loco-info.com - Hungarian State Railways series MIa

Dimensions and Weights
Length	17 ft 9 9/16 in
Wheelbase	10 ft 2 1/16 in
Rigid wheelbase	10 ft 2 1/16 in
Service weight	42,174 lbs
Adhesive weight	21,208 lbs
Axle load	21,208 lbs
Water capacity	528 us gal
Fuel capacity	coal

Boiler
Grate area	8.4 sq ft
Evaporative heating area	333.7 sq ft
Total heating area	333.7 sq ft

Power Plant
Driver diameter	40.9 in
Boiler pressure	232 psi
Expansion type	compound
Cylinders	two, HP: 8 11/16 x 15 3/4 in and LP: 13 x 15 3/4 in

Power
Power source	steam
Indicated power	185 hp (138 kW)
Optimal speed	30 mph
Top speed	37 mph
Starting effort	3,941 lbf
with start valve	4,729 lbf

Calculated Values
Factor of adhesion	1 : 4.49
Power-to-weight ratio	0.0044 hp/lb
Adhesive weight/Total	1 : 1.99
Tractive force/Heating area	1 : 3186.17
HP/LP cylinders	1 : 2.25

steam locomotive

passenger

tank locomotive

secondary line

Brotan boiler

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