Thuile locomotive

Specifications
Specifications
Configuration:;
• Whyte	4-4-6
• UIC	2'B3'
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1.06 m (3 ft 6 in)
Driver dia.	2.5 m (8 ft 2 in)
Trailing dia.	1.06 m (3 ft 6 in)
Wheelbase	12.25 m (40 ft 2 in)
Length	24.80 m (81 ft 4 in) (locomotive and tender)
Loco weight	80.60 t (79 long tons)
Firebox:
• Grate area	4.68 m2 (50 sq ft)
Boiler pressure	15 kg/cm2 (213 psi)
Heating surface	297.70 m2 (3,204 sq ft)
Cylinders	2
Cylinder size	510 mm × 700 mm (20 in × 28 in)

Type and origin
Type and origin
Power type	Steam
Designer	Thuile
Builder	Schneider
Build date	1899

Thuile
Thuile
	Thuile locomotive at Chartres, 1900
Power type
Type and origin
Power type	Steam
Designer	Thuile
Builder	Schneider
Build date	1899
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-6
• UIC	2'B3'
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1.06 m (3 ft 6 in)
Driver dia.	2.5 m (8 ft 2 in)
Trailing dia.	1.06 m (3 ft 6 in)
Wheelbase	12.25 m (40 ft 2 in)
Length	24.80 m (81 ft 4 in) (locomotive and tender)
Loco weight	80.60 t (79 long tons)
Firebox:
• Grate area	4.68 m2 (50 sq ft)
Boiler pressure	15 kg/cm2 (213 psi)
Heating surface	297.70 m2 (3,204 sq ft)
Cylinders	2
Cylinder size	510 mm × 700 mm (20 in × 28 in)
Maximum speed
Performance figures
Maximum speed	117 km/h (73 mph)
Operators
Career
Operators	Chemin de Fer de l'Etat
Scrapped	1904 (locomotive), post 1946 (tender)

The Thuile locomotive was a steam locomotive designed by M. Henri Thuile, of Alexandria, Egypt, and built in 1899.

History

Thuile proposed a 6-4-8 or 6-4-6 locomotive with 3-metre-diameter (9 ft 10 in) driving wheels, but it was not built.^[1]

The design was taken up by Schneider, of Le Creusot, who built a 4-4-6 with 2.5-metre-diameter (8 ft 2 in) driving wheels, and a forward cab for the driver. The two-cylinder locomotive had Walschaerts valve gear and a double-lobed boiler of nickel-steel. The locomotive was exhibited at the International Exposition in Paris in 1900, and the trials were undertaken on the Chemin de Fer de l'Etat line between Chartres and Thouars. A speed of 117 kilometres per hour (73 mph) was attained hauling a load of 186 tonnes (183 long tons).^[1]

The trials ended when Thuile was killed in June 1900, apparently because he leant too far out of the locomotive and hit a lineside pole^[2] or a piece of scaffolding supporting an overbridge.^[3] The locomotive was returned to Schneider and was scrapped in 1904. The tender survived until at least 1946, when it was noted at Saint Pierre-des-Corps.^[1]

References

^ ^a ^b ^c "BIG WHEELS FOR HIGH SPEEDS". SNCF Society. Retrieved 2008-04-01. ^{[dead link‍]}
^ Douglas Self. "The Thuile Cabforward". Retrieved 2008-04-01.
^ DH. "La locomotive Thuile Cabforward". Retrieved 2023-04-26.

[SNCF-1] "BIG WHEELS FOR HIGH SPEEDS". SNCF Society. Retrieved 2008-04-01. ^{[dead link‍]}

[Self-2] Douglas Self. "The Thuile Cabforward". Retrieved 2008-04-01.

[CheminotRGCF-3] DH. "La locomotive Thuile Cabforward". Retrieved 2023-04-26.

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