
1891
February 11659-11662; March 11665-11666, 11675-11680, 11683-11684, 11687
Other websites include that of the Valley Heights Steam Tramway -- [] -- which has restored Tram 103a and the Bendigo tramway site
Baldwin was the only manufacturer able to deliver 4 steam tram motors in time for the Sydney International Exhibition being held in Sydney's Botanical Gardens. The exhibition opened on 15 Sept 1879 - without the motors. It was a technicality as the first run with a steam tram came 8 days later. The service was an immediate success and over 440,000 passengers had been transported by the end of 1879.
Although originally planned just for the 2.4-km line in the Gardens and to operate for only the 6-month term of the exhibition, the service was extended both in time and distance. Over the next 15 years, 100 steam tram motors pulling two tram coaches entered service -- all from Baldwin. Under the casing of wood and 5 windows a side, the engine was an orthodox saddle tanker with D slide valves and the American bar frame. Most of the motors had the 11" cylinders; some were smaller.
Steam trams spread throughout New South Wales. Sydney electrified its tramways beginning in 1905, although the last steam tram didn't leave service until 1937.
Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University Volume 12, p. 1 and "Steam Car for Sydney Tramways," Scientific American: Supplement, Volume 17, No 122 (2 February 1884), p. 6729. Works numbers were 7051, 7058 in November 1883 and 7064-7065, 7070 in D
Locobase 7395 shows the long series of steam dummies delivered to the City of Sidney Tramways. Mingled in with the orthodox steamers was this quintet of Vauclain compounds; the operator could open all four cylinders to live steam with a single lever. Specifications called for these motors to move 80 passengers at 10 mph up a 0.53% grade.
Compared to later compounds, this assembly's LP cylinders were much too small to use all of the steam exhausted by the HP cylinders. The coke-fired "power egg" had a pair of HP and LP cylinders fed by a single piston valve mounted vertically on either side of the smoke box. A circular firebox exhausted into a short barrel while the steam collected at the top of the upright vessel.
The Scientific American's Supplement illustration shows the imposing bulk of a double-deck tram. The lower deck was enclosed and held the steam engine over the front bogie (which was shrouded). The upper deck had a roof over an open-air arrangement of longitudinal benches; smokers were only allowed on this deck. Given its location in the car and likely over-heating of nearby passengers, the stack was surrounding by an iron casing that carried the exhaust out above the second deck.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | Standard Motor | Vauclain tram |
Locobase ID | 7395 | 15977 |
Railroad | Sydney Tramway | Sydney Tramway |
Country | Australia | Australia |
Whyte | 0-4-0ST | 0-4-0T+4 |
Number in Class | 100 | 5 |
Road Numbers | 1-100 | 58A-62A/59-63 |
Gauge | Std | Std |
Number Built | 100 | 5 |
Builder | Burnham, Parry, Williams & Co | Burnham, Parry, Williams & Co |
Year | 1879 | 1883 |
Valve Gear | Stephenson | Joy |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 6 / 1.83 | 5.50 / 1.68 |
Engine Wheelbase (ft / m) | 6 / 1.83 | 5.50 / 1.68 |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 6 / 1.83 | 39 / 11.89 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 32,480 / 14,733 | |
Engine Weight (lbs / kg) | 32,480 / 14,733 | |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 295 / 1.12 | 200 / 0.76 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 27 / 13.50 | |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 36 / 914 | 30 / 762 |
Boiler Pressure (psi / kPa) | 140 / 970 | 130 / 900 |
High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 | 9" x 12" / 229x305 |
Low Pressure Cylinders (dia x stroke) (in / mm) | 12" x 12" / 305x305 | |
Tractive Effort (lbs / kg) | 6400 / 2902.99 | 4583 / 2078.82 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.08 | |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 102 - 1.75" / 44 | 112 - 1.5" / 38 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 5.33 / 1.62 | 5.35 / 1.63 |
Firebox Area (sq ft / m2) | ||
Grate Area (sq ft / m2) | 10.10 / 0.94 | 5.90 / 0.55 |
Evaporative Heating Surface (sq ft / m2) | ||
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | ||
Evaporative Heating Surface/Cylinder Volume | ||
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 1414 | 767 |
Same as above plus superheater percentage | 1414 | 767 |
Same as above but substitute firebox area for grate area | ||
Power L1 | ||
Power MT |