loco-info.com - Italian State Railway class 835

Dimensions and Weights
Length	30 ft 0 5/8 in
Wheelbase	11 ft 9 3/4 in
Rigid wheelbase	11 ft 9 3/4 in
Empty weight	88,185 lbs
Service weight	99,869 lbs
Adhesive weight	99,869 lbs
Axle load	33,290 lbs
Water capacity	1,321 us gal
Fuel capacity	3,307 lbs (coal)

Boiler
Grate area	15.9 sq ft
Firebox area	74.9 sq ft
Tube heating area	767.4 sq ft
Evaporative heating area	842.3 sq ft
Total heating area	842.3 sq ft

Power Plant
Driver diameter	51.6 in
Boiler pressure	174 psi
Expansion type	simple
Cylinders	two, 16 9/16 x 22 13/16 in

Power
Power source	steam
Indicated power	365 hp (272 kW)
Optimal speed	13 mph
Top speed	34 mph
Starting effort	17,904 lbf

Calculated Values
Factor of adhesion	1 : 5.58
Power-to-weight ratio	0.0037 hp/lb
Heating Area Equivalent	1,216.9 sq ft
Cylinder volume/HAE	1 : 1421.59
Adhesive weight/Total	1 : 1.00
Tractive force/Heating area	1 : 4778.70
Grate area/Heating area	1 : 48.17
Firebox/Tube area	1 : 10.24

steam locomotive

freight

tank locomotive

last changed: 08 2023

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