PLM 241 B 1

Specifications
Configuration:;
• Whyte	4-8-2
• UIC	2′D1′
Gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge
Driver dia.	1,800 mm (70.9 in)
Length	16,125 mm (52 ft 11 in)
Width	115.44 t (113.62 long tons; 127.25 short tons)
Firebox:; • Firegrate area	3.9 m2 (42 sq ft)
Boiler	3-stage
Boiler pressure	HP: 110 bar (11.0 MPa; 1,600 psi),; MP: 58 bar (5.80 MPa; 841 psi),; LP: 13 bar (1.30 MPa; 189 psi)
Heating surface	187 m2 (2,010 sq ft)
Superheater:;
• Heating area	95 m2 (1,020 sq ft)
High-pressure cylinder	240 mm × 650 mm (9.45 in × 25.59 in)
Low-pressure cylinder	500 mm × 700 mm (19.7 in × 27.6 in)

Type and origin
Power type	Steam
Builder	Henschel & Sohn
Build date	1929
Total produced	1

PLM 241 B 1
Type and origin
Power type	Steam
Builder	Henschel & Sohn
Build date	1929
Total produced	1
Specifications
Configuration:;
• Whyte	4-8-2
• UIC	2′D1′
Gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge
Driver dia.	1,800 mm (70.9 in)
Length	16,125 mm (52 ft 11 in)
Width	115.44 t (113.62 long tons; 127.25 short tons)
Firebox:; • Firegrate area	3.9 m2 (42 sq ft)
Boiler	3-stage
Boiler pressure	HP: 110 bar (11.0 MPa; 1,600 psi),; MP: 58 bar (5.80 MPa; 841 psi),; LP: 13 bar (1.30 MPa; 189 psi)
Heating surface	187 m2 (2,010 sq ft)
Superheater:;
• Heating area	95 m2 (1,020 sq ft)
High-pressure cylinder	240 mm × 650 mm (9.45 in × 25.59 in)
Low-pressure cylinder	500 mm × 700 mm (19.7 in × 27.6 in)
Performance figures
Maximum speed	110 km/h (68 mph)
Career
Operators	PLM
Class	241 B
Numbers	241 B 1
Scrapped	1936

The PLM 241 B 1 was a high-pressure steam locomotive built in 1929 for the PLM (Chemins de fer de Paris à Lyon et à la Méditerranée) using the Schmidt high-pressure system. It was a 4-cylinder compound design.

The manufacturer was Henschel & Sohn of Germany; it was most unusual for a French railway to buy German technology, there being somewhat less than total trust of Germany at the time. Schmidt and Henschel seem to have been the only sources of suitable technology.

Only one was built. The locomotive was scrapped in 1936.

Boiler: 3-stage boiler; high pressure circuit: 110 kp/cm² (10.8 MPa, 1,560 psi)' secondary circuit: 58 kp/cm²; low-pressure circuit: 13 kp/cm²
Power: 2530 hpi (1.89 MW)
Speed (attained) 110 km/h (66 mph)

External links

Pictures of the PLM 241 B

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