loco-info.com - Imperial-Royal Field Railways No. 6

Dimensions and Weights
Length	16 ft 10 3/16 in
Wheelbase	8 ft 0 1/4 in
Rigid wheelbase	8 ft 0 1/4 in
Empty weight	24,030 lbs
Service weight	28,219 lbs
Adhesive weight	28,219 lbs
Axle load	7,055 lbs
Water capacity	528 us gal
Fuel capacity	1,323 lbs (coal)

Boiler
Grate area	5.6 sq ft
Firebox area	26.9 sq ft
Tube heating area	211.3 sq ft
Evaporative heating area	238.2 sq ft
Total heating area	238.2 sq ft

Power Plant
Driver diameter	25.6 in
Boiler pressure	203 psi
Expansion type	simple
Cylinders	two, 10 3/16 x 11 13/16 in

Power
Power source	steam
Estimated power	101 hp (75 kW)
Optimal speed	8 mph
Top speed	15 mph
Starting effort	8,285 lbf

Calculated Values
Factor of adhesion	1 : 3.41
Power-to-weight ratio	0.0036 hp/lb
Heating Area Equivalent	372.8 sq ft
Cylinder volume/HAE	1 : 912.83
Adhesive weight/Total	1 : 1.00
Tractive force/Heating area	1 : 7819.06
Grate area/Heating area	1 : 37.75
Firebox/Tube area	1 : 7.85

steam locomotive

narrow gauge

military railway

field railway

last changed: 08 2023

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