loco-info.com - Jura-Bern-Luzern G 3/3

Dimensions and Weights
Length	22 ft 10 3/16 in	23 ft 0 3/8 in
Wheelbase	8 ft 2 7/16 in
Rigid wheelbase	8 ft 2 7/16 in
Service weight	41,006 lbs	44,533 lbs
Adhesive weight	41,006 lbs	44,533 lbs
Water capacity	687 us gal
Fuel capacity	1,102 lbs (coal)

Boiler
Grate area	8.6 sq ft
Evaporative heating area	607.1 sq ft	540.3 sq ft	607.1 sq ft
Superheater area		109.8 sq ft
Total heating area	607.1 sq ft	650.1 sq ft	607.1 sq ft

Variant	standard variant	superheated	MOB variant

Power Plant
Driver diameter	41.3 in		37.4 in
Boiler pressure	160 psi	174 psi
Expansion type	simple
Cylinders	two, 12 3/16 x 18 7/8 in

Power
Power source	steam
Estimated power	148 hp (110 kW)	174 hp (130 kW)	148 hp (110 kW)
Optimal speed	10 mph	11 mph	8 mph
Top speed	28 mph		22 mph
Starting effort	9,232 lbf	10,072 lbf	11,132 lbf

Calculated Values
Factor of adhesion	1 : 4.44	1 : 4.07	1 : 4.00
Power-to-weight ratio	0.0036 hp/lb	0.0043 hp/lb	0.0033 hp/lb
Adhesive weight/Total	1 : 1.00
Tractive force/Heating area	1 : 3418.69	1 : 3482.75	1 : 4122.28
Total/Superheater		1 : 4.92

steam locomotive

freight

passenger

tank locomotive

narrow gauge

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